Quote:
Originally Posted by Vegas69
As the old saying goes, you can't bake your cake and eat it too. If you want to road race and autocross your protouring car with over 1000 hp, you are in for a real wake up call. It's hard enough to keep them cool with 650hp from my experience. Stielow has mentioned the complexity of cooling his 750 plus hp supercharged set up recently. Unless you want a car that's going to be a 3 pump chump and overheat at every event, I'd pull back the reigns. IMO, it just won't work in a protouring car that gets used off the street. Now, in a street car, drag racer, and very light autocrosser, you could get by with it. It all comes down to your ideals. Personally, I like a car that's capable of doing anything I want with it. Engineered to take any curve ball you can throw at it.
From my experience, you build them and then your ideals change. I started out building a street car that was going to be shown once and a while and ended up with a show car that I raced all the time.
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You bring some great points. Let me be a little more specific. First off my intentions were never to autocross the car at the 1000 hp level. The mere notion of that is simply ridiculous. In fact Rarely will it ever be driven at that level, however we WILL make something very close to 1000 on pump gas just to say we did, period. I also have friends with 700-800hp cars and we all haggle each other about whos faster stoplight to stoplight, plus im planning on a few standing mile events, so occasionally it will see max boost. I confess im still on the fence about the power adder, but I dd an a&a'd Vette in the summer with just a cam'd ls2 and an upgraded radiator that makes 600whp at 9.5psi and NEVER GETS A SMIDGE HOT OR HAS ANY TROUBLE, period, so I already know that the 600-700hp range über reliably is easily doable with a centrifugal, although obviously not creating the even power throughout the range that a roots will make.
For the record, the breakdown goes something like this: 30% autocross, 40% cruiser (including some longer trips: power tour-ish type things), 20% speciality events like the Texas mile and possibly some higher speed road course and race track type stuff later on. And last, 10% show car; i don't really care about that right now. I'll probably just attend the local shows that are close and convenient. Personally when I think of people talking about regret in "driving their showcar" it mainly refers to the 20k paint job. And I'm completely avoiding that for now. I'm going to save the details for a possible build thread later, but I digress.
I definitely agree with most of what you're saying, but then again I would never build a 150k car with a carb'd motor either
. So truly, to each his own. Honestly my end goal is pretty much what you said, verbatim; to build something that can handle whatever I throw at it. I guess im really trying to just bake my cake eat as much of it as i can. I'd be an idiot if I didn't agree that there will be bumps in the road along the way, but I feel like I've got a pretty good handle on it. Im just digging the ability to pick some great brains here as I go. Do you miss your car yet? I wish I'd have had enough to just dump it on yours all at once, it was way more than worth what you got for it. Then again I know i would've cringed every time I looked close at that mirror black paint after an event
Have you seen the Kenne bell liquid cooling systems? Ive talked to Jeff at Tpe there in Vegas a few times since kb started drilling cooling holes in those and he spoke highly of them