85mm ported and polished Throttle body?
#1
On The Tree
Thread Starter
Join Date: Dec 2003
Location: McAllen, TX
Posts: 104
Likes: 0
Received 0 Likes
on
0 Posts
85mm ported and polished Throttle body?
I am looking into trading my stock throttle body and $150 for a machined ported and polished stock throttle body. Is this too much?... the guy i plan on trading with says he paid $320 and gave up his stock throttle body for it. It is ported to 85mm and says it can shave .10-.15 off my 1/4 mile time. Anybody ported their throttle body that can share some info with me...and also, Is this too much?
#3
On The Tree
Thread Starter
Join Date: Dec 2003
Location: McAllen, TX
Posts: 104
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by WILWAXU
Saw that TB on eBay... looks a like a hack job IMO...
#5
TECH Fanatic
Originally Posted by Nasty N8
It is imposible to get the stock TB to 85mm it will come through the casting. The largest you need to go is 78mm thats the size of the opening on the intake.
Nate
Nate
You probably meant the LSX 78mm intake. Actually, the opening on them is about 77+ a little. Like the stock one, the openings are a little out of round (a few tenths of a mm anyway). The 90 checks at 90.
You can bore a stock TB to 78 mm, but you'll be very near the shaft bearings. You'll also "strike air" in a few places, or have paper thin walls in spots. Some of it depends on which supplier did the casting. I've never seen one bored to 78 that didn't need holes filled.
#6
TECH Enthusiast
Join Date: Nov 2002
Location: Murrells Inlet, SC
Posts: 594
Likes: 0
Received 0 Likes
on
0 Posts
I got a quote from a shop for porting and polishing my throttle body and they said it would be less than $100.00. So I would venture to say $150 is a bit high.
Originally Posted by TRAGIC
I am looking into trading my stock throttle body and $150 for a machined ported and polished stock throttle body. Is this too much?... the guy i plan on trading with says he paid $320 and gave up his stock throttle body for it. It is ported to 85mm and says it can shave .10-.15 off my 1/4 mile time. Anybody ported their throttle body that can share some info with me...and also, Is this too much?