04 Evo 8 Rs. Stock Block/ Stock 9.8 Turbo
Ported Ex. Manifold
Megan O2 Housing
Cobb 3" TBE (test pipe)
K&N Drop In Filter
Walbro 255
GM 3-Port
Omni 4 Bar
LC1 WB
Self Tuned

What do you think? I feel like thats pretty high for the mods.
2 directions on the same road. Weight set to 3320 w/ Occ. (actually scaled)

309hp/307tq @ 26psi on 92 oct

 

What octane? looks about right from the little I've seen and at 26psi maybe a little low. I would look more at the safety of tune and if your happy with the power than some arbitrary number that can change from multiple variables and dyno to dyno.

 

^ 92 octane. added now. Ya Im pretty happy, just surprised.

 

Numbers seem a little low to me. Also, boost seems to be coming on a little slow and a little too gradual. Could be a boost leak or it could something in the tune, or a combination. If you can, try posting a log and we might be able to help you further.

 

Here is a log of the blue run.

 

You're about 50-60 hp low and about 40-50 tq low if I had to guess.

 

I thought all RS came with 10.5 turbos. I could be wrong.

 

05+ only.

 

360-370hp with stock cams, stock block, stock turbo? seems a little absurd. I wish it was that easy.

Says 9.8T on the side of it

 

No camshaft set up usualky go for 300-320 on pump

People are so used to seeing e85 # only

 

This or they have gotten accustomed to IX numbers as well. For an VIII with the 9.8, no cams and the fuel its just about right.

 

Yea bud I think you've got a boost or exhaust leak somewhere. Boost just seems to be building slower than it should, especially from 3500+. I would do a boost leak test and also check your wastegate and perhaps try adding some more preload. Also, what BOV are you running? If it's a stock 8 (the black plastic one) there's a good chance it's leaking and opening prematurely. Lastly, in the tune, if you're using Tephra V7 you could try raising the "100% WGDC until" table to say 220-230.

Just a few suggestions that I hope will help

 

looks a little low for your mods. I had similar mods to you except stock exhaust manifold and 272 HKS cams at 23 # of boost and made 325 hp/ 319 trq on a dyno-jet. I know your running stock cams but a little more boost. Also I had evo 8 10.5 turbo.

 

Ya its been a while since I've boost leak tested it. but the normal culprits have been taken care of, 9 bov, TB seals, clamps all tight. Im partly thinking its the stock lower pipe thats choking it. I did like the idea of raising that table though. Done

 

If that doesn't help much I would definitely check the preload on your wastegate and maybe tighten down a turn or two.