Quote:
Originally Posted by 4thM3
Harold,
Turbo newbie questions. Will adding a larger intercooler increase turbo lag? I've read some posts that suggest that they're great for power but can increase lag.. Is a tune necessary to get any benefit (other than keeping engine cooler)? Still deciding which tune to use. Does the tune help the lag if it's there?
Sorry for so many questions.
David
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Yes, overly large IC can potentially cuase a lag since it take time to fill. With this 5" ETS there is none.
Although the IAT's will be lower with this ETS IC, there is no power gains at stock boost levels. We have done back to back to back testings on stock software with no gains on a dyno, but seat of the pants said there is something.
Since there is no lag with this IC you don't need to tune to correct it, but rather to give you a bit more power throughout the powerband. GIAC has a really good flash with excellent street manners, developed after hours of testing using my 1M, it's a full release, not just a beta. We can flash your ECU if you send it to us or flash at your location as I am in the Bay area often.
If you are not ready for an intake, I recommend at least a high flow drop-in filter with any stage 1 flash tune for best results.