Cfm rating of '86-'88 TPI?

[Caveman]

I'm clueless.

[Caddyman]

Re: Cfm rating of '86-'88 TPI?

350 or 305?

The 305 version is smaller internally, and won't flow nearly as much.
The 350 version is only good (stock) to around 425-450hp max (from what I've read), with a TON of torque down low, and even then, it took a "worked" combination to reach that level.

[Caveman]

Re: Cfm rating of '86-'88 TPI?

350 or 305?

The 305 version is smaller internally, and won't flow nearly as much.
The 350 version is only good (stock) to around 425-450hp max (from what I've read), with a TON of torque down low, and even then, it took a "worked" combination to reach that level.

All I have are parts in a box.... How can I tell the difference whether its a 305 or 350? And I thought the only difference between 305/350 TPIs was different injector ratings... (19lb/hr vs 22?)

I'm only shooting for 325ish hp, but I want to maximize torque, as it ain't goin' in any lightweight.
What's the best combo?

Also, I have an ECM from a '90 V-6 car... I think thats a MAP year ECM, not MAF? If I get the correct prom will it work?

[Mr4Speed]

Re: Cfm rating of '86-'88 TPI?

Only difference is the injectors. Power band is about 500 rpm lower on the 350's-all torque.

What part number is your ECM? The TPI ecm's are common to many other applications. Should work with the right memcal.

[Caveman]

Re: Cfm rating of '86-'88 TPI?

Only difference is the injectors. Power band is about 500 rpm lower on the 350's-all torque.

What part number is your ECM? The TPI ecm's are common to many other applications. Should work with the right memcal.

There's a bunch of numbers on the ecm... I'll try to put up a pic. I'll also restart this thread under a heading that actually shows what kinda help I need.