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Bumpstop Mod: my first try at writing an install

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Old Aug 12, 2006 | 09:24 PM
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Bump stop mod and porting the tb is two different thing.
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Old Aug 12, 2006 | 09:31 PM
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So wich is the better mod to do.And how much of a gain would you see with the Bump Stop Mod hp/1/4 mile times?
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Old Aug 12, 2006 | 11:27 PM
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Originally Posted by 02BEAST
So wich is the better mod to do.And how much of a gain would you see with the Bump Stop Mod hp/1/4 mile times?
Bump stop opens up the blade more to 90 degrees=better throttle response. P&P TB will give your TB a true 78 mm size= been proven to gain 7-10rwhp.

Should do both.
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Old Aug 13, 2006 | 06:52 AM
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I'm sorry but what is P&P?
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Old Aug 24, 2006 | 04:00 PM
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Originally Posted by 02BEAST
I'm sorry but what is P&P?
Ported and Polished.
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Old Aug 27, 2006 | 05:38 PM
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Does anyone have a multimeter I could borrow? I'd pay for shipping both ways.
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Old Aug 27, 2006 | 08:53 PM
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PewterPower,

it seems that there are differnt reading form the actaully TB when you push it all the way back than from the gas pedal.. So can you take the slack out of the gas pedal to get a true reading.. as close to 4.71v???

and do you have any pics of where you put the spacers so that when you floor it with the pedal it reaches the bump stop

thanks
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Old Aug 27, 2006 | 09:05 PM
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Originally Posted by Ahmadi6490
Does anyone have a multimeter I could borrow? I'd pay for shipping both ways.
For the cost of shipping you could find one at Walmart, Radio Shack etc.
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Old Aug 27, 2006 | 09:53 PM
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Just went and looked at my bbk 80mm throttle body and it doesnt even open close to 90* and i plugged in the old voltmeter and only registered 4.14 volts with the t/b wide open. So tomorrow i will be grinding down the bump stop. Thanks for the write-up.
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Old Aug 27, 2006 | 10:46 PM
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What year is the car in the bump stop mod pics???? Good writeup by the way
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Old Aug 27, 2006 | 10:46 PM
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nice write up i am thinking of doing this mod myself
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Old Aug 28, 2006 | 12:02 AM
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awesome write up def gonna give it a try
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Old Aug 29, 2006 | 09:04 AM
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Awsome right up, do you think I could do this to my lt1 base car?
-Thanks Brandon
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Old Aug 29, 2006 | 04:40 PM
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Ok so i tried to grind it and went through like 8 grinding stones. i think i just bought some cheap ones. I got them at the local hardware store. What did you guys use to grind down the bump stop. I had to stop at 4.49 volts because i ran out of stones.
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Old Sep 6, 2006 | 10:35 PM
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This thread is still going strong!!! Glad to see so many are happy with the mod, and the write up.
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Old Sep 6, 2006 | 10:46 PM
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Originally Posted by Pewterpower
This thread is still going strong!!! Glad to see so many are happy with the mod, and the write up.

lol i did mine last sat. stock was at 4.43V i took it to 4.67V.. again great write up thanks!
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Old Sep 7, 2006 | 12:29 AM
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Did mine, stock was 4.31, went to 4.67. Yes I can feel the difference.
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Old Sep 7, 2006 | 01:56 PM
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Originally Posted by LS1T/A4
Did mine, stock was 4.31, went to 4.67. Yes I can feel the difference.

i can feel it more on top end more than anything
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Old Sep 7, 2006 | 03:25 PM
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This may be a stupid question, but what did you have the volometer set to? Mine has like 3 different settings, and then like an auto detect one.
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Old Sep 7, 2006 | 04:17 PM
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Originally Posted by WhiteStripes
This may be a stupid question, but what did you have the volometer set to? Mine has like 3 different settings, and then like an auto detect one.

set it to 20 i belive on the voltmeter.. That is what i did
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