OM602 Turbo choices.....
OM602 Turbo choices.....
Ben Duncan
Duncansport
04-15-2013, 08:31 AM #1Hello all. Long time M-B owner and tech, shop owner. Finally got another W124 1991 300D. Pump is going to Dieselmekin, intercooler and pipeing im building currently. So were down to the turbo choices here. I know everyone love the HX35, however im in fear of terrible spool time ect. Leaning a bit towards a HY35 as i think it may spool a bit quicker ( 100miles daily commute needs to still be ok for dail driving) But if im going through the trouble of milling my exhaust manifold for the T3 flange why not a T3/T4 base with a large wastegate for quick spool and good high RPM boost control. Or even the GT28 and keep the T25 flange? According to the math i need about 625CFM of flow. Again any insight, opinions...
Ben Duncan
This was my idea, T25/t4 hybrid, big external waste gate and a nice compressor section..
Turbine section thrid one down is a T25 flange T3 hot side
Duncansport
04-15-2013, 12:02 PM #2
This was my idea, T25/t4 hybrid, big external waste gate and a nice compressor section..
Turbine section thrid one down is a T25 flange T3 hot side
(04-15-2013, 03:08 PM)EDH_Performance What is the hp target?
250-275 tops... Transmission big limiter here.
Duncansport
04-15-2013, 03:54 PM #4(04-15-2013, 03:08 PM)EDH_Performance What is the hp target?
250-275 tops... Transmission big limiter here.
(04-15-2013, 03:54 PM)Duncansport(04-15-2013, 03:08 PM)EDH_Performance What is the hp target?
250-275 tops... Transmission big limiter here.
Holset he221w FTW!!!! Have full pressure at 3000rpm on my small 1665ccm 8valve IDI bmw diesel with the big 7cm house
Is good for around 300hp
And has a t25 flange
EDH_Performance
04-15-2013, 04:08 PM #5(04-15-2013, 03:54 PM)Duncansport(04-15-2013, 03:08 PM)EDH_Performance What is the hp target?
250-275 tops... Transmission big limiter here.
Holset he221w FTW!!!! Have full pressure at 3000rpm on my small 1665ccm 8valve IDI bmw diesel with the big 7cm house
Is good for around 300hpAnd has a t25 flange
1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
04-15-2013, 05:40 PM #6With the smaller exhaust flange the exhaust flow will be faster helping in low end spool up. but it will affect the exhaust flow at higher rpm if the turbo is a big one
1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
(04-15-2013, 05:40 PM)willbhere4u With the smaller exhaust flange the exhaust flow will be faster helping in low end spool up. but it will affect the exhaust flow at higher rpm if the turbo is a big one
Thats the thinking with a oversize waste gate (44mm on a T25).... Perhaps not worth all the trouble though.
Duncansport
04-15-2013, 06:19 PM #7(04-15-2013, 05:40 PM)willbhere4u With the smaller exhaust flange the exhaust flow will be faster helping in low end spool up. but it will affect the exhaust flow at higher rpm if the turbo is a big one
Thats the thinking with a oversize waste gate (44mm on a T25).... Perhaps not worth all the trouble though.
'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted
I think EDH is right. I wanted to put a he221 on my car, but can't find one for a decent price!
'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted
(04-17-2013, 04:45 PM)MFSuper90 I think EDH is right. I wanted to put a he221 on my car, but can't find one for a decent price!The compressor map does indeed say it to be a good fit. How ever i have yet to see on anywhere......
Duncansport
04-17-2013, 09:34 PM #9(04-17-2013, 04:45 PM)MFSuper90 I think EDH is right. I wanted to put a he221 on my car, but can't find one for a decent price!The compressor map does indeed say it to be a good fit. How ever i have yet to see on anywhere......
Basically newer commonrail cummins. like the 4.5L and so on
'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted
They are found on QSB and ISQ(?) cummins engines IIRC
Basically newer commonrail cummins. like the 4.5L and so on
'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted
(04-19-2013, 09:06 AM)MFSuper90 They are found on QSB and ISQ(?) cummins engines IIRC
Basically newer commonrail cummins. like the 4.5L and so on
and many commonrail 2.8 chineese ford i think
EDH_Performance
04-19-2013, 09:13 AM #11(04-19-2013, 09:06 AM)MFSuper90 They are found on QSB and ISQ(?) cummins engines IIRC
Basically newer commonrail cummins. like the 4.5L and so on
and many commonrail 2.8 chineese ford i think
Gotta get a M96 engine back together first though...
Duncansport
04-19-2013, 10:38 AM #12Looks like i may just settle for a H1C and a 944 waste gate set up. I think ill be going the route of the 717.432 in the next few months. Pump coming out this weekend then off to Dieselmeken.. Fun fun!!
Gotta get a M96 engine back together first though...
But! If you have one laying around, I say go for it
'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted
I wouldn't really recommend a H1C. Old and rather small compressor design. Some h1c's are REALLY small (44mm IIRC) and the bigger ones come with a giant exhaust housing. 18-21cm
But! If you have one laying around, I say go for it
'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted
(04-21-2013, 08:57 AM)MFSuper90 I wouldn't really recommend a H1C. Old and rather small compressor design. Some h1c's are REALLY small (44mm IIRC) and the bigger ones come with a giant exhaust housing. 18-21cm
But! If you have one laying around, I say go for it
Scored one for 100 so we'll give it a shot. Compressor map tells me 33lbs no problem. But might be a slow spool.....
Either way i still need a T3 flange on the exhaust manifold so if this H1C stinks then ill shoot for a HY35..
Duncansport
04-21-2013, 03:39 PM #14(04-21-2013, 08:57 AM)MFSuper90 I wouldn't really recommend a H1C. Old and rather small compressor design. Some h1c's are REALLY small (44mm IIRC) and the bigger ones come with a giant exhaust housing. 18-21cm
But! If you have one laying around, I say go for it
Scored one for 100 so we'll give it a shot. Compressor map tells me 33lbs no problem. But might be a slow spool.....
Either way i still need a T3 flange on the exhaust manifold so if this H1C stinks then ill shoot for a HY35..
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