Puttin the new goodies on in about 2 weeks. Should i port?
Puttin the new goodies on in about 2 weeks. Should i port?
Just felt like taking some pictures of my new goodies and showin em here.
I got the #25'ers in the mail, and now i am just trying to find a good base. should i port the runners out? i have never done any porting, so what would be the best way? thanx.
I got the #25'ers in the mail, and now i am just trying to find a good base. should i port the runners out? i have never done any porting, so what would be the best way? thanx.
Junior Member
Joined: Aug 2003
Posts: 96
Likes: 0
From: Wisconsin
Car: 1987 Trans am
Engine: 350 TPI
Transmission: 700R4
I would port the runners to the gaskets, and the base and plenum also. Align the gasket to the runners and scribe out what has to be removed. Do the same with the rest of the parts. Take a dremel and start grinding, just take alittle bit off at a time.
Supreme Member
Joined: Jul 1999
Posts: 5,183
Likes: 42
From: Oakdale, Ca
Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
Stock 083's? My guess is your new intake will outflow the heads, as-is.
Edit:
Also, I see you don't have a new base?
IMO, just port if you're feeling lonely
Edit:
Also, I see you don't have a new base?
IMO, just port if you're feeling lonely
i found it on ebay, its a poslished plenum off an 88 iroc thats been ported out. the cover plate is polished aluminum too.
i cant wait to put these on this weekend.
i cant wait to put these on this weekend.
i know...thats what i planned. but my car died this morning, leaving me without a ride to work.
i am almost 100% sure it's the injectors, because i know i had atleast two leaky injectors, and the shop said one was barely spraying. I didn't have the $$ to get them all fixed cause it was before i started learning anything about the tpi.
the car starts, but doesn't stay running. If i give it gas, it revs fine, but it dies (or tries to) at idle. I am hoping my friend will bring over his compressor and then we might try to do some porting on the base with my roommates die.
i am almost 100% sure it's the injectors, because i know i had atleast two leaky injectors, and the shop said one was barely spraying. I didn't have the $$ to get them all fixed cause it was before i started learning anything about the tpi.

the car starts, but doesn't stay running. If i give it gas, it revs fine, but it dies (or tries to) at idle. I am hoping my friend will bring over his compressor and then we might try to do some porting on the base with my roommates die.
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Originally posted by jamesbob02
Did you buy those mystery #25's from SLP? Tell us how they work out for you.
Did you buy those mystery #25's from SLP? Tell us how they work out for you.
yay! so the edelbrock hi-flo base is mine. so i think i will wait untill i get the base before I fix my car. i don't want to have to take the entire intake apart twice. i am goin back to the track as soon as i get it running. i will post numbers for comparison. 
Stock TPI
vs.
58mm BBK Tb, SLP Runners, Ported/Siamesed Plenum, Edelbrock HiFlo Base

Stock TPI
vs.
58mm BBK Tb, SLP Runners, Ported/Siamesed Plenum, Edelbrock HiFlo Base
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