New Project - Skunkwerks EM9D
New Project - Skunkwerks EM9D
You "treed" him. He was asleep at the switch with the .723 R/T. Add your R/T to your time and his to his time and you get the actual times.
I hate the standard light sequence and prefer a "pro" tree. The standard sequence gets me antsy waiting for the green. For a better R/T, try fixing your eyes on the last yellow before the green. Don't watch the lights come down, just fix your stare on the yellow. When it comes on, GO! Forget the green. It takes the car that last half second to get moving. Beware though, if you stage too deep, you'll red light.
Inch forward until you just light the last stage light and don't move any further.
(09-09-2010, 06:02 AM)E300TSC You "treed" him. He was asleep at the switch with the .723 R/T. Add your R/T to your time and his to his time and you get the actual times.
I hate the standard light sequence and prefer a "pro" tree. The standard sequence gets me antsy waiting for the green. For a better R/T, try fixing your eyes on the last yellow before the green. Don't watch the lights come down, just fix your stare on the yellow. When it comes on, GO! Forget the green. It takes the car that last half second to get moving. Beware though, if you stage too deep, you'll red light.
Inch forward until you just light the last stage light and don't move any further.
(09-09-2010, 06:02 AM)E300TSC You "treed" him. He was asleep at the switch with the .723 R/T. Add your R/T to your time and his to his time and you get the actual times.
I hate the standard light sequence and prefer a "pro" tree. The standard sequence gets me antsy waiting for the green. For a better R/T, try fixing your eyes on the last yellow before the green. Don't watch the lights come down, just fix your stare on the yellow. When it comes on, GO! Forget the green. It takes the car that last half second to get moving. Beware though, if you stage too deep, you'll red light.
Inch forward until you just light the last stage light and don't move any further.
Am I the only one that wants to see a burnout video before you get rid of the auto trans??? You know, put it out of its misery ... !!
Screw boring burnouts, I want to see the breaking point of the transmission.
The breaking point is included in the burnout if done properly
Get that trans temp up, rev the motor and shift! haha pretend there is a clutch and see what happens
(09-09-2010, 07:12 AM)Rudolf_Diesel I will pay more attention to staging and do a "deep stage", I believe that is what it is called.
There is a whole art form to just launching the vehicle, let alone actual racing.
(09-09-2010, 07:12 AM)Rudolf_Diesel I will pay more attention to staging and do a "deep stage", I believe that is what it is called.
There is a whole art form to just launching the vehicle, let alone actual racing.
Rudolf invited me to go to the Irwindale Speedway 1/8 mile drags last night and it was a blast! I believe he made a total of 5 passes (3 of which before I got there). I shot video for him for the last 2 passes. The man needs a trans! The ole 300 definitely gets the "what the hell is this thing doing here" looks and comments and the "that thing stinks" haha but then when the hood pops open ..... This happens
That picture is priceless
There Is! Rudolf must be busy working on everyone's projects lol
I know it's hard but be patient, he will post em...
So this probably belongs in the Transmission section, I will post some information there as well...
As you know I have been having some trans issues since the S/C and the Über pump - mainly flaring and some high speed slippage. The high speed slippage occurs when I am cruising on the freeway and I floor it and the RPMs and boost rise, but the MPH stays the same.
I did some research and found that many of the guys running autos and drag race use something called "tractor fluid". Upon further research I found that specifically use John Deere "Hy-Gard" transmission and hydraulic fluid for heavy equipment and tractors. I use Sweepco 714 in my truck, which is basically the same type of fluid, but supposedly the best out there. Sweepco is used in throphy truck auto transmissions and they sometimes run up to 400*F and the oil does not break down. Sweepco is supposed to have an additional additive that the Hy-Gard does not, but the Hy-Gard is only $14.00+ / gallon vs. the Sweepco at $32.00 / gallon.
I purchased 2-1/2 gallons of Hy-Gard on Friday from a John Deere dealer in a nearby town (home of West Coast Choppers). I also purchased 2 gallons of Wal-mart brand Dex III to aid in flushing the trans. Other supplies needed were a 5 gallon bucket and 3/4" I.D. clear vinyl hose.
I removed the trans cooler line from the passenger side of the radiator and installed the vinyl hose on the rubber hose coming from the radiator and ran the vinyl hose into the 5 gallon bucket. I started the car and as the fluid was coming out of the hose and into the bucket I was adding the fresh Dex III into the dipstick tube. I poured 8 qts. into the trans and ran the motor with my assistant putting the trans through the gears and leaving it in drive until the fluid onl started to trickle out of the vinyl hose. At this point I stopped the engine and I drained the balance of the fluid from the pan and also drained the torque converter. I let it drain for about 45 minutes until it looked like it was only a few drops.
Most of the guys that are running the Hy-Gard use at least one quart of tranny fluid for coloring the base fluid and for some of the additvies, but mainly for color. I added 6 qts. to start and took it for a test drive, really quick to see if all was well. I also needed to adjust my my linkage since the motor was lowered and the linkage was off a bit.
I took it for a test drive and I CAN feel a difference, the shifting is a little firmer, yet not harsh. Those that have used it described it as "grippy". On hard accelleration, there is a slight flare between 2-3, but not as bad as before. When I am on the freeway it still slips a bit, but if I back off on the throttle a bit, the speed catches up to the RPMs.
I will report more as I drive it some more and allow the fluid to do its' magic....The other thing I need to do is use a smaller orifice and see if that helps 2-3 shifting.
How does it run when you don't use vacuum at all? Have you adjusted up the modulator pressure?
(09-11-2010, 04:09 PM)ForcedInduction How does it run when you don't use vacuum at all? Have you adjusted up the modulator pressure?
(09-11-2010, 04:09 PM)ForcedInduction How does it run when you don't use vacuum at all? Have you adjusted up the modulator pressure?
Good to hear the fluid is making a difference.
I do not know what the valve body looks like or how it works in these cars; but with my Turbo 350 trans in my Sprint I removed the valve body and drilled out the holes in the separator plate where the 1-2 and 2-3 clutch apply fluid passes through. This didn't make the trans shift harder per-say but much firmer and quicker as the volume allowed to apply the clutches was increase significantly...
I dunno if this will help the 722 but it might be worth looking into.
I thought there was a spring upgrade in the valve body available for these cars to eliminate the shifting flair between 2,3 shift I found a few years ago doing research but I cant remember where I found it???
(09-11-2010, 07:36 PM)willbhere4u I thought there was a spring upgrade in the valve body available for these cars to eliminate the shifting flair between 2,3 shift I found a few years ago doing research but I cant remember where I found it???
this one ?
http://www.ctpowertrain.com/servlet/the-...Kit/Detail
Tom
(09-11-2010, 07:36 PM)willbhere4u I thought there was a spring upgrade in the valve body available for these cars to eliminate the shifting flair between 2,3 shift I found a few years ago doing research but I cant remember where I found it???
(09-12-2010, 01:25 AM)tomnik this one ?
http://www.ctpowertrain.com/servlet/the-...Kit/Detail
Tom
(09-11-2010, 07:36 PM)willbhere4u I thought there was a spring upgrade in the valve body available for these cars to eliminate the shifting flair between 2,3 shift I found a few years ago doing research but I cant remember where I found it???
(09-12-2010, 01:25 AM)tomnik this one ?
http://www.ctpowertrain.com/servlet/the-...Kit/Detail
Tom
(09-11-2010, 07:36 PM)willbhere4u I thought there was a spring upgrade in the valve body available for these cars to eliminate the shifting flair between 2,3 shift I found a few years ago doing research but I cant remember where I found it???
I checked the modulator pressure today and it was 3.4 bar - spec for 722.315 (my trans case #) calls for 2.9 bar. I set it to spec and it shifted really nice and smooth, like you would expect a luxury car to shift...but that is not what I am after. I ended up setting the pressure at 3.7 bar and it seems to be doing well. I will leave it at this settimg for a few days and see if it is good. It takes about 10 mins. to hook up gauge and make the adjustment so no big deal to may adjustments if needed.
As I stated earlier I ordered a spring kit, so hopefully I will get it by early next week and install before the races on Saturday.
(09-12-2010, 10:28 AM)Rudolf_Diesel(09-12-2010, 01:25 AM)tomnik this one ?
http://www.ctpowertrain.com/servlet/the-...Kit/Detail
Tom
(09-11-2010, 07:36 PM)willbhere4u I thought there was a spring upgrade in the valve body available for these cars to eliminate the shifting flair between 2,3 shift I found a few years ago doing research but I cant remember where I found it???
Thanks! I just ordered the kit and it should be here before next Saturday...hopefully I can get it in there before I go to Fontana.
(09-12-2010, 10:28 AM)Rudolf_Diesel(09-12-2010, 01:25 AM)tomnik this one ?
http://www.ctpowertrain.com/servlet/the-...Kit/Detail
Tom
(09-11-2010, 07:36 PM)willbhere4u I thought there was a spring upgrade in the valve body available for these cars to eliminate the shifting flair between 2,3 shift I found a few years ago doing research but I cant remember where I found it???
Thanks! I just ordered the kit and it should be here before next Saturday...hopefully I can get it in there before I go to Fontana.
(09-12-2010, 06:49 PM)DeliveryValve R_D just a note, if your unhappy with 2-3 and the rest of the shifting is acceptable, then only change out the K1 springs. Very easy to do and can do it without removing valve body, located on driver's side front of valve body. If you use the whole kit, then the rest of the shifting characteristics will change. Possibly to an unacceptable manner.
Another note, K2 spring for firmer 3-4 is easy to get at also, located driver's side rear of the valve body. 1-2 will need to split the valve body.
(09-12-2010, 06:49 PM)DeliveryValve R_D just a note, if your unhappy with 2-3 and the rest of the shifting is acceptable, then only change out the K1 springs. Very easy to do and can do it without removing valve body, located on driver's side front of valve body. If you use the whole kit, then the rest of the shifting characteristics will change. Possibly to an unacceptable manner.
Another note, K2 spring for firmer 3-4 is easy to get at also, located driver's side rear of the valve body. 1-2 will need to split the valve body.
Hope it works out well!
I was seriously thinking of this upgrade in my 300sd before a bad junk yard oil cooler killed it
don't buy used oil coolers ever! You can never get all of the crap out from a previous engine failure!
Rudolf I have to ask if a Tremec 6 speed would be a possibility for your conversion? Is it possible and you just have a 5 speed already?
(09-14-2010, 10:19 PM)Silberpfeil Rudolf I have to ask if a Tremec 6 speed would be a possibility for your conversion? Is it possible and you just have a 5 speed already?
(09-14-2010, 10:19 PM)Silberpfeil Rudolf I have to ask if a Tremec 6 speed would be a possibility for your conversion? Is it possible and you just have a 5 speed already?
Okay I got my trans kit today and will install tomorrow after work. I am going to firm up the shifts on 2-3 and 3-4 as firm as they will go...firm = less slip.
So as far as I can tell, correct me if I am wrong, I need to eliminate all of the highlighted pieces for K1/k2 (except for plates) and install the new springs in their respective positions, right?
K1 spring (purple)
K2 spring (pink)
(09-15-2010, 09:08 PM)Rudolf_Diesel ...
So as far as I can tell, correct me if I am wrong, I need to eliminate all of the highlighted pieces for K1/k2 (except for plates) and install the new springs in their respective positions, right?
...
(09-15-2010, 09:08 PM)Rudolf_Diesel ...
So as far as I can tell, correct me if I am wrong, I need to eliminate all of the highlighted pieces for K1/k2 (except for plates) and install the new springs in their respective positions, right?
...
Got it, thanks! The instructions are not the greatest, and I wasn't sure if I need the piston..I only want to do it once!
I got the springs for K1 / K2 installed and what a difference! It shifts relatively normal if you just cruise, but get on it and it shifts FIRM, not harsh, but nice and firm. I have not tested with max fuel yet, but it should make a difference their too.
It is too bad that I had to buy an entire kit for $55.00 and I only needed two springs. If any one wants to firm up their trans and needs some springs, I am willing to sell for a few bucks each.
I have also been working on a solution to my bypass valve operation. I was having an issue with the bypass valves fluttering because of the pressure dropping and the valves closing and the cycle repeating - the boost gauge would bounce and you could hear the S/C making a "woo woo woo" sound... as the valve opened and closed.
I designed a new circuit that is working really nice, it is the best it has run since the S/C was installed. It uses two micro switches, one pressure switch, two relays and a solenoid valve to control the vacuum signal. Below is the schematic:
I know what some are saying, you can do that with vacuum valves, you don't need to use all those electrics...well I prefer to use electrcial controls, that is what I do for a living and it is very easy to work with.
As I drive and the boost gets to the set point, CR1 energizes and is held by an aux. set of contacts. SW1 is a reset that is activated when the throttle linkage is at rest - idle. There is an additional switch for WOT that closes the bypass valves and allows for the S/C to pump some air to the turbo. I have also incorporated a switch to bypass the system when I drag race.
Before this the car would cruise on the freeway at 65 and the boost would be at whatever I had the pressure switch set to. Now it will be at 3 psi and when I add fuel the turbo starts to spool and we have boost, If I floor it, the boost comes on instantly from the S/C.
Good to hear the two springs worked out.
Thanks for posting your by-pass solution. It's always great when you can use what you know for other things to fix an issue.
.
(09-16-2010, 10:10 PM)Rudolf_Diesel Before this the car would cruise on the freeway at 65 and the boost would be at whatever I had the pressure switch set to. Now it will be at 3 psi and when I add fuel the turbo starts to spool and we have boost, If I floor it, the boost comes on instantly from the S/C.
(09-16-2010, 10:10 PM)Rudolf_Diesel Before this the car would cruise on the freeway at 65 and the boost would be at whatever I had the pressure switch set to. Now it will be at 3 psi and when I add fuel the turbo starts to spool and we have boost, If I floor it, the boost comes on instantly from the S/C.
(09-17-2010, 12:34 PM)ConnClark(09-16-2010, 10:10 PM)Rudolf_Diesel Before this the car would cruise on the freeway at 65 and the boost would be at whatever I had the pressure switch set to. Now it will be at 3 psi and when I add fuel the turbo starts to spool and we have boost, If I floor it, the boost comes on instantly from the S/C.
Shouldn't it be at 4 to 5 psi at 65?
(09-17-2010, 12:34 PM)ConnClark(09-16-2010, 10:10 PM)Rudolf_Diesel Before this the car would cruise on the freeway at 65 and the boost would be at whatever I had the pressure switch set to. Now it will be at 3 psi and when I add fuel the turbo starts to spool and we have boost, If I floor it, the boost comes on instantly from the S/C.
Shouldn't it be at 4 to 5 psi at 65?
Does it matter what the boost is? The lower the boost required to maintain a speed is good right? It is related to airflow efficiency through the engine correct? I believe this is where Forced comes in with all his fancy facts....
Boost cools combustion, just a few psi on the highway will cool EGTs by 100* or so. Its a tradeoff; cooler combustion means less heat waste into the cooling system but boost means exhaust backpressure.
I've found with my VNT that under 45mph my engine likes cruising without any boost, above that it likes having 5psi.
I have 2 lbs of boost at idle and I have 3-5 lbs of boost at 65 mph depending on my foot, the EGTS are around 650, depending on my foot and accelerator is not far from idle position...no blacksmoke and low egt's means I am not wasting fuel, when I accelerate boost comes on smooth and power is there and no black smoke which means complete combustion. Little to no boost = less stress on the parts as well.
Next week I will try to get e consistent tank on this set up and see what the fuel milage is.
As far as EMP, it is either equal to or a few lbs. higher then the boost pressure and it is also lower depending on the load - yes I have experienced all of these scenarios. I believe it meets or exceeds my expectations for back pressure in the exhaust system.
Dunno if this is good or not but I'm at like 6psi @ 65mph and 9psi @ 75-80mph....
(09-17-2010, 05:58 PM)Captain America Dunno if this is good or not but I'm at like 6psi @ 65mph and 9psi @ 75-80mph....
(09-17-2010, 05:58 PM)Captain America Dunno if this is good or not but I'm at like 6psi @ 65mph and 9psi @ 75-80mph....
(09-17-2010, 05:29 PM)Rudolf_Diesel As far as EMP, it is either equal to or a few lbs. higher then the boost pressure and it is also lower depending on the load - yes I have experienced all of these scenarios. I believe it meets or exceeds my expectations for back pressure in the exhaust system.
(09-17-2010, 05:29 PM)Rudolf_Diesel As far as EMP, it is either equal to or a few lbs. higher then the boost pressure and it is also lower depending on the load - yes I have experienced all of these scenarios. I believe it meets or exceeds my expectations for back pressure in the exhaust system.
Mr. Clark, What is your setup? I don't see anything on your car... Nice to know my car is normal? Always seemed to me to be a bit high, but maybe not.
(09-17-2010, 09:15 PM)Captain America Mr. Clark, What is your setup? I don't see anything on your car... Nice to know my car is normal? Always seemed to me to be a bit high, but maybe not.
(09-17-2010, 09:15 PM)Captain America Mr. Clark, What is your setup? I don't see anything on your car... Nice to know my car is normal? Always seemed to me to be a bit high, but maybe not.
(09-18-2010, 12:11 PM)ConnClark(09-17-2010, 09:15 PM)Captain America Mr. Clark, What is your setup? I don't see anything on your car... Nice to know my car is normal? Always seemed to me to be a bit high, but maybe not.
I have kludged a SDL turbo on to my 85 Kalifornistani 300SD.
(09-18-2010, 09:51 AM)meareweird
I think this should be the new front page pic!
(09-18-2010, 12:11 PM)ConnClark(09-17-2010, 09:15 PM)Captain America Mr. Clark, What is your setup? I don't see anything on your car... Nice to know my car is normal? Always seemed to me to be a bit high, but maybe not.
I have kludged a SDL turbo on to my 85 Kalifornistani 300SD.
(09-18-2010, 09:51 AM)meareweird
I think this should be the new front page pic!
(09-18-2010, 02:03 PM)Captain America(09-18-2010, 12:11 PM)ConnClark(09-17-2010, 09:15 PM)Captain America Mr. Clark, What is your setup? I don't see anything on your car... Nice to know my car is normal? Always seemed to me to be a bit high, but maybe not.
I have kludged a SDL turbo on to my 85 Kalifornistani 300SD.
Come again? lol
...
(09-18-2010, 02:03 PM)Captain America(09-18-2010, 12:11 PM)ConnClark(09-17-2010, 09:15 PM)Captain America Mr. Clark, What is your setup? I don't see anything on your car... Nice to know my car is normal? Always seemed to me to be a bit high, but maybe not.
I have kludged a SDL turbo on to my 85 Kalifornistani 300SD.
Come again? lol
...
Delivery Valve where did you get that pic a w123 with a hood prop is that from the factory? Oh ya nice looking girl as well!
(09-18-2010, 09:14 PM)willbhere4u Delivery Valve where did you get that pic a w123 with a hood prop is that from the factory? Oh ya nice looking girl as well!
(09-18-2010, 09:14 PM)willbhere4u Delivery Valve where did you get that pic a w123 with a hood prop is that from the factory? Oh ya nice looking girl as well!
I went out to Fontana Speedway yesterday to do some 1/4 mile racing, we got there around noon and did the tech inspection - no problems. After finding a spot we waited for some other benz entusiasts - a few guys from Peachparts and 500ecstay. One of the 500E's was a sweet ride, looked like it came off the showroom floor - that will be my next Mercedes
It was in the low 90's and I made a few runs, my first one was against a Jaguar with a SBC and purpose built to race. My second run was against a 1940 Ford with a blown small block - so far V8s. I raced 5 times and did pretty well, each time improving my times. After the first two runs I advanced the pump a few more degrees and it runs like a champ now.
I am getting the holeshot and leading, but it is reaching a plateau which I think maybe due to the S/C limiting the air flow. I made all my runs with the S/C pumping into the turbo. The next runs at Irwindale I will make with the S/C bypass actuating and letting the turbo breath alone.
I met some really nice people out there and there is a trend, my car attracts a crowd and people are amazed at the engineering that was invloved - makes me proud! I met a guy out there that is not a member of this website, but has been following the thread since day one, now that is cool.
The transmission shifted great, no flaring and no slipping! I would recommend the spring upgrade to anyone with an automatic trans.
Here are my time slips from my better runs, sorry no wins, but I think I can be proud of the outcome...I aim to be better the next time. My plan is to add an electric fuel pump to see if that may be the issue with lack of power as well.
Very, VERY nice R/T's! Great job!
Was the 240SX guy handicapped? He got the LB3A but you clearly left before him... Cornfused...
(09-19-2010, 04:26 PM)E300TSC Was the 240SX guy handicapped? He got the LB3A but you clearly left before him... Cornfused...
(09-19-2010, 04:26 PM)E300TSC Was the 240SX guy handicapped? He got the LB3A but you clearly left before him... Cornfused...
(09-19-2010, 04:26 PM)E300TSC Very, VERY nice R/T's! Great job!
Was the 240SX guy handicapped? He got the LB3A but you clearly left before him... Cornfused...
(09-19-2010, 04:26 PM)E300TSC Very, VERY nice R/T's! Great job!
Was the 240SX guy handicapped? He got the LB3A but you clearly left before him... Cornfused...