How to modify stock Throttle Body..
02-09-2003, 03:35 AM
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How to modify stock Throttle Body..
Hey all, I would like to know what the most common mod that can be done to the stock TB for improving flow... i've heard that some people polish it... are there other ways ? like porting it ???
i would like to do the mod at home , with typical tools...
of the home made mods, how much power increase should i expect ?
help !!!!
i would like to do the mod at home , with typical tools...
of the home made mods, how much power increase should i expect ?
help !!!!
02-09-2003, 04:34 AM
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Well, you can modify the TB to a maximum of 58mm, but then you have to get a 58mm butterfly valve, and I think some people have been having problems locating these.
I think someone was able to modify a TB from a DSM (60mm I think) with little effort to fit on our IM.
However, since the IM would still be restrictive, you won't gain much, if any power at all. You're going to have to match the IM to the bore of the TB.
What ever happened to your stang?
I think someone was able to modify a TB from a DSM (60mm I think) with little effort to fit on our IM.
However, since the IM would still be restrictive, you won't gain much, if any power at all. You're going to have to match the IM to the bore of the TB.
What ever happened to your stang?
02-09-2003, 05:03 AM
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I am currently selling it, you can find pics of it at my website, http://www.nitrousworld.org
its a quick one.. runs 13's on street tires with a BABY SOFT launch and full weight. The 1/4 mile run i did at the track was with the stock tailpipes (since then i have removed them and installed turn-down style muffler tips) and i've noticed a major improvement in power with that mod, specially top end power since this car has a big cam and ported heads, high flowing intake manifold and 70 mm tb. smile.gif
I wish my elantra could run numbers like that with such ease. lol
its a quick one.. runs 13's on street tires with a BABY SOFT launch and full weight. The 1/4 mile run i did at the track was with the stock tailpipes (since then i have removed them and installed turn-down style muffler tips) and i've noticed a major improvement in power with that mod, specially top end power since this car has a big cam and ported heads, high flowing intake manifold and 70 mm tb. smile.gif
I wish my elantra could run numbers like that with such ease. lol
02-09-2003, 10:03 AM
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well, i wouldn't recommend trying to port your tb, or anything, with home tools, unless you have the right equipment. just take it to a machine shop, and have them do it. i have the shark racing adjustable bbtb. the big purple one. i like it. the only problem i have is that the butterfly plate sticks to the bore after it's been sitting a while, so i have to give quick, hard tap to the gas pedal to get it unstuck. other than that, i think it's worth the money. 60mm and it's manufactured that way, no modifying stock ones.
02-10-2003, 05:27 AM
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Just FYI, if you are having trouble finding the butterfly plate, the stock Buick Grand National TB is 58mm also, if you can find an GN owner with a bigger TB take his old one, That is what i did anyway.
