ASP will bore it for you. They did mine. I just got one form the junk yard and had it bored. Ran a total of $170 plus I still have my stock one. No my times didnt improve but with the Zexel I get a lot more wheel hop plus that day my clutch screwed up. Then 2 days later.... Clutch fell apart driving down the road. So I know I will have a faster time if everything works out. No the TB wont give you 20. more like 5-8. You get better throttle response and higher top end with more noise. But the mpg will suffer.

 

so when they bored out the TB, did they put a new butterfly in for you? wouldnt there be a gap around the old one when it's bored? and that gap would make the idle much faster because more air is entering?

 

where did you get the new butterfly valve. cause if you bored it oud you'd need a new one

 

20hp... that is just f**king ridiculous..... you cant even gain those types of numbers from a turbocharged car. dude... for you to even clain those numbers you need to back it by having a dyno sheet on hand... my guess is you gain 2 hp at the flywheel and some damn throttle response. Before I beleive you I want a true dyno tested result. And why do you need a machine shop to "bore" out a throttle body. just spend some cash, buy an electric dye grinder and do it yourself. unless you have a badass air compressor, get an air dye grinder. then... after that money is spent you can port out other goodies on your engine.

 

Yes they put a whole new butterfly in it. They send it back cleaned of all carbon and brand new butterfly with everything attached. It looks like it came that way except the butterfly is a gold color now. On our stock TB the biiggest you can go is 57.

 

does anyone sell one out right without you having to supply a core?

 

Mantapart did...but they said I was the last.

Try E-mailing them.....if you dont get a reply, then you know why

 

erron, so are you being serious about the gains???

 

Yeah, im pretty sure the gain was at least 20hp....but I also think the gains will differ from each other, because the different needs for air.

It really is much more fun to drive

I wish i could spend the money to do a dyno with both TB's...but its just too much for me to do
70 bucks an hour ...and it takes like 10 min to strap down

 

THAT BITES.

DID YOU GET A LARGER BUTTERFLY ?

 

i cant even find a freakin throttle body to have machined. no at the junk yards. too much at the dealer. :gunfire:

 

cheapest one I've seen so far is $310 stock. I don't remember where but I'll let you know when I get home cuz I have a link to it there.

 

what exactly do they do when they bore your tb?

 

you can get one from the dealer for 131.00

 

check www.car-parts.com i found some in missouri for $75 with sensors......... and the 4.3 liter throttle bodys are the same..... dont buy one brand new

 

75 bucks is a GREAT deal...is that used/remanufactured or new?

 

car-parts is a nationwide junkyard parts database. sellect what state you're in and it gives you a list of yards that have the part you're looking for, the price, and the yards address/number.

 

more than likely used. the good thing about car-part.com is that you can get in touch with the seller(be it junkyard, personal, whomever) and you can talk to them or go to the junkyard to see the part. my friend is doing this with a turbo 280zx motor tommorrow. its a good way to find good parts. its worth taking a look around to find a thorttle body... seems like it could save a few bucks seeing the aforementioned prices on this thread...

 

There are other services like that I frequently use uneedapart They will run a free search and sellers will contact you via email.

 

By the way I haven't yet found any real scpecs but speaking from experience I doubt our 2.2's draw much more that 300 cfm stock.
Sevearl mods can drastically change that. Headers,cam,pistons,and intake make the biggest changes in possible cfm. Porting the head makes a difference to.

 

am i reading this right is the 4.3 tb the same as the 2.2?

 

am i reading this right is the 4.3 tb the same as the 2.2?

Good question!!!!! Try calling a dealer ship for the part numbers for both and see if they are the same.

 

the way I read it was the 2.2L TB costs a certain price and the 4.3L is the same price.

check www.car-parts.com i found some in missouri for $75 with sensors......... and the 4.3 liter throttle bodys are the same..... dont buy one brand new

 

have you done this mustard???

 

i thought it was cheaper than buying a new and having it done.. BUT this makes you lose torque, so i would only get it with some type of forced induction.. nitrous for me!

so did you lose torque erronisme???