More power out of a 12a
11-29-2007, 12:35 AM
#1
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Join Date: Dec 2004
Posts: 40
Hello all,
I have a 12a with a good size street port and Weber 48IDA carb. I was told it should make around 180hp-200hp when we rebuilt it. I would like to get some more power out of it. What does everyone recommend?? Turbo, Fuel Injection, NOS?? I'm trying to keep it cost affective. Has anyone been told changing the pulleys out to a different size or something gets 8-10hp? Please help
I have a 12a with a good size street port and Weber 48IDA carb. I was told it should make around 180hp-200hp when we rebuilt it. I would like to get some more power out of it. What does everyone recommend?? Turbo, Fuel Injection, NOS?? I'm trying to keep it cost affective. Has anyone been told changing the pulleys out to a different size or something gets 8-10hp? Please help
11-29-2007, 12:51 AM
#2
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Join Date: May 2003
Location: watertown wisconsin
Posts: 1,331
underdrive pullies do add hp yes. you also can do a small bridge port if your goin to rebuild it anyways that will give you more power. also port the intake manifold runners and duct cold air into the carbs by using a closed off to the under hood elements air box
randy
randy
11-29-2007, 10:46 AM
#4
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Originally Posted by RONIN FC' post='888821' date='Nov 29 2007, 08:29 AM
Go Nitrous!
I dont think he has under hood temp issues.
I dont think he has under hood temp issues.
No temp issues. The motor is out in the open with a big oil cooler and radiator. What size shot of NOS?
11-29-2007, 03:31 PM
#5
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Location: watertown wisconsin
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not s temp issue but a true cold air box,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, we do it on the EP rx7s with webbers and it works well for giving that extra little bit of power. i was not saying anything about temp issues.
randy
randy
11-29-2007, 04:33 PM
#6
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Originally Posted by fc3sboy1' post='888835' date='Nov 29 2007, 01:31 PM
not s temp issue but a true cold air box,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, we do it on the EP rx7s with webbers and it works well for giving that extra little bit of power. i was not saying anything about temp issues.
randy
randy
12-03-2007, 10:59 AM
#9
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Originally Posted by Rub20B' post='889062' date='Dec 3 2007, 04:13 AM
What gain are achieveable with this when set up correctly?
I dont think anybody actualy went to a dyno after doing this to be able to give #s. But def. something you can feel.
12-03-2007, 12:00 PM
#10
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Originally Posted by RONIN FC' post='889091' date='Dec 3 2007, 08:59 AM
Response, reliability, cleaner burn, starts easier, runs better,....
I dont think anybody actualy went to a dyno after doing this to be able to give #s. But def. something you can feel.
I dont think anybody actualy went to a dyno after doing this to be able to give #s. But def. something you can feel.
This might sound dum, but what exactly is a direct fire ignition?