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ls 4 trans by madbrad01
Started on: 08-23-2018 09:20 AM
Replies: 19 (348 views)
Last post by: motoracer838 on 08-30-2018 09:11 PM
madbrad01
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Report this Post08-23-2018 09:20 AM Click Here to See the Profile for madbrad01Click Here to Email madbrad01Send a Private Message to madbrad01Edit/Delete MessageReply w/QuoteDirect Link to This Post
Found a ls4 for sale minus the trans, Was wondering why i couldn't use my trans thats in my car already. It's a 4.9 caddy auto.swap that i'm not happy with.I was thinking maybe the starter location , but why not use fiero guru starter mount ? Any info would be appreciated .
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fieroguru
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Report this Post08-23-2018 09:56 AM Click Here to See the Profile for fieroguruSend a Private Message to fieroguruEdit/Delete MessageReply w/QuoteDirect Link to This Post
You should talk to Ryan at GM Tuners. He did an LT1 swap and adapted the RWD 4L60 shift logic to make the 4T60e work.

All LS4 (05/06 24X and 07-09 58X) use the T42 transmission controller. If there was an application where the t42 controller was used on a 4L60E, then Ryan might be able to swap that program into your T42 controller and make similar adjustments as he did with the LT1 swap to get the 4T60e to work.

If you cant do it with the T42 transmission controller, and your engine is a 24x 05/06 one, then you could switch to the 411 ecm from an older 4L60e LS engine application.

Both of these are long shots, but might be doable.

Starter mount is a non-issue.

[This message has been edited by fieroguru (edited 08-23-2018).]

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madbrad01
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Report this Post08-23-2018 10:15 AM Click Here to See the Profile for madbrad01Click Here to Email madbrad01Send a Private Message to madbrad01Edit/Delete MessageReply w/QuoteDirect Link to This Post
I was going to do remove dod and cable for the gas pedal ,and use a truck computer ,and a turbo.
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madbrad01
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Report this Post08-23-2018 10:36 AM Click Here to See the Profile for madbrad01Click Here to Email madbrad01Send a Private Message to madbrad01Edit/Delete MessageReply w/QuoteDirect Link to This Post
Thanks for the reply .
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Dennis LaGrua
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Report this Post08-23-2018 05:33 PM Click Here to See the Profile for Dennis LaGruaClick Here to Email Dennis LaGruaSend a Private Message to Dennis LaGruaEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by madbrad01:

I was going to do remove dod and cable for the gas pedal ,and use a truck computer ,and a turbo.


AFAIK, removing DOD on an LS4 is a pretty involved process. For starters, the Lifters, Cam and Oil pump must be replaced

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motoracer838
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Report this Post08-23-2018 06:22 PM Click Here to See the Profile for motoracer838Click Here to Email motoracer838Send a Private Message to motoracer838Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Dennis LaGrua:


AFAIK, removing DOD on an LS4 is a pretty involved process. For starters, the Lifters, Cam and Oil pump must be replaced



I have been there, http://www.fiero.nl/forum/Forum1/HTML/098288.html
Paid as much for the kit as the engine, next time I'll buy the parts, wound up not using the TTY head bolts that came with the kit, as well as the exhaust manifold gaskets, since I'm running the LS7 manifolds... Had to buy the pump seperatly, didn't come with the kit... (you can supposedly run the dod pump, I didn't want to take any chances... Got the GM Performance Parts pump...

Joe
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madbrad01
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Report this Post08-24-2018 09:07 AM Click Here to See the Profile for madbrad01Click Here to Email madbrad01Send a Private Message to madbrad01Edit/Delete MessageReply w/QuoteDirect Link to This Post
Thanks for the info, I think i'm going to proceed with this project, The guy is asking $500 for a 06 ls4. What do you think?
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fieroguru
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Report this Post08-24-2018 09:22 AM Click Here to See the Profile for fieroguruSend a Private Message to fieroguruEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by madbrad01:

Thanks for the info, I think i'm going to proceed with this project, The guy is asking $500 for a 06 ls4. What do you think?


Price isn't bad, but how many miles and what all comes with it? Things like accessories and harnesses start to add up quick.

My last 2 LS4s purchased were complete dropouts engine/trans/accessories/harness... everything and it was $1800 for both.
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madbrad01
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Report this Post08-24-2018 11:09 AM Click Here to See the Profile for madbrad01Click Here to Email madbrad01Send a Private Message to madbrad01Edit/Delete MessageReply w/QuoteDirect Link to This Post
everything but the trans, unknown mileage
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Spadesluck
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Report this Post08-24-2018 11:59 AM Click Here to See the Profile for SpadesluckSend a Private Message to SpadesluckEdit/Delete MessageReply w/QuoteDirect Link to This Post
Price wise, wouldn't it just be easier to do an LS2/3 instead? After all the work in the LS4 you probably paid for the LS2/3 already.
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madbrad01
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Report this Post08-24-2018 12:58 PM Click Here to See the Profile for madbrad01Click Here to Email madbrad01Send a Private Message to madbrad01Edit/Delete MessageReply w/QuoteDirect Link to This Post
Haven't priced a LS2 but i know a LS3 isnt that cheap. $500 for a LS4 isn't bad, $280 for a sloppy cam,already have lifters.
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Report this Post08-24-2018 01:59 PM Click Here to See the Profile for olejoedadClick Here to Email olejoedadSend a Private Message to olejoedadEdit/Delete MessageReply w/QuoteDirect Link to This Post
Any LS series engine other than the LS4 will require an adapter plate to mount a FWD transaxle to the engine.
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motoracer838
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Report this Post08-24-2018 02:24 PM Click Here to See the Profile for motoracer838Click Here to Email motoracer838Send a Private Message to motoracer838Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Spadesluck:

Price wise, wouldn't it just be easier to do an LS2/3 instead? After all the work in the LS4 you probably paid for the LS2/3 already.


I'm still a long way from LS2-3 prices and there would still be the adapter...

Joe

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fieroguru
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Report this Post08-24-2018 06:39 PM Click Here to See the Profile for fieroguruSend a Private Message to fieroguruEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Spadesluck:

Price wise, wouldn't it just be easier to do an LS2/3 instead? After all the work in the LS4 you probably paid for the LS2/3 already.


The price for a used but good running aluminum block RWD LS engine are normally $3K-$6K, especially when talking about the 6.0 and larger engines. It is hard to get an aluminum 6.2L shortblock for under $1900. Then add in the cost/complexity of buying all the LS4 parts to improve fitment into a Fiero and it is hard to beat and the all aluminum LS4.
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madbrad01
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Report this Post08-26-2018 12:39 PM Click Here to See the Profile for madbrad01Click Here to Email madbrad01Send a Private Message to madbrad01Edit/Delete MessageReply w/QuoteDirect Link to This Post
Is there even a trans to hold that much torque ?
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bjm362
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Report this Post08-26-2018 01:34 PM Click Here to See the Profile for bjm362Send a Private Message to bjm362Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by madbrad01:

Is there even a trans to hold that much torque ?


The LS4 is detuned and an overdrive chain/'gear set is used to further reduce torque so a 4T65E-HD can stand up. Triple Edge Performance makes some BA high performance versions of the 4T65E-HD.
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madbrad01
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Report this Post08-27-2018 04:44 PM Click Here to See the Profile for madbrad01Click Here to Email madbrad01Send a Private Message to madbrad01Edit/Delete MessageReply w/QuoteDirect Link to This Post
Doesn't fiero king make a alt drive way back on the engine?
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qwikgta
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Report this Post08-29-2018 01:21 AM Click Here to See the Profile for qwikgtaClick Here to Email qwikgtaSend a Private Message to qwikgtaEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Spadesluck:

Price wise, wouldn't it just be easier to do an LS2/3 instead? After all the work in the LS4 you probably paid for the LS2/3 already.


are you kidding? a RWD LS2/3 with Archie kit will cost 2x to 3x as much as a LS4. First the LS4's are cheap but harder to find. $500-1000 on average. A LS2/3 is going to run you $1500-3000 easy. Then you have to purchase a Archie kit, thats $5K to start, more if your adding a manual trans. You don't even need a kit for the LS4. add all the bits and pieces and your looking at $10-12K for a LS2/3 vice $3-4K for a LS4.

[This message has been edited by qwikgta (edited 08-29-2018).]

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Spadesluck
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Report this Post08-30-2018 04:27 PM Click Here to See the Profile for SpadesluckSend a Private Message to SpadesluckEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
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Originally posted by qwikgta:


are you kidding? a RWD LS2/3 with Archie kit will cost 2x to 3x as much as a LS4. First the LS4's are cheap but harder to find. $500-1000 on average. A LS2/3 is going to run you $1500-3000 easy. Then you have to purchase a Archie kit, thats $5K to start, more if your adding a manual trans. You don't even need a kit for the LS4. add all the bits and pieces and your looking at $10-12K for a LS2/3 vice $3-4K for a LS4.



Not kidding, was merley a question. The last time I priced out an LS4 they were still a bit high. What I have not realized was the fact that the LS2's were still so pricey. Just like GI Joe, knowing is half the batter.
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motoracer838
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Report this Post08-30-2018 09:11 PM Click Here to See the Profile for motoracer838Click Here to Email motoracer838Send a Private Message to motoracer838Edit/Delete MessageReply w/QuoteDirect Link to This Post
For my LS4, I have less than a $1,000 in the engine and DOD delete kit, where I've really spent money is all the support parts to make it work, Still needed for the RWD engines and you still need an adapter after that, LS4 is by far the best bang for the buck.

Joe
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