TPI differences 85-92
Thread Starter
Team Owner
Joined: May 2002
Posts: 24,337
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
TPI differences 85-92
Anyone have this article handy? I'm trying to identify an F-body TPI setup, dunno what year it is from 85-88 (or if it matters)
Also trying to figure out if a MAF tpi can be easily converted to MAP/speed density. I've never even seen a map sensor or plenum.
Also trying to figure out if a MAF tpi can be easily converted to MAP/speed density. I've never even seen a map sensor or plenum.
Last edited by CentralCoaster; Dec 27, 2005 at 10:37 PM.
Race Director
Joined: Aug 2000
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Cruise-In II Veteran
Hey CC,the F cars and the Vette were the same with the cold start injector until 89 when they did away with that.I do believe the F cars intake manifold bolt pattern changed in the middle bolts,but not sure what year they did that.Thats why the aftermarket TPI manifold bases have a weird looking central bolt hole,elognated if thats the word,to allow both style intake-head bolting set up for either car.
The map sensor would be on the outside of the plenum.The vacuum hose routing was a bit different but not much from the MAF set up.
I remember a 91 MAP system on the vette,the MAP sensor was right at the back of the plenum where the 2 vacuum ports are at.Passenger side that is.
Also,if it helps, www.thirdgen.org has alot of info there as well.
It seems theres more knowledgeable TPI people there than here.
The map sensor would be on the outside of the plenum.The vacuum hose routing was a bit different but not much from the MAF set up.
I remember a 91 MAP system on the vette,the MAP sensor was right at the back of the plenum where the 2 vacuum ports are at.Passenger side that is.
Also,if it helps, www.thirdgen.org has alot of info there as well.
It seems theres more knowledgeable TPI people there than here.
Team Owner
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From: Freedom is never more than one generation away from extinction.
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Originally Posted by CentralCoaster
Anyone have this article handy? I'm trying to identify an F-body TPI setup, dunno what year it is from 85-88 (or if it matters)Also trying to figure out if a MAF tpi can be easily converted to MAP/speed density. I've never even seen a map sensor or plenum.
Le Mans Master
Joined: Jan 2003
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From: Santa Maria CA
Now can you do me a favor and come down and do some wrenching? 
