Dyno Numbers from M6 to A4 
View Poll Results: What dyno number rwhp?
390
2
4.65%
380
21
48.84%
370
12
27.91%
360
8
18.60%
Voters: 43. You may not vote on this poll
Dyno Numbers from M6 to A4
i would guess 365-370 rwhp if your converter is unlocked and decently efficient. i went from a t56 to A4 and went from 385 rwhp to 340 rwhp. no other changes made. i ran a yank 4000 that was not very efficient.
It's not going to be a percentage. That's just silly. That would be like saying a 300hp car only uses 30hp to turn a TH400, but a 1000hp car uses 100hp to turn one. That's just not right. It'll be closer to a flat number loss.
And I only lost 20rwhp locked and 30rwhp unlocked on my 4L80e swap... but the tune changed. I was on my 24* nitrous tune on the M6, and was on 29* NA tune on the 4L80e. So really we don't know. Just wanted to tell the story I guess.
And I only lost 20rwhp locked and 30rwhp unlocked on my 4L80e swap... but the tune changed. I was on my 24* nitrous tune on the M6, and was on 29* NA tune on the 4L80e. So really we don't know. Just wanted to tell the story I guess.
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Originally Posted by MikeD101898
Take off 6%. So about 382.
Drivetrain loss with M6 is about 14%. A4 is about 20%
Drivetrain loss with M6 is about 14%. A4 is about 20%
Actually, everything ive learned about motors makes me agree with this guy. it will be a certain percentage, as the faster you try to accelerate the components inside of your transmission/rear end/driveshaft the more resistance you will encounter. the key is that you arent just turning the components, when you add more power you are trying to accelerate them at a much quicker pace and the more and more you try to increase the acceleration the more power it will take. Ive heard of percentages being used quite often when calculation drivetrain losses. and I think mike's about on the button with ~20 percent total loss. JMHO.
Nine-Eight
Originally Posted by nine-eight
Actually, everything ive learned about motors makes me agree with this guy. it will be a certain percentage, as the faster you try to accelerate the components inside of your transmission/rear end/driveshaft the more resistance you will encounter. the key is that you arent just turning the components, when you add more power you are trying to accelerate them at a much quicker pace and the more and more you try to increase the acceleration the more power it will take. Ive heard of percentages being used quite often when calculation drivetrain losses. and I think mike's about on the button with ~20 percent total loss. JMHO.
Nine-Eight
Nine-Eight
I believe locking a converter makes the auto results damn near identical to a clutch car.
You think the guts of an auto trans is that much harder to turn than a 6 spd?
Remember the drivetrain is going to remain the same.
As stated above, I'm in the belief that its a set amount of loss, a percentage, but only to a point. Again, I agree that a 1000 hp car wont loose 200 hp. Which is what it would be by your calculations of 20% for an auto. That would be like drive with the E-brake on.
on mine i went from 347 hp with no headers and the patriot 226 cam to 355 with headers and ms4 unlocked, i was dissapointed but i want to go to the track to see how my times change hopefully that will get me happy
Originally Posted by 1989GTA
OK, we are well into Tuesday night. Any results?
Originally Posted by 6-Speed Terror
on mine i went from 347 hp with no headers and the patriot 226 cam to 355 with headers and ms4 unlocked, i was dissapointed but i want to go to the track to see how my times change hopefully that will get me happy
He could of done a pull unlocked anyways if you wanted. The lockup clutch might just be slipping or not engaging. You're not blowing through the converter at your power levels. How many miles on the tranny/converter?
It should still perform well at the track.
It should still perform well at the track.
Originally Posted by DannoWS6
He could of done a pull unlocked anyways if you wanted. The lockup clutch might just be slipping or not engaging. You're not blowing through the converter at your power levels. How many miles on the tranny/converter?
It should still perform well at the track.
It should still perform well at the track.