Poor Numbers after torquer v2 install. ideas?
Poor Numbers after torquer v2 install. ideas? Hey guys,
I just installed a torquer v2 last week and the car put up low numbers on the dyno (345.5 rwhp 328.5tq) Looking for Ideas on what I should check?
The car is a 98 M6 with 108,000 miles and the following mods
-torquer v2 cam 232-234 .595 .598
-ls6 intake
-pacesetter long tubes/no cats/flowmaster exhaust
-stock 98' heads with comp 918 valve springs (tsp hardened push rods)
-new GMPP lifters were installed with cam (timing chain/oil pump too)
-stock 98 fuel system with custom tune (a/f were high12s durring dyno run, timing set at 26 degrees)
-lid,air filter
-no egr
Since running car on the dyno I checked compression on all 8 cylinders. all 8 ranged from 162-170psi (seemed ok to me?)
one problem is the car seems to be picking up false knock from the new valve train and retarded the timing 3-4 degrees at times (no knock heard while this is happening) Heads were removed and cleaned durring install. I've heard the 98' heads don't flow very good, but I would still think the numbers shouldn't be that low
Anyone have some ideas?
Thanks,
Dan
I just installed a torquer v2 last week and the car put up low numbers on the dyno (345.5 rwhp 328.5tq) Looking for Ideas on what I should check?
The car is a 98 M6 with 108,000 miles and the following mods
-torquer v2 cam 232-234 .595 .598
-ls6 intake
-pacesetter long tubes/no cats/flowmaster exhaust
-stock 98' heads with comp 918 valve springs (tsp hardened push rods)
-new GMPP lifters were installed with cam (timing chain/oil pump too)
-stock 98 fuel system with custom tune (a/f were high12s durring dyno run, timing set at 26 degrees)
-lid,air filter
-no egr
Since running car on the dyno I checked compression on all 8 cylinders. all 8 ranged from 162-170psi (seemed ok to me?)
one problem is the car seems to be picking up false knock from the new valve train and retarded the timing 3-4 degrees at times (no knock heard while this is happening) Heads were removed and cleaned durring install. I've heard the 98' heads don't flow very good, but I would still think the numbers shouldn't be that low
Anyone have some ideas?
Thanks,
Dan
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Joined: Jan 2006
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Likes: 3
From: Philly
just wondering, what type of dyno did you use? did you use a mustang dyno? most people use a dynojet and their numbers are MUCH higher than what you get from a mustang dyno. if you put down 345 rwhp on a mustang dyno, you'd be looking at like 380-390 on a dynojet probably.
make sure the pushrods are the propper length...could be causing some noise and tripping the knock sensor.
but yeah...on a poor tune and a slipping clutch...i put down 382/375 with my Torquer V1
but yeah...on a poor tune and a slipping clutch...i put down 382/375 with my Torquer V1
Originally Posted by ChocoTaco369
just wondering, what type of dyno did you use? did you use a mustang dyno? most people use a dynojet and their numbers are MUCH higher than what you get from a mustang dyno. if you put down 345 rwhp on a mustang dyno, you'd be looking at like 380-390 on a dynojet probably.
Originally Posted by teke184
make sure the pushrods are the propper length...could be causing some noise and tripping the knock sensor.
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Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
Originally Posted by av6ateu
I think it was a dynojet, It was at doug rippie motorsports in MN with a local club. most of the other guys numbers didn't seem low. there was a 99 TA M6 that made the same numbers as me without a cam
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Originally Posted by ChocoTaco369
well, there goes that theory. maybe your tune is off. that would do it for sure.
I'm going to make sure I have the correct length push rods and go from there. if the push rods are correct I may bite the bullet and try a set of ported heads to see if the car really wakes up
your timing is what is killing your power. your tuner should be able to fix it so that it isn't registering false knock. make sure that your exhaust isn't slamming against the floorboard of the car either. it's the knock retard you have to get rid of.
as far as pushrods go, you can try a 7.425. this is all dependent on if the heads were milled to clean them up at some point and the head gasket thickness
as far as pushrods go, you can try a 7.425. this is all dependent on if the heads were milled to clean them up at some point and the head gasket thickness
Originally Posted by av6ateu
I think it was a dynojet, It was at doug rippie motorsports in MN with a local club. most of the other guys numbers didn't seem low. there was a 99 TA M6 that made the same numbers as me without a cam
and good looking car iamsickofitall
Originally Posted by killerinparadise
I remember talking to you just before you ran your car on the dyno the car seemed like it still needed a little tuning it was having a hard time keeping idle, it sounded mean as f**k though and looked good too, hopefully you can get it sorted out
Thanks! yeah, the cam sounds really good on a 112lsa with long tubes and no cats.. It still needs a little work with the tune. we're working on it.Have you checked exhaust back pressure on your car?? your A/F is all out of wack. at least your car is giving you some clues as to where the missing power is hiding
