sounds encouraging Kevin, it'll be interesting to see what that translates to on the track/dyno

 

Just went out quick for some tuning and some lunch. Within a few pulls I had the AFR curve back to normal. I had to add a couple percent up top, but I had to pull out a ****load in the midrange, holy crap. Looking at the boost logs, it's obvious why. Boost threshold went up 500 rpm, LMAO.

Once the AFR curve was all set, I put the boost back to where it was. Just under 25 psi tapering to just under 22. Holy **** does this thing pull! The car consistently pulls 1.7 second 60-80s, and I saw one 1.6. For comparison for those that don't regularly pay attention to this indicator, at 2.2 seconds I was running 12.3 at 110. I'm not going to make any predicitions, but it is clear that pump gas power has improved sunstantially with this turbo and the other things done since. Race gas and race gas + nitrous should be a pretty good time.

5 more weeks!

 

nice! what does your afr's look like at each ~ 1000 rpm increments?

I'm still waiting on my BR tbe to come in before I put my lm-1 in the evo, but my stealth liked 11.5:1 at midrange and I let it go as rich as 10.0:1 by 8300 and it allowed much more timing like that.

for instance I trapped back to back 120 and 121mph with a flat 11.5:1 afr @ 20psi and all the timing it could handle without getting significant knock.

2 minutes later I added ~ 6* more timing and let the afr go into the low 10's by redline and she went 125mph at the same boost level.

I'm just wondering if my evo would like that.

 

EVOs seem to like to run leaner, even compared to their DSM counterparts. For daily street driving I run in the low 11s across the board, a touch richer where boost first peaks. That's an old DSM habit (to prevent a little knock at the start of a gear from ruining power throughout that whole gear), the EVO doesn't really seem to need it now that I've played around with it some. These motors are much more resistant to knock...

 

I use the HKS's 264i/272e and they maintain power past redline for me. I posted my Dyno plot on this thread on post #48.

I have my cam gears set up at a very rare combination. TTP set them up for me a while back and the power just stays up there. So for those of you with the smaller cams, try moving the gear settings if the power is droping off right now. You may see some very good improvements and save money by keeping your mild cams, .

 

I'd have to spend money on some cam gears then I'll wait and see how it looks on the dyno then make a decision from that. I may hold off on cams til I'm ready to get the motor rebuilt with aem ems.

 

wow great stuff

 

guys,

forgive the intrusion but I am one of the few UK people to be running an evogreen and would appreciate some feedback.

The car is an 03 UK evo 8. It is not an MR spec, so has standard evo 8 cams.

so far the most I have had out of the turbo is 315whp on dyno dynamics rollers, (which read around the mustang level).

The 10.5 evo 8 turbo I had on before made 295whp. I don't know if it would have made more because the evogreen was stuck at this same power until we reversed the dump valve to find the additional 20whp.

I see a lot of people on here getting great results changing for big cams on normal turbos, but I see no examples of big turbos on standard cams which are subsequently changed.

Anyway, all I want to know is, do people here think the standard evo 8 cams are the limiting factor as to why I am only seeing 315whp on straight 93/94 pump fuel?

I have spent a lot of money buying some new cams to see if it will solve the problem, but am not sure that I was on the limit of the standard cams before.

new cams are 265 degree custom piper items. 226 and 220 degrees at 1mm lift and 11.5mm and 10.8mm peak lift. Hope they work out.

Any thoughts would be greatly appreciated.

Adam

 

I hear revolvers work really great with fp evo green. Std cams sure are holding you back from unleashing additional power.

 

feels like your question is a little bit dubious... what is a limiting factor? i mean everything that can be changed to make power is a limiting factor... if you had kept your cams and changed out your intake manifold you'd have made power and that woulda been an elimination of a limiting factor, but i don't think that's what you're lookin' for answer wise.

are the cams a limiting factor? cams are always a limiting factor until you get to like 360 degree cams pfft.

 

Does anybody have 2.3 and green results?

Scorke

 

2.3+ green should give you some silly tq numbers, the spool has to be instant

 

Blockhed79, how's things coming along getting that race set up between your Green and the 50 trim? Did you get any gains from your recent mods to the car (FMIC, etc...)?

 

mods didnt go on yet..as soon as its all set I'll post it up

 

Adam, if you are talking about 'standard Evo 8 cams' as in the stock cams, then I would say yes, they are holding you from making more power.
By changing cams from stock 8 to 264i/272e my car made 27 more whp and more in tq. That was with the gears set at -2/-1. That was on a Friday. Went back to the Dyno the following Monday and changet gears to -4/-1, and gained an additional 6 whp. So the gain by adding the mild cams was 33 whp.
So I think you can gain any where from 25 to 35 hp by going with up-graded cams. You will be very happy. Going for a test drive after the cam install, 1st thing I noticed was the rush in 1st gear as I stumped on the gas. Bigger cams will probably make a bit more.
[ I want to add, my current gear settings are way different, but I do recommend -4/-1 for most applications]