305 Tuned Port
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Pro
Joined: Jan 2005
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From: Denver Colorado
305 Tuned Port
I asked in the f body section and no one answered my question, so my question is what is the difference between the 305 tuned port in an 86 T/A and the 350 in the corvette?
Burning Brakes
Joined: Mar 2005
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well for 1 thing,the 305's used 19lb injectors,compared to 22 for the corvette.The MAF is also slightly differently calibrated.EGR passage on the intake manifold is different with 87 up aluminum head vettes compared to TPI T/A's which all had cast iron.There are several differences throughout the years,what are yo trying to do?
Drifting
Joined: Mar 2005
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From: GA
190 HP for the 305, 230 for the 350 (250+ in later years) 290 ft/lbs torque for the 305, 330 for the 350. All sensors were interchangeable from the 350 to 305 (including MAF, yes the same sensor) All intak tract parts interchange as well, ie manifold, runners, throttlebody, and I believe even the distributor (86 was the last year for the large cap HEI on F bodies)
Burning Brakes
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Originally Posted by Morley
190 HP for the 305, 230 for the 350 (250+ in later years) 290 ft/lbs torque for the 305, 330 for the 350. All sensors were interchangeable from the 350 to 305 (including MAF, yes the same sensor) All intak tract parts interchange as well, ie manifold, runners, throttlebody, and I believe even the distributor (86 was the last year for the large cap HEI on F bodies)
Last edited by vette&f-bod lover; Jul 9, 2005 at 06:45 PM.
Drifting
Joined: Mar 2005
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From: GA
Originally Posted by vette&f-bod lover
well after reading Mike Knell's Chevrolet TPI &TBI swapping the info I stated is correct,(I dont have it handy though)but where do you get yours from?
1986 same, same
Last edited by Morley; Jul 9, 2005 at 06:58 PM.
Thread Starter
Pro
Joined: Jan 2005
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From: Denver Colorado
Originally Posted by vette&f-bod lover
well for 1 thing,the 305's used 19lb injectors,compared to 22 for the corvette.The MAF is also slightly differently calibrated.EGR passage on the intake manifold is different with 87 up aluminum head vettes compared to TPI T/A's which all had cast iron.There are several differences throughout the years,what are yo trying to do?
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From: SE NY
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I have an '86 IROC and an '88 Vette and, depending on the year of your GF's F-body, you need to use caution when thinking of swapping intake parts. The EGR is a major difference as well as some plenum to TB changes over the years.
One of the mods used by the 3rd Gen F-body guys is to install the #113 Vette heads. This upgrade requires going to Vette intake base with it's external EGR system as well as possibly some exhuast mods.
However, indeed the MAF is swappable as I now run the OEM MAF from the IROC in the Vette.
One of the mods used by the 3rd Gen F-body guys is to install the #113 Vette heads. This upgrade requires going to Vette intake base with it's external EGR system as well as possibly some exhuast mods.
However, indeed the MAF is swappable as I now run the OEM MAF from the IROC in the Vette.
Burning Brakes
Joined: Mar 2005
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Originally Posted by 65Z01
However, indeed the MAF is swappable as I now run the OEM MAF from the IROC in the Vette.
