I've never looked into turboing a 3800 so someone school me, where is the powerband on a pt61 and where is it on a t67?
From what I've learned about turbos, I think it would take a few extra supporting mods to get the potential of a 67.
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05-28-2013
I've never looked into turboing a 3800 so someone school me, where is the powerband on a pt61 and where is it on a t67?
From what I've learned about turbos, I think it would take a few extra supporting mods to get the potential of a 67.
Originally Posted by W-Body Store
05-28-2013
power band depends on cam and head choice, smaller turbos with a smaller ar spool faster than bigger turbos with a larger ar, you can have a smaller turbo with a huge ar and it will spool slow as ****, there is alot more in making a good running turbo set up than just slapping any old turbo on a car, thats why alot of people go with turbo kits the turbos are sized properly for what your going for, my t67 spools up in the 3500rpm range but alot of spool depends on your exhaust set up like headers and down pipe size and how restrictive your cat back is or if your even running a cat back
05-28-2013
This.
A pt61 will come in around 2500-3000 and make power throughout the entire rpm range. A T67 won't make power until 3500-4000.
People get caught up in dyno numbers and not actual "usable power". Making power from low rpm to high rpm is best unless you're building a dedicated drag car. Do you really want to limp around town with basically n/a Grand Prix until you can get that turbo spooled in your upper rpm range?
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