Ported Chevy 083 heads, the tpi project
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Re: Ported Chevy 083 heads, the tpi project
This is the one I'm really interested in, the 083 beads..I have a set waiting for some work.
But I'll wait till these are done and see what kind of power they make before I start hacking away on them.
But I'll wait till these are done and see what kind of power they make before I start hacking away on them.
Re: Ported Chevy 083 heads, the tpi project
These are what I run on the old work truck. 2.02/1.6 studs, guide plates, hydraulic roller springs. Makes an excellent high torque head. The chamber isn't as good as a vortec chamber but is worth working up.
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Re: Ported Chevy 083 heads, the tpi project
How much difference is there in flow and hp on the same cc port between oval and rectangular?
Erland
Erland
Re: Ported Chevy 083 heads, the tpi project
So what came of this? Curious what guys are able to get out of a TPI setup.
Re: Ported Chevy 083 heads, the tpi project
:I'm interested in how well the ported 083 L98 cylinder heads performed on the running engine.
Any feedback?
Any feedback?
Re: Ported Chevy 083 heads, the tpi project
I really miss carnut's threads.
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Re: Ported Chevy 083 heads, the tpi project
Not much to get out of a TPI deal N/A. I’ve had 7 or 8 of these things and been a member on TGO since the mid 90’s. I’ve watched numerous guys spend money to push these intakes as far as they will go. The stock stuff ports better than the vortec stuff. The Accel stuff is good. Super Ram is excellent and First Fuel Injection stuff is great. Usually 383’s with max effort ported and welded stuff will do 325-350rwhp and at 52-5500rpm give or take.
I’m a huge fan of thirdgens but I am on hiatus for a while. There’s more than a few knowledgeable guys on this board. Orr is one of them but I hadn’t seen him around in a while. Maybe he’ll chime in.
Anyway, this car prob put down 270-280rwhp if it was tuned well.
Re: Ported Chevy 083 heads, the tpi project
TPI just has too much working against it, runner length, plenum volume and the 180 turn with round tubes, the air gets in it's own way. I still want to mess with my own some more in the future and port another stock plenum to see if I can improve it a tad but it's the 180 runners I believe that are the real limit.
Channel About My diy Projects & Reviews https://www.youtube.com/c/BOOTdiy
I know as much as I can learn and try to keep an open mind to anything!
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I know as much as I can learn and try to keep an open mind to anything!
If I didn't overthink stuff I wouldn't be on speedtalk!
Re: Ported Chevy 083 heads, the tpi project
Dead? I am only 55 and not on any medications! Sheesh.
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Re: Ported Chevy 083 heads, the tpi project
I was not going to ask........... 57 here and helping my Uncle at 71 run his AA/S car this weekend.. Hope for a 6 second run or 3!! Our car is on the table for now..
GURU is only a name.
Adam
Adam
Re: Ported Chevy 083 heads, the tpi project
If one could get around 380hp out of a TPI 350 with mildly ported 113 heads in an endurance racing situation it would be great. Not gonna happen methinks.BOOT wrote: ↑Thu Apr 29, 2021 9:08 am TPI just has too much working against it, runner length, plenum volume and the 180 turn with round tubes, the air gets in it's own way. I still want to mess with my own some more in the future and port another stock plenum to see if I can improve it a tad but it's the 180 runners I believe that are the real limit.
From what I saw on a Holdener vid where he tested a L98 with TPI and then with a carb it does seem the long block may be a good starting point however.
Re: Ported Chevy 083 heads, the tpi project
I can only wish I was only 55. The pain starts in earnest after that. Nobody told us it would hurt to get old. Still better than the alternative. I didn't understand why someone would miss your comments if you were still around.
So much to do, so little time...
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Re: Ported Chevy 083 heads, the tpi project
Good to hear from you Carnut. 55 and no medication your doing well mate.
Re: Ported Chevy 083 heads, the tpi project
I miss charlie's comments because he hasn't been posting much for a while. Charlie has some of the best posts ever on this site.
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