Dyno Sheet For R34 - Scrutineering

[Bluprint]

Here's mine, I went through home at lunchtime so I e-mailed it to myself at work

The engine isn't in an R34, it's in an R31 but it's much of a muchness I guess.

Only mods are a full 3" mandrel exhaust from turbo back (non split dump) and high flow cat, Just Jap 600x300 FMIC and a Blitz pod. Stock boost and stock ECU.

It's pretty similar to yours, I wouldn't be worried that yours is weak or anything.

Was yours dyno'd in 4th gear?

[nuffsaid]

3rd gear i believe

[BezerkR32]

You should have dynod car before you modified it, then you would no if you made any improvement, probably best not to shoot your mouth off as you have no idea what car made in stock form. if you are seeing an extra 2 pound of boost, the exhaust mod is clearly working. Put some boost in it and the dump pipe will come into its own.

Oh so I am making 10psi with this setup? Fair enough then, no need for EBC or boost tap then haha

I know its a linear curve and all which is good for a stockish car. I dont have a pod, just a apexi panel filter. And I dont think Im making 25psi, I believe its 10? Correct me if I am wrong hahah And with regards to BATMBLs pipes, doesnt seem like it made much of a difference, maybe its just my setup but the 16rwkw claim for the dump pipe alone just doesnt add up with my sums.

I expected:

10-15 from the split dump

maybe 5-10 for the cat

and another 5-10 for the cat back.

So worst case should be a 20rwkw gain, best case, 30ish??

[satanic]

I heard somewhere that for every 1PSI of boost wound up; it works out to being 11rwkw more

I'm running 200rwkw on 7psi now; can't wait to wind it up to 18psi

As people have said, just crank up the boost!

[MBS206]

Yes, it's an old thread, I know, I was looking for something else entirely (looking for dyno graphs from a certain workshop to compare with)

Anyway, I noticed on the first dyno graph that has been posted, the car has been run in the wrong shootout mode. This WILL affect your power read out.

The car should have been run in Shoot_6F, not Shoot_6.

This affects ramp rating, and internal measurements etc.

[kralster]

Well my old stock manual R34 made 157 RWKW at the south australian dyno day, so you'd want a bit more than what the topic creater got.

[so_tred]

I didn't really wanna add to this topic since it's an old one, but how/why is the whole "should have been run in Shoot_6F, not Shoot_6" going to make such a difference, exactly? (without repeating the ramp rating etc - just a clearer answer)

Edited July 15, 2007 by so_tred

[MBS206]

http://www.toymods.net/forums/showthread.p...;highlight=dyno