What is a full bolt-on LT1?
What is a full bolt-on LT1? What is a full bolt-on lt1 constist of? Seems like everything is sucks to some or awesome to others. So what works? What makes the power as far as bolt-ons go?
Example: Underdrive pulley: Seen on here people gain .1 et .1 mph and heard dead battery or gained nothing.
I just don't want to waste money in the wrong places. Is a cai,headers,exhaust it?
Example: Underdrive pulley: Seen on here people gain .1 et .1 mph and heard dead battery or gained nothing.
I just don't want to waste money in the wrong places. Is a cai,headers,exhaust it?
Full boltons would consisted of a full exhaust (LT headers, Catback or true duals), CAI, underdrive pulley, 52 or 58 MM TB, TB bypass and 1.6/1 RRs.
Now as for what works, you will always gain with LT Headers (I prefer Pacesetters), a good catback (magnaflow, SLP loudmouth, basically anything but Flowmaster) and a good CAI (Moroso seems to be the best.
Now as for what works, you will always gain with LT Headers (I prefer Pacesetters), a good catback (magnaflow, SLP loudmouth, basically anything but Flowmaster) and a good CAI (Moroso seems to be the best.
A 58mm TB on our cars is such overkill...you won't need that big unless you get a lot more power. I also don't consider the valvetrain as a simple bolt on. You also didn't mention gears, torque converter if auto, sticky tires. A TBB isn't a bolt on, it's a free mod 
Most CAI companies give you about the same gains. Look into LPE, Moroso, K&N etc. I've never used an underdrive pulley but I hear they are pointless. Put one in a Cobra and it will wake it up.
Most CAI companies give you about the same gains. Look into LPE, Moroso, K&N etc. I've never used an underdrive pulley but I hear they are pointless. Put one in a Cobra and it will wake it up.
I've never used an underdrive pulley but I hear they are pointless. Put one in a Cobra and it will wake it up.
Originally Posted by 98SuperSport
First off there are more than one pulley, the one you seem to be talking about is the crank pulley, and on a Cobra the pulley that everyone talks about is the pulley that the supercharger runs off of. On 6-speeds you will gain 7-12 whp with an underdrive crank pulley, not huge or extremely noticable, but if you can find one for $50 it may be worth it if you install yourself. You will not affect your battery if you only buy the crank pulley, it's the alternator and other underdriven accessory pulleys that may result in that.
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Originally Posted by blind527
A 58mm TB on our cars is such overkill...you won't need that big unless you get a lot more power. I also don't consider the valvetrain as a simple bolt on. You also didn't mention gears, torque converter if auto, sticky tires. A TBB isn't a bolt on, it's a free mod Most CAI companies give you about the same gains. Look into LPE, Moroso, K&N etc. I've never used an underdrive pulley but I hear they are pointless. Put one in a Cobra and it will wake it up.
Most CAI companies give you about the same gains. Look into LPE, Moroso, K&N etc. I've never used an underdrive pulley but I hear they are pointless. Put one in a Cobra and it will wake it up.He said FULL BOLTON and RRs are considered part of that equation. As far at the TBB, you add a component to the engine and thus I consider it a bolton but call it what you will
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TECH Junkie
Joined: Nov 2003
Posts: 3,265
Likes: 1
From: CHITOWN
Dyno tuned or Ecu flash or some kind.
Long tubes.
Ypipe.
catback.
intake.
Mass(dont bother).
Throttle body(just port yours).
1.6 rocker arms.
convertor.
gear.
Shift kit.
Pullys.
Its your basic performance up grades, mean I have a fullbolton car. You have all all of them on your car.
Long tubes.
Ypipe.
catback.
intake.
Mass(dont bother).
Throttle body(just port yours).
1.6 rocker arms.
convertor.
gear.
Shift kit.
Pullys.
Its your basic performance up grades, mean I have a fullbolton car. You have all all of them on your car.
Don't waste your money on a throttle body. The stock one is good for low tens/high nines in the 1/4.
1. Long tubes.
2. Gears and tires.
3. Computer mods or DFI.
4. Shocks and an air bag.
5. Converter.
6. Weight reductions.
7. Frame connectors and lower control arms.
Good Luck,
Daren
1. Long tubes.
2. Gears and tires.
3. Computer mods or DFI.
4. Shocks and an air bag.
5. Converter.
6. Weight reductions.
7. Frame connectors and lower control arms.
Good Luck,
Daren
TECH Apprentice
Joined: Jul 2004
Posts: 347
Likes: 0
Originally Posted by 98SuperSport
... On 6-speeds you will gain 7-12 whp with an underdrive crank pulley, not huge or extremely noticable, but if you can find one for $50 it may be worth it if you install yourself. You will not affect your battery if you only buy the crank pulley, it's the alternator and other underdriven accessory pulleys that may result in that.
As for using only the crank pulley - you are WRONG. The crank pulley is smaller, and lighter. Both taking less energy to spin. The smaller pulley also turns the belt slower - slowing down all your accessories (cough :underdrive: cough). This WILL affect your alternator charging -maybe not enough to matter, but it will affect it. The alternator pulley is an OVERDRIVE pulley. It spins the alternator faster inorder to make up for the slower moving belt. This compensates for what loss in amperage you would have had if you only used the crank pulley.
If you do pulleys, do alternator AND crank.
Originally Posted by chevy42083
WOW, that would be an awesome gain - I doubt it, but you should see some gain. Maybe I'm just skeptical. I wouldn't expect that much gain out of most vehicles, and LT1s have even less parasitic drag from the belt driven accesories.
As for using only the crank pulley - you are WRONG. The crank pulley is smaller, and lighter. Both taking less energy to spin. The smaller pulley also turns the belt slower - slowing down all your accessories (cough :underdrive: cough). This WILL affect your alternator charging -maybe not enough to matter, but it will affect it. The alternator pulley is an OVERDRIVE pulley. It spins the alternator faster inorder to make up for the slower moving belt. This compensates for what loss in amperage you would have had if you only used the crank pulley.
If you do pulleys, do alternator AND crank.
As for using only the crank pulley - you are WRONG. The crank pulley is smaller, and lighter. Both taking less energy to spin. The smaller pulley also turns the belt slower - slowing down all your accessories (cough :underdrive: cough). This WILL affect your alternator charging -maybe not enough to matter, but it will affect it. The alternator pulley is an OVERDRIVE pulley. It spins the alternator faster inorder to make up for the slower moving belt. This compensates for what loss in amperage you would have had if you only used the crank pulley.
If you do pulleys, do alternator AND crank.
We all have our opinions.....
The 52TB on my 94 was worth 2tenths and 2 MPH, we'll see what a 52mm is worth on this 97 shortly.
I also picked up with an ASP crank/alt pulley set up, but did notice the alternator not putting out the right volts. I was going to try just the ASP crank pulley on the 97 but decided not to for some reason.....
The 52TB on my 94 was worth 2tenths and 2 MPH, we'll see what a 52mm is worth on this 97 shortly.
I also picked up with an ASP crank/alt pulley set up, but did notice the alternator not putting out the right volts. I was going to try just the ASP crank pulley on the 97 but decided not to for some reason.....
Originally Posted by flatlander757
suspension can greatly help a bolt-on car
check for gm high tech performance's article about how only adding suspension goodies, they got an otherwise stock LT1 to run low 13s.
check for gm high tech performance's article about how only adding suspension goodies, they got an otherwise stock LT1 to run low 13s.
Originally Posted by Shon Herron
I am working on a bolt on car now, we'll see Saturday what the results are going to be....
Bolt-on's are the only way to go, right Shon??
Post up how Saturday goes
Brady
Shon,
You should come up to Rockingham this weekend. The IHRA is in town. There will be a bunch of fast LT1 Stockers in attendance. Woodro was running 9.8's in Top Stock last year.
Take Care,
Daren
You should come up to Rockingham this weekend. The IHRA is in town. There will be a bunch of fast LT1 Stockers in attendance. Woodro was running 9.8's in Top Stock last year.
Take Care,
Daren
