Resurrecting Casper

[hamburglar]

88 in question. Bonus: gangsta pic of me as a kid in grandpas BRAND NEW 1989 3-speed auto beast. cant recreate those shorts. That's a time stamp.

[Festiver]

This is just awesome all of it btw that a beautiful 88

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[sc72]

No worries about being shamed, were are you living now, I would like to see that rust free southern car, just remember this is the rust belt. Glad to have you back.

[hamburglar]

I'm in Des monies now with my 88 in a barn outside of Boone.
It lives next to an ISU tailgating bus and a swapped rwd old school Corolla. I see you're from pella. I got my pilots license there! Is there any Iowa meets anymore?

[Advancedynamix]

88 in question. Bonus: gangsta pic of me as a kid in grandpas BRAND NEW 1989 3-speed auto beast. cant recreate those shorts. That's a time stamp.

It's crazy that we were about a 10 minute drive from each other when you were in Gilbert, and we didn't meet up. So much madness was going on right down the street man! Lol

[ryanprins13]

Resurrecting Casper

I think you already know i dont know much about boost setups, but i had an idea so ill show my ignorance more . What if instead of making a high revving engine thats perfectly balanced you tune it so it has a nice wide powerband and only take it to 5 or 5500 rpm. Do a sequential turbo or a supercharger plus turbo and get the same power you were wanting except lower at like 4-5500rpm and dont worry as much about balancing it perfectly. Have full boost right from 1500rpm and do whatever to the intake and exhaust to get more power at lower rpms. That would be easier wouldn't it? And it would be kinda funny to beat more exotic cars in a race and tell them you didn't go over 5000rpm... Or would that not work or be productive?


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[azgtx]

Don't matter either way. He could just put a big gumband in it and twist the bitch up and he will still out drive all of them bastards.

[sketchman]

I can't rep, because this forum is weird, but x2 on Gumbandstiva. Make it happen! lol

[Advancedynamix]

I think you already know i dont know much about boost setups, but i had an idea so ill show my ignorance more . What if instead of making a high revving engine thats perfectly balanced you tune it so it has a nice wide powerband and only take it to 5 or 5500 rpm. Do a sequential turbo or a supercharger plus turbo and get the same power you were wanting except lower at like 4-5500rpm and dont worry as much about balancing it perfectly. Have full boost right from 1500rpm and do whatever to the intake and exhaust to get more power at lower rpms. That would be easier wouldn't it? And it would be kinda funny to beat more exotic cars in a race and tell them you didn't go over 5000rpm... Or would that not work or be productive?


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Great question!
The stock b6t has a power curve similar to what you speak of. It is great for sporty driving. However,on the race track, lots of time is wasted shifting or over revving the car past it's TQ peak.
The trick to road racing is to have power when you need it, and how you need it, without having to shift. That's why the chevy LS series of engine is so competitive. Those damn LS7 engines pull from 1500rpm to nearly 7000 rpm stock! That's hard to beat.
Now, with lightweight FWD the car must have a long and very smooth TQ curve that gradually rises. The quick tq curve, that your thinking of, which works great for daily driving with close to stock HP levels, is not optimal at 4 or 5 times the factory HP/TQ levels. When you need to put down 4 or 5 times the TQ that the car was built to take, the TQ curve must be a very gradual incline.
When every second counts, and momentum is the name of the game, I need a very wide power curve with enough low end or mid range to tug the car straight from a slide, but enough top end power to blast past a supercar without shifting gears in the straights. That's why I need RPM. With my b6t car I was hitting 141mph on the main straight at my favorite track (Wildhorse Pass Main track.) In order to beat the cars I want to beat, I'll need to hit 180mph on that same stretch.
Furthermore, balancing the engine is not the issue with the BP (or any inline 4 cylinder). Though balancing is important, all the components of a BP can be perfectly balanced and the engine will still be harmonically unstable due to its internal dimensions. Luckily, I've seen what BMW did to make street car 4 cylinder engines into formula one engines. This is what I'm going to do to the BP.

[bhazard]

180 mph. Shut. Up.


You planning on caging the car and such?

[TominMO]

With my b6t car I was hitting 141mph on the main straight at my favorite track (Wildhorse Pass Main track.) In order to beat the cars I want to beat, I'll need to hit 180mph on that same stretch.

Luckily, I've seen what BMW did to make street car 4 cylinder engines into formula one engines. This is what I'm going to do to the BP.

Holy bat guano!

One question: will the short and narrow Festiva be adequately stable at 180 mph, even if driven by a top pro racer?

[sc72]

I'm in Des monies now with my 88 in a barn outside of Boone.
It lives next to an ISU tailgating bus and a swapped rwd old school Corolla. I see you're from pella. I got my pilots license there! Is there any Iowa meets anymore?

Unfortunately no, the last meet in Iowa was put on by the wife and I, no real interest so we did not go any further.

[sketchman]

Charlie said before the Festiva is stable at speed. Something about the shape creating drag behind it or something.

[Advancedynamix]

Holy bat guano!

One question: will the short and narrow Festiva be adequately stable at 180 mph, even if driven by a top pro racer?

180 might create some challenges. At 140 Tweak was still stable. I've had Tweak close to 160 a few times and the wind starts to do funny things. I'm pretty sure that 180 will require some drastic aero mods.
The shape of the Festiva is pretty much ideal for using a rear diffuser to promote down force. That steep and flat rear end is a great low pressure area. Using that to pull air from under the car should help stability.

[dliverance]

I couldn't imagine going 180 in a festiva. I did 170 in my FD and it felt like it was about to fly away.