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These are a more traditional 5-spoke rim (than the Saw Blades).

Used on later ZR1s, the 1996 GrandSport and Collectors Edition....
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Re: TPI vs. LT1 or miniram dyno curve?

Subject: Re: TPI vs. LT1 or miniram dyno curve?
by BeachBum on 2009/1/9 20:58:11

Quote:

CentralCoaster wrote:
Does anybody have back to back comparisons on either of these?

I recall the low end of a TPI and LT1 being nearly identical, yet everyone seems to think the TPI is superior there. I'm not convinced.



The long tube TPI is superior in off-idle torque than the LT-1..... it'll make literally 40 more ftlbs down at 2500-3000 rpm...... but it sacrifices to much rpm to do it..... hence the LT-1 is drastically superior to the TPI long tube runner set-ups in my opinion.

For stock motors, the actual peaks are probably similar at close to 350 or whatever, but they occur 1000 rpm apart.

The Superram is a different animal though, it'll give you an extra 500-1000 rpm over the stock TPI....and yet only give away a little torque off-idle, but makes up for it and then some by 4000 rpm.
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