- Message_1565567864484-1-1.jpg (679.4 KiB) Viewed 3876 times
What should I do with this ls4?
Moderator: Series8217
- Shaun41178(2)
- Posts: 8464
- Joined: Fri Nov 19, 2004 7:12 pm
- Location: Ben Phelps is an alleged scammer
-
- Posts: 2853
- Joined: Mon May 24, 2010 5:34 pm
- Location: Aiken, SC
Re: What should I do with this ls4?
dod delete, healthy cam(LS6 or LS7 can be had CHEAP) intake and exhaust. with a manual trans it would be a blast. Fieroguru makes a starter mount that works with just about any transmission. not sure if he still makes flywheels or not. if you want to get silly, I bet someone makes a supercharger kit for it.
"I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."
-
- Peer Mediator
- Posts: 15629
- Joined: Wed Nov 24, 2004 11:13 pm
- Location: In the darkness, where fear and knowing are one
- Contact:
Re: What should I do with this ls4?
Sell it to fund your next turbo V6?
- Shaun41178(2)
- Posts: 8464
- Joined: Fri Nov 19, 2004 7:12 pm
- Location: Ben Phelps is an alleged scammer
Re: What should I do with this ls4?
I was thinking a cam to bleed off low end torque and an itb intake in keeping with a theme.
I gotta get the cradle out first which is what I was gonna do anyways to throw in the 3900
I gotta get the cradle out first which is what I was gonna do anyways to throw in the 3900
-
- Peer Mediator
- Posts: 15629
- Joined: Wed Nov 24, 2004 11:13 pm
- Location: In the darkness, where fear and knowing are one
- Contact:
Re: What should I do with this ls4?
Staying turbo? Going 6 speed?
- Shaun41178(2)
- Posts: 8464
- Joined: Fri Nov 19, 2004 7:12 pm
- Location: Ben Phelps is an alleged scammer
Re: What should I do with this ls4?
Ls4 is no turbo.
3900 will be turbo.
Playing with both ideas right now
3900 will be turbo.
Playing with both ideas right now
-
- Peer Mediator
- Posts: 15629
- Joined: Wed Nov 24, 2004 11:13 pm
- Location: In the darkness, where fear and knowing are one
- Contact:
Re: What should I do with this ls4?
ARP rod bolts + cam, valvesprings & pushrods and it'll turn 7000.
The heads are a well known commodity, with good port jobs widely available. You'll want to swap to an LS2/6 style intake manifold and do a DOD/AFM delete.
As always with Fieros, the exhaust will be the fun part.
The heads are a well known commodity, with good port jobs widely available. You'll want to swap to an LS2/6 style intake manifold and do a DOD/AFM delete.
As always with Fieros, the exhaust will be the fun part.
- Shaun41178(2)
- Posts: 8464
- Joined: Fri Nov 19, 2004 7:12 pm
- Location: Ben Phelps is an alleged scammer
Re: What should I do with this ls4?
Anyone know if an ls4 will fit in the engine bay and clear the strut towers of an 88 without shifting the trans to the drivers side?
Can the stock trans stay in the same spot?
Can the stock trans stay in the same spot?
-
- Peer Mediator
- Posts: 15629
- Joined: Wed Nov 24, 2004 11:13 pm
- Location: In the darkness, where fear and knowing are one
- Contact:
Re: What should I do with this ls4?
FieroGuru's car is an '88. Check out his build thread. He also sells most of the parts he built.
http://www.fiero.com/forum/Forum3/HTML/000123.html
He did a lot of fiddly stuff to try to keep DOD/AFM, only to find out it would never work without adding the Impala SS BCM to his car. If you skip all that noise, you can just go straight to an LS2 top end without a lot of the fussy stuff he does in terms of modifying the intake manifold and oil pressure sensor.
The way his starter mount works requires using a HTOB style transmission (@$$uming you're going stick).
Note that there are a lot of fit/futz style mods required to the water pump housing in order to get it to clear the Fiero firewall at the top. That casting also fights with the hinge box, so be aware of that.
http://www.fiero.com/forum/Forum3/HTML/000123.html
He did a lot of fiddly stuff to try to keep DOD/AFM, only to find out it would never work without adding the Impala SS BCM to his car. If you skip all that noise, you can just go straight to an LS2 top end without a lot of the fussy stuff he does in terms of modifying the intake manifold and oil pressure sensor.
The way his starter mount works requires using a HTOB style transmission (@$$uming you're going stick).
Note that there are a lot of fit/futz style mods required to the water pump housing in order to get it to clear the Fiero firewall at the top. That casting also fights with the hinge box, so be aware of that.
- Shaun41178(2)
- Posts: 8464
- Joined: Fri Nov 19, 2004 7:12 pm
- Location: Ben Phelps is an alleged scammer
Re: What should I do with this ls4?
Yea he used an f40 buy shifted everything to the drivers side. It seems noone know using stock trans location and clearances because noone does use stock trans
-
- Peer Mediator
- Posts: 15629
- Joined: Wed Nov 24, 2004 11:13 pm
- Location: In the darkness, where fear and knowing are one
- Contact:
Re: What should I do with this ls4?
Sinister did and LS4 with stock trans: http://www.fiero.com/forum/Forum3/HTML/000087.html
- Shaun41178(2)
- Posts: 8464
- Joined: Fri Nov 19, 2004 7:12 pm
- Location: Ben Phelps is an alleged scammer
Re: What should I do with this ls4?
Ryan used a 4t65 that came with the engine.
Is the bellhousing face of the trans in the same location to the cradle between the getrag and 4t65 when mounted? I think people shift the trans to the drivers side a bit to do this.
Is the bellhousing face of the trans in the same location to the cradle between the getrag and 4t65 when mounted? I think people shift the trans to the drivers side a bit to do this.
FieroPhrek working on that ls4 swap for 18 years and counting now. 18 years!!!!! LOL
530 whp is greater than 312
530 whp is greater than 312
-
- Peer Mediator
- Posts: 15629
- Joined: Wed Nov 24, 2004 11:13 pm
- Location: In the darkness, where fear and knowing are one
- Contact:
Re: What should I do with this ls4?
I had @$$umed the trans was in the same spot for an LS4 swap as it is for a 3800 swap. I can ask.