Yeah I know, but good point. The problem is the ebay core just has way too much pressure drop overall. Dyno backs this up too - 3.33" pulley it made 423/408 non-ic, then with 3.12" and intercooled it made 404/389. Roughly 2psi difference between the two setups as measured by my boost gauge. I think one thing is for the low amount of boost I'm running, a smaller, but more thermally efficient intercooler would work better - so I would have less volume of air through the intercooler at a given time (less pressure drop across the IC core), but same, or better cooling. I'm putting an 8-rib 2.90" pulley on there right now...and maybe I'll upgrade to a treadstone intercooler like SaleenGT2001 is running.
Did you advance your timing on the dyno? How about different weather conditions?
I have always been slightly suspicious of you first dyno numbers with the 3.3" pulley anyway. I also remember you track times at the time. I think you're knowledgeable and straight forward. But that's how I feel, and of course I've been wrong before. I have also noticed a few other cars that I've seen dynoed at Brennspeed, and they seemed that way to me too, but not all.
Actually the new numbers you posted seem right on to me for your mods and you might be running slightly low timimg because you were non intercooled, so it's not taking advantage of the cooler air. Are you still using a MPH tune, because I thought you had a mongoose kit? Have you returned to the track since the intercooler?
An intercooler that as no restriction is not good either. They air has to blow across something cool in order to cool itself down. My iats where low and that's the most import part. Now just pulley down until you see the same amount of boost in the intake manifold and advance the timing a little. I would bet a 3.1 would do it.
I by no means think the cheap ebay intercoolers are the best. but they do work if your on a budget, want a safe tune, with a little more power at the same boost level. It allows you to run a smaller pulley and advance the timing, more than you could without one.
I hope this doesn't start an argument between us. Because I think your car kicks ass, and you have done a great job with it.
I think it's all the same sh1t. My kit is home made and it works BEAUTIFULLY. I would sacrifice 2lbs of boost ANY day for low IAT's. Engine's like low IAT's. Plus you can tweak with the spark advance a little bit. EBAY IC's FTMFW!!!!!!
BTW: my FMIC works at 100% efficiency. Meaning if it's 100^ outside I see 100^ IAT's...and that's with tons of boost.....
Thats the best part +1
ok, I'm going to buy an intercooler off ebay ...what size did all you guys get
i know i want a minimum of 3" thick I was thinking 28x10x3 or something lke that
Buy this one it's already to go. You might have to tweak it. Of course you have to reclock your supercharger. It's basically what I built just cheaper and easier
http://cgi.ebay.com/ebaymotors/Ford...014QQitemZ330209328792QQrdZ1QQsspagenameZWDVW
