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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 09-05-2007, 08:26 PM   #1
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Default performance upgrades

im wanting to uprage my performance. its a 95 series 1 with an m62 with a 2.3" pulley. what would be the next best step to take. my car has 154500 miles and runs perfect. where can i get 1.8 rockers and what parts can i interchange from other motors to work on my motor. ex.... maf,tb,injectors,ect....
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Old 09-05-2007, 10:19 PM   #2
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Change the 2.3" pulley out for a 2.5", then read this:

http://www.bonnevilleclub.com/forum/...=article&k=104

Once that'* taken care of, we'll start looking at things other than the TB (which you won't gain much from, and there is no 'suitable' replacement for), MAF (which will gain you nothing, you can't outflow it until you hit 400 hp), injectors (which you won't outflow until you hit 300-320 crank hp).

We'd be better off knowing what your budget is, and suggesting as much power as you can get for that, while you start setting aside a transmission fund. Adding hp to the Series 1 has an interesting side-effect. For every ONE horsepower you add, you will add about 1.5 ft/lbs of torque. This will end up being BRUTAL on the rest of your drivetrain in a very short period of time. You MUST set aside money for a solid trans rebuild with all the updates and a shift kit.
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Old 09-05-2007, 11:00 PM   #3
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i have an extra 500-600 a month i can spend. where should i start at wih performance other then the pulley.
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Old 09-05-2007, 11:04 PM   #4
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First, you need to pull your exhaust manifolds. You are pretty much guaranteed to have cracks in them, which is the common source of KR. The cracks are very small, and will need to be fixed properly.
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Old 09-05-2007, 11:07 PM   #5
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yeah i hear the leaks under the heat shield. im gonna weld them this week while im off. do i need to reinstall the heat shields
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Old 09-05-2007, 11:21 PM   #6
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YES. Reinstall the heatshields, and consider a ceramic coating when you have them off. NEVER use wrap.

The cracks can be VERY hard to find on the manifolds, and you MUST remove the heatshields to find them, including on the crossover. Remove all 3 heatshields, and put them back when you're done.

From a long time ago........ http://www.bonnevilleclub.com/forum/...ic.php?t=36232

And from not too long ago:
http://www.bonnevilleclub.com/forum/...=asc&start=420
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Old 09-05-2007, 11:26 PM   #7
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For the REST of the story, read here:

http://www.bonnevilleclub.com/forum/...ic.php?t=84960
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Old 09-05-2007, 11:27 PM   #8
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sorry i was flea-baying and forgot to refresh, so i was a lil behind.
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Old 09-05-2007, 11:28 PM   #9
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Easy to be behind with two topics about the same thing from the same person.

Let'* get it back on track in this one topic now.
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Old 09-05-2007, 11:41 PM   #10
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sorry about that. after i well the manifold and install a coat of silver ceramic paint and scann for KR, and install ngk TR55s with a new belt tentioner what the next step i should take will?
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