Looking to decrease turbo lag!
Apr 8, 2009, 06:12 PM
#16
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If you can notice difference between your friends IX and yours and the only difference is he has a turbo manifold you likely have a mechanical problem. Don't look for a mod, look for something to fix. There is no reason his car should spool faster than yours.
Apr 8, 2009, 06:57 PM
#18
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bump ^^^ help me with this turbo lag! What about headers? My friend's ix has way better throttle response/spool up and the only difference between his IX and mine is that he has headers and I don't, and I have an ETS intercooler and his fmic is stock. Would headers like the AMS exhaust manifold help spool up/throttle response? I also have cams and he doesn't. Could it be in the tuning?
I have something to decrease lag and increase power. Check out our AccessPort tune for the Evo IX.
Don't forget to click the link just above the dyno chart to read more about our Evo IX tuning.
PM me if you have any questions.
Apr 8, 2009, 07:20 PM
#19
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Hey All. I have had my evo for about two years now and I'm lovin it every day! I have some pretty cool mods and am happy with the power. The only thing I'm not loving is the turbo lag. It's not bad, but it's there. What are people doing to decrease turbo lag and/or increase throttle response. Thanks!
3/4 the turbo, 1/4 the lag 
FP Green, and meth. My friend's Evo spools like crazy. Also, GSC S1 cams instead of 272s. And ditch the FMIC for the stock one (until you need it). That's my opinion from what I've seen and the research I did back in the day (I wanted no spool
Would've actually been a TME 6.5 but the green is better now from what I can tell).Or just get a stroker kit. Bigger motor helps a lot
After being spoiled with no turbo lag in the Porsche I was terrified of it with the STi... There really is probably 1/4 of the lag I remember the Evo having...
Apr 14, 2009, 03:29 PM
#20
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Well, I don't think I have any boost leaks because it holds boost just fine. There is not increase in lag after I installed the FMIC and the cams. The lag is about the same as it was before these mods. So, I don't think the tune, cams, or FMIC are the reason for the lag, but who knows. I don't know why my friends IX spools so much better, but after we traded cars for a quick drive we both got out and the first thing we said was that my lag was much more noticable than his. Maybe it's not that bad compared to other evos, but his spools awesome. In fact, there is no noticable lag at all. Could it be the headers?
Apr 14, 2009, 03:36 PM
#21
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Out of your power adders here I think some of the best ways to increase your low end response will be:
1) an upgraded o2 housing like helix or something
2) an octane adder say methanol or aquire the mods to run e85 (pump,injectors, etc..)
3) general weight reduction will make off throtle appear more "snappy" (spare tire and so forth)
As a general question out there do you have a wideband sensor? If so what kind of AFR's are you seeing at spool up and at WOT.
1) an upgraded o2 housing like helix or something
2) an octane adder say methanol or aquire the mods to run e85 (pump,injectors, etc..)
3) general weight reduction will make off throtle appear more "snappy" (spare tire and so forth)
As a general question out there do you have a wideband sensor? If so what kind of AFR's are you seeing at spool up and at WOT.
Apr 15, 2009, 10:39 AM
#23
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It's spool envy!
Apr 17, 2009, 12:44 AM
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Yeah, I guess I probably will. I just wanted to get some opinions first so that I'm not spending hundreds of dollars on an exhaust manifold for nothing. Bushur Racing and Full-Race websites claim gains of up to 21+ whp and 19 lbs wtq by using their headers. Seems too good to be true to me. And they don't mention better spool, but some other brands do claim better spool (GTspec for example). I guess I'll just do it and hope for the best.
Last edited by cheesehead713; Apr 17, 2009 at 12:46 AM.
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