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stock throttle body P&P tips

This is a discussion on stock throttle body P&P tips within the Firebird / WS6 forums, part of the Vehicle Specific category; I am fixing to be getting on my "free mods" list and wonder if anyone has tips on what to ...

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    stock throttle body P&P tips

    I am fixing to be getting on my "free mods" list and wonder if anyone has tips on what to us for the port/polish on the stock throttle body? what grid of sandpaper any pictures of a good solid P&P stock throttle body anyone have a link to?
    along with all the suspension mods I need to add, this "free mods" list is also on there to do. I need to install my msd spark plug wires and NGK spark plugs, so I figure I do it all in one shot.

    Any tips or suggestion would be nice,

    ASh

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    Junior Member 99ss405's Avatar
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    order lager tb .. not being a dick but you can grow into it

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    If you polish, stay the heck away from the area where the blade meets the body in the closed position or you will screw up your idle. Also, remember that there are water passages in the stock TB, so don't go real deep. Ensure that the throttle stop allows for WOT -- I had to grind ours back a touch to get there. Just don't go too far or you'll defeat the purpose.

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    Bmr offers a TB bypass?

    ASh

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    So what is a good stock replacement? I am keeping the stock ls6 intake on there for right now but it sounds like i be better just doing a aftermarket one.
    Brands? Sizes?
    Will i need adapter part?

    ASh

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    I just made my own bypass. Some sections of hose, a couple of clamps and a coated piece of brake line. Very easy to do.

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    Quote Originally Posted by pajeff02 View Post
    I just made my own bypass. Some sections of hose, a couple of clamps and a coated piece of brake line. Very easy to do.
    Do you have pictures? the BMR one is around $24 bucks shipped.

    ASh

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    Senior Member raynor139's Avatar
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    If you plan on upgrading the intake down the road to some thing with a 102mm opening or bigger the Nick Williams one is a nice piece. Fast makes one two and a couple other companies also. I'm not sure 100% sure if they will bolt up to stock intakes. If you don't plan on upgrading the intake I would just look into port and polishing the stock one.
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    Quote Originally Posted by raynor139 View Post
    If you plan on upgrading the intake down the road to some thing with a 102mm opening or bigger the Nick Williams one is a nice piece. Fast makes one two and a couple other companies also. I'm not sure 100% sure if they will bolt up to stock intakes. If you don't plan on upgrading the intake I would just look into port and polishing the stock one.
    No I'm keeping the LS6 one as of right now. what I may do is just smooth out the stock one and call it a day.

    ASh
    2002 auto T/A custom blue, Moser 9in rear end with 31 spline axle and 3.73 gears, Diablo Sport InTune, SLP LM1 catback, SLP lid & bellow, ram air free mod, eibach pro kit springs, bilstein hd shocks, bmr rear sway bar, bmr 2pt SFC bolt on, silver checker stripes 17x9.5 C5 Vette rims.

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    Senior Member raynor139's Avatar
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    Forgot to mention the Nick Williams comes in a 92 also. You can port the ls6 intake also and it will give you some benefit.

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    Quote Originally Posted by raynor139 View Post
    Forgot to mention the Nick Williams comes in a 92 also. You can port the ls6 intake also and it will give you some benefit.
    That might be what I do with stock ls6 intake
    92mm TB would not need dyno tune?

    ASh

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    Here are some pics:




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    Thanks for the pictures

    ASh

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    Under the loom in the first pic, you can see the union where the size of the brake tubing changes.

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    Senior Member raynor139's Avatar
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    To get the most out of it a tune will be a good idea. Doubt just a change in throttle body size will need a tune but I'm no tuning expert.

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    As engine fueling is based in part upon feedback from the O2 senders (except in open loop and at WOT), I doubt there will be a significant enough difference to justify a re-tune only for a ported T/B.

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    Thanks guys, I'll get it dyno tuned when I do heads and cams

    ASh

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    I went ahead and grab the BMR TB bypass for $19, could have went and picked up stuff, but order sfc from BMR so just put that in also on my order.

    I also was talking with a shop about the P&P of the stock throttle body and since I'm really not changing the intake for right now then it really wouldn't be worth the trouble. Again I'm not in to just doing stuff if it really isn't going to benefit me in the long run, saves myself time and effort, if anything Ill just spend a little cash and get a aftermarket one down the road.

    ASh

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    Sounds like a plan. Every little thing helps and it all adds up - but for the time and effort you would put into a stock T/B, going aftermarket down the road certainly works.

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    That is what I was thinking

    ASh

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