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Originally Posted by TurboXS_Nathan
What you want is a supercharger or a larger displacement motor. You will fail trying to make a turbocharged 2zz something that it is not. All respect to Hass and forced fed, but I think this motor will make more HP on less boost and be much more drivable at the track with the proper turbocharger.
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None taken. I just don't agree that the 28RS is not a "proper" turbo. It's not like I havn't built GT35R Mitsu's or GT30R Nissan's etc etc. I have. Hell, we are about to boost a current generation Viper with probably twin GT3071's.
I think you might be surprised at how you find the 2ZZGE responds to larger turbos. I didn't pick the 28RS because I didn't know any better. I found it was the best turbo that could support 325whp comfortably and still offer excellent throttle response and boost response on the 2ZZGE, and I don't mean spool RPM.
There is nothing like squeezing on the throttle 25-50% at 3500-4500rpm in traffic and having the car just squirt forward right away with the turbo happily singing away and increasing the torque by a lot. It makes the car a joy to drive and the power delivery very predictable.
On FWD cars in road race situations, I would go the opposite route. The larger turbo cars have always been easier to drive as the boost comes up much more slowly and doesn't blow the tires off while in mid turn.
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In the end, I am going my own way and building my Elise as I want to build it. I think others are missing out by not thinking outside the box, but it is their right. Time will tell who is right.
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With all due respect I don't think it's a matter of right or wrong as much as it's a matter of preference.
