Help with turbo
Help with turbo
Hello everyone.
I've been driving my 85 300D for a while now as a daily. I love it! Something that I'm lacking though is initial power. It takes a while for it to start going from 0-10. Once I start moving, the power is great. I was wondering about changing out the turbo. I don't care about top end, going past 3500RPMs. Also, I'm looking at swapping rear ends out to a 2.65 so the initial takeoff would be greatly appreciated.
I'm not in a rush, there is plenty for me to work on with a 30 year old sedan.
FUEL is what you need
Sure you can use a modern gtb1752v turbo and have absolutely zero top end power but when revving in neutral you can achieve maximum boost (maximum boost is determent by fuel).
Simpler=Better mated a Garrett GT2056V to his 617 but you'd have to figure out the controlling of the vanes. If you do, you could have boost from idle & maybe some top end increases as well .
These turbos are found in the US in Jeep Liberty CRD only but the similar GT2256v is under the hood of most Sprinters and is slightly larger.
Advance your timing. Your '85 pump probably has the hole for the $40 timing tool to screw in the side. I'll bet setting it at 10* would make you much happier
There is a tool for adjusting the timing? I tried looking for one on Google without success. I Read somewhere that timing is supposed to be at 24°BTDC. So are you saying 10° is better or 10° more to make it 34°
FRAS is right, more fuel would spool your turbo a lot faster. Especially if you put a big pump on it
Nop it is not like that ,
on 617 engines, the best timing method is the drip method (unless u have access to a timing gun), and for that 14º is a good number (1 drop minute).
10º is too much advance for a unmodified engine/pump.
or take the pump out, and istall it a around 20/22 degrees. that sounds a resonably good advance.
regards
OM617's are drip timed to 24*BTDC. I don't think you can take it much past that, max 28* BTDC before it starts nailing. But timing chain stretch has probably retarded the timing of the pump and also the cam. Taking it back to stock level will likely improve perfomance
Timing for the OM617 is 10° for the M Pump and 24° for the MW pump. If it was a car that was purchased in the US it is a MW pump. M pumps were used in Europe models.
(09-03-2015, 05:05 PM)EmJay Hello everyone.
I've been driving my 85 300D for a while now as a daily. I love it! Something that I'm lacking though is initial power. It takes a while for it to start going from 0-10. Once I start moving, the power is great. I was wondering about changing out the turbo. I don't care about top end, going past 3500RPMs. Also, I'm looking at swapping rear ends out to a 2.65 so the initial takeoff would be greatly appreciated.
I'm not in a rush, there is plenty for me to work on with a 30 year old sedan.
(09-03-2015, 05:05 PM)EmJay Hello everyone.
I've been driving my 85 300D for a while now as a daily. I love it! Something that I'm lacking though is initial power. It takes a while for it to start going from 0-10. Once I start moving, the power is great. I was wondering about changing out the turbo. I don't care about top end, going past 3500RPMs. Also, I'm looking at swapping rear ends out to a 2.65 so the initial takeoff would be greatly appreciated.
I'm not in a rush, there is plenty for me to work on with a 30 year old sedan.
Yeah mine is a US model I believe. I like this car a lot, but I'm not looking to super turbo this thing. I just want a better launch. My first step is a set of greazzer's rebuilt injectors, then I will look at the timing since I will be there. Im trying to keep this mostly stock.
(09-09-2015, 09:37 PM)EmJay Yeah mine is a US model I believe. I like this car a lot, but I'm not looking to super turbo this thing. I just want a better launch. My first step is a set of greazzer's rebuilt injectors, then I will look at the timing since I will be there. Im trying to keep this mostly stock.
(09-09-2015, 09:37 PM)EmJay Yeah mine is a US model I believe. I like this car a lot, but I'm not looking to super turbo this thing. I just want a better launch. My first step is a set of greazzer's rebuilt injectors, then I will look at the timing since I will be there. Im trying to keep this mostly stock.
10* ATDC using RIV method. Stock timing is 15* ATDC RIV method.
Documentation proving I'm not lying about '85's having the timing hole in the side of the pump:
http://www.startekinfo.com/StarTek/outsi..._1-001.pdf
This is what the cheap mechanical tool looks like
To quote another forum member, "fuck that drip shit".