321h how much torque?
01 November 2008, 10:04 PM
#1
321h how much torque?
had my car at rr today 2.0 sti7 with md 321h + all supporting mods made 384bhp but only 325 lbs torque. what torque figures are other 321h owners seeing on a 2.0 as i thought this seemed a little low .
thanks dean.
thanks dean.
01 November 2008, 10:56 PM
#2
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but as i've been told figures aren't everything it's driveability. but still not happy
01 November 2008, 11:34 PM
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sti dean, you say all supporting mods?, what have you done?, and what rr is that from?, the torque does seem a little low, but how does the car drive?, thats the main thing.
02 November 2008, 12:01 AM
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almost identical figure of what mine produced when i was on the 321h.i got 383bhp and 320 torque,some get more torque but some dont it could be the way the dyno is opperated.if the car drives ok i shouldnt worry.
02 November 2008, 10:47 AM
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What boost level are you running it at in the midrange and topend ?
02 November 2008, 11:28 AM
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Guys, it's unusual for a turbo that spools up early, to make low torque, if anything, the opposite is true. Circa 375ftlbs isn't uncommon on a car making around 400bhp.
It would be very helpful to see the graphs, with the boost profile.
How do they actually feel on the road at circa 3500rpm ?
Mark.
It would be very helpful to see the graphs, with the boost profile.
How do they actually feel on the road at circa 3500rpm ?
Mark.
02 November 2008, 11:36 AM
#7
supporting mods are md321h,gt spec headers,3" exhaust system with sports cat in 2nd cat position,650cc injectors, 255 pump, big cone filter,samco induction pipe,simtec ecu.
Last edited by sti.dean; 02 November 2008 at 03:42 PM.
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02 November 2008, 02:47 PM
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02 November 2008, 03:13 PM
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Dean,
It doesn't help that the car was run in 3rd gear, especially on a 6 speed box. This means that whilst it's safer, and less stress on the engine, it's hard to get much load to spool the turbo up.
The graph shows peak boost at 4200rpm, I'm sure much later than you would generally get it on the road. At least I would certainly expect you to get it much earlier on the H.
It doesn't help that the car was run in 3rd gear, especially on a 6 speed box. This means that whilst it's safer, and less stress on the engine, it's hard to get much load to spool the turbo up.
The graph shows peak boost at 4200rpm, I'm sure much later than you would generally get it on the road. At least I would certainly expect you to get it much earlier on the H.
02 November 2008, 04:07 PM
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Dean,
It doesn't help that the car was run in 3rd gear, especially on a 6 speed box. This means that whilst it's safer, and less stress on the engine, it's hard to get much load to spool the turbo up.
The graph shows peak boost at 4200rpm, I'm sure much later than you would generally get it on the road. At least I would certainly expect you to get it much earlier on the H.
It doesn't help that the car was run in 3rd gear, especially on a 6 speed box. This means that whilst it's safer, and less stress on the engine, it's hard to get much load to spool the turbo up.
The graph shows peak boost at 4200rpm, I'm sure much later than you would generally get it on the road. At least I would certainly expect you to get it much earlier on the H.
Why would they do it in 3rd, is there a reason?
02 November 2008, 04:17 PM
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No roller info for mine, but deffo late 4000's to reach maximum boost !
Yes, it does need a re-re-map so hope that helps.
MD321H, Lateral headers, catted TSL 2.5/3" exhaust.
DunxC
Yes, it does need a re-re-map so hope that helps.
MD321H, Lateral headers, catted TSL 2.5/3" exhaust.
DunxC
03 November 2008, 04:59 PM
#25
any more pointers on this guys, was looking to go with the md321h on my pq in the new year just getting the last few supporting mods first. how does this compare to the vf28 in driving charteristics
03 November 2008, 06:55 PM
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Nope !
Yes, correct, it needs a re-map, but after recently adding an oil pressure gauge, the future looks forged.... 
Grumpy Dunx
Grumpy Dunx
03 November 2008, 08:38 PM
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