i need some help with my 86 305 TPI... i guese G.M. forgot that Camaros were soposed to go fast in 1986. i have K&N filters, SLP runners, and Hooker cat-back. here are what i whant to do... Hooker super-comp long tubes, off road y-pipe, Detroit Truetrac limited slip.
is their any valve train mods like 1.6 rods with lt1 cam, pleas help me?
i don't what to do too much, just enough for high 13s, because i have a 350 block waiting to be a 383 with a t-5 and 12-bolt. thats for next winter thoe.
is their any valve train mods like 1.6 rods with lt1 cam, pleas help me?
i don't what to do too much, just enough for high 13s, because i have a 350 block waiting to be a 383 with a t-5 and 12-bolt. thats for next winter thoe.
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ThirdGenFire
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Apr 17, 2011
- Join DateDec 2001
- LocationEl Paso, Texas
- Posts:620
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- Car2000 Trans Am and a 85 Iroc-Z
- EngineThe Mighty LS1& 305 just beat meTPI
- Transmission4L60E and 700R4
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Headers will help big time, the posi with a 3.42 gear set is the way to go. Port the intake manifold, port the walls behind the TB, new tires, suspension mods. I am right there I need some traction though. 13 second will not let me in the door. lol
Its going to be hard to break in but do the right mods and you can. Ohh and get a AFPR and a custom chip burnt.
Its going to be hard to break in but do the right mods and you can. Ohh and get a AFPR and a custom chip burnt.
Senior Member
The best bang for the buck is underdrive pulleys and an adjustable FPR. I would stick to stuff that you are going to use on the other motor. Headers are a big plus.
Supreme Member
Here are my mods and results on an 1988 305 TPI car.
With 88,000 miles and totally stock the car ran a 16.2 in the 1/4 mile.
1. MSD 6A ingition with Accel coil and MSD wires.
2. Cut out the air boxs, SLP airfoil. 160 theromstat.
3. Shift kit in the trans, Adjustable full pressue regularator and Jet stage II over the counter chip.
4. Hand ported the throttle body and plenum a little.
5. 3.73 rearend gear. (2.73 was the stock one)
6. hypertech fan control switch
7. Headmen 1 5/8 headers with no cats and flowmaster muffler
8. NOS nitrous wet kit 5151, 150 shot.
The car now runs 14.95 on motor and 13.58 on the nitrous 150 shot. Ran 13.8 on the 100 shot. The best mods I did was the rearend gear (got 6 tenths with that mod) and headers and exhaust (got 3 tenths on that one) and the MSD ing. and fan switch (got a 2 tenths on that one). And off course the nitrous kit was good for over a second.
Hope that helps and the first thing I would change is the rearend gear. I have never lifted a valve cover off the car and motor it self is untouched.
With 88,000 miles and totally stock the car ran a 16.2 in the 1/4 mile.
1. MSD 6A ingition with Accel coil and MSD wires.
2. Cut out the air boxs, SLP airfoil. 160 theromstat.
3. Shift kit in the trans, Adjustable full pressue regularator and Jet stage II over the counter chip.
4. Hand ported the throttle body and plenum a little.
5. 3.73 rearend gear. (2.73 was the stock one)
6. hypertech fan control switch
7. Headmen 1 5/8 headers with no cats and flowmaster muffler
8. NOS nitrous wet kit 5151, 150 shot.
The car now runs 14.95 on motor and 13.58 on the nitrous 150 shot. Ran 13.8 on the 100 shot. The best mods I did was the rearend gear (got 6 tenths with that mod) and headers and exhaust (got 3 tenths on that one) and the MSD ing. and fan switch (got a 2 tenths on that one). And off course the nitrous kit was good for over a second.
Hope that helps and the first thing I would change is the rearend gear. I have never lifted a valve cover off the car and motor it self is untouched.