What about these mods?
Thread Starter
Instructor
Joined: Sep 2002
Posts: 137
Likes: 0
From: Toa Baja Puerto Rico
What about these mods?
First, let me list the "freebie mods" my otherwise stock 1987 Coupe (auto tranny, 3.07 rear end gears) has: KN filter with cut-out lid, no pre cats, bypassed TB coolant, TB airfoil, Hypertech Thermomaster chip, 160 degrees stat, manual fans switch, cut back spark plug electrodes.
What I intend to do: ported plenum, SLP's high-flow cast aluminum TPI intake runners (siamesed), Big Mouth Tpi Base Intake Manifold, rear Y-pipe with crossover pipe and Monza or Dynomax mufflers. Also, an adjustable fuel pressure regulator. Maybe, in the near future, 1.6 roller rockers.
I definitely do not want to go into the engine at this time for financial reasons.
What can I expect from these mods? I do not expect to break any speed records and this car is my daily driver so it has to remain streetable and mantain decent mileage.
What do you think of these mods? NOTE: I intend to keep the stock 48 mm Throttle Body.
What I intend to do: ported plenum, SLP's high-flow cast aluminum TPI intake runners (siamesed), Big Mouth Tpi Base Intake Manifold, rear Y-pipe with crossover pipe and Monza or Dynomax mufflers. Also, an adjustable fuel pressure regulator. Maybe, in the near future, 1.6 roller rockers.
I definitely do not want to go into the engine at this time for financial reasons.
What can I expect from these mods? I do not expect to break any speed records and this car is my daily driver so it has to remain streetable and mantain decent mileage.
What do you think of these mods? NOTE: I intend to keep the stock 48 mm Throttle Body.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: What about these mods? (alfonso gomez)
The siamese runners will give you some more top end at the expense of a little low end loss.
You should get some noticible (at least in the 1/4 mile) gains from those mods.
For a real boost to driving pleasure consider a 2,000rpm TC and a Trans Go shift kit. The TC will overcome any low end losses from the siamese runners and the shift kit will make driving a lot more fun. Even at moderate throttle I get a nice chirp on the 1-2 shift; in cool weather she even wags the tail on the 1-2 shift.
I have similar mods and get maybe a little better mileage on the highway.
You should get some noticible (at least in the 1/4 mile) gains from those mods.
For a real boost to driving pleasure consider a 2,000rpm TC and a Trans Go shift kit. The TC will overcome any low end losses from the siamese runners and the shift kit will make driving a lot more fun. Even at moderate throttle I get a nice chirp on the 1-2 shift; in cool weather she even wags the tail on the 1-2 shift.
I have similar mods and get maybe a little better mileage on the highway.
Racer
Joined: Sep 2003
Posts: 260
Likes: 0
From: Indianapolis IN
Re: What about these mods? (65Z01)
some more freebies ----
bump up the timing to 8 degrees (for starters)
remove the freesbie
move the IAT sensor :smash:
Remove the screens and fins from your MAF
Also, a Servo kit is much cheaper than shift kit, and you can easily install it yourself. It will also make the shifts much more firm. If you want even harder shifts, you can always add a shift kit later.
I've read that a 2600 9" TC will drop 3 tenths off your 1/4 and still does fine for everday driving. My stock TC will stall to 2000rpm.
I agree with Headers. (Summit has long tubes for $120)
Also, True dual 2.5 exhaust (local muffler shop here did mine for $220)
X-pipe (magnaflow x-pipes off ebay for $65)
Servo Shift kit ($70)
March Power AMP pulley set ( 3 pulleys w/Alternator overdrive to retain stock
charging-- ($130)
It's a never ending story :)
bump up the timing to 8 degrees (for starters)
remove the freesbie
move the IAT sensor :smash:
Remove the screens and fins from your MAF
Also, a Servo kit is much cheaper than shift kit, and you can easily install it yourself. It will also make the shifts much more firm. If you want even harder shifts, you can always add a shift kit later.
I've read that a 2600 9" TC will drop 3 tenths off your 1/4 and still does fine for everday driving. My stock TC will stall to 2000rpm.
I agree with Headers. (Summit has long tubes for $120)
Also, True dual 2.5 exhaust (local muffler shop here did mine for $220)
X-pipe (magnaflow x-pipes off ebay for $65)
Servo Shift kit ($70)
March Power AMP pulley set ( 3 pulleys w/Alternator overdrive to retain stock
charging-- ($130)
It's a never ending story :)
Racer
Joined: Sep 2003
Posts: 260
Likes: 0
From: Indianapolis IN
Re: What about these mods? (1990CORVETTE)
It's easy money..
Just disconnect the brown/black striped wire. Now with the timing light you will see the initial timing at 6 degrees. Bump it up to 8 degrees. Hook the wire back up and your finished. You can keep bumping up the timing until you set off the knock sensor, and then set it back a little. I've read that some have run 9-11 degrees.
It made a noticable difference for me. I've read a few articles that said that the car went from spinning the tires to smoking the tires after bumping up the timing.
Just disconnect the brown/black striped wire. Now with the timing light you will see the initial timing at 6 degrees. Bump it up to 8 degrees. Hook the wire back up and your finished. You can keep bumping up the timing until you set off the knock sensor, and then set it back a little. I've read that some have run 9-11 degrees.
It made a noticable difference for me. I've read a few articles that said that the car went from spinning the tires to smoking the tires after bumping up the timing.
