Conversions & Swaps LSX Engines in Non-LSX Vehicles
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08 Tiburon engine swap

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Old Jan 15, 2021 | 08:05 PM
  #21  
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Originally Posted by Michael Yount
I don't think the width of that car will accommodate a transverse/fwd layout. FWD or RWD - it's gonna cost a lot more than $21k if you're paying someone to do it.
Idk they fit grand prix gxe and 2000 monte Carlos..but yeah, the guy that said he can do it, 21k is the starting price, I mean the ls4 can only handle 400whp without modding up the trans, and 400 at max is asking for trans issues soon or later. I'd do it myself but I live in an apartment complex..money isnt too much of an issue. Just trying to see possibilities and create something unique.
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Old Jan 15, 2021 | 09:06 PM
  #22  
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What you need to keep in mind is that LS4-equipped cars are much wider than your Tiburon. IF you go that way, your front track dimension will be much more than that of the Tiburon.
I did not mean to come off as a jerk before, but was trying to bring a bit of reality to this dream. What I said above still holds, as brutal a truth as it is.
I might advise you to make sure that shop in KY knows what they are doing. They'll all say "Oh yeah, we can do it." Ask to see visual evidence of their previous jobs AND how much it cost them.
Don't want this so bad that it blinds you to reality.
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Old Jan 15, 2021 | 09:21 PM
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G Atsma got their first - track dimension nearly 4" wider -- and that motor/transaxle is a tight fit transversely in the Monte/GP. And you realize -- it's not the "starting price" (which means absolutely nothing) -- it's the ENDING price. No reputable shop would do a swap like that on a fixed cost price -- time/parts. And it's gonna cost....

Get rid of the 'bish - and buy something unique that's rwd -- or.....

Attachment 713342

On the other hand --

Last edited by Michael Yount; Jan 15, 2021 at 09:37 PM.
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Old Jan 16, 2021 | 08:59 AM
  #24  
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Have you considered a supercharged 3800 swap instead? Could be built to 300hp or so easily and I imagine that it would be both a much easier fit, and much cheaper
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Old Jan 16, 2021 | 10:01 AM
  #25  
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that’s why I suggested a 4T80 trans. He will have to fab a starter mount though

Originally Posted by G Atsma
If you keep the tranny that comes with the LS4,plan on about 350HP max. Those trannies are grenades with more than that....
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Old Jan 16, 2021 | 10:09 AM
  #26  
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this would be a lot easier of a fit , I agree. The 3800 is a great little engine in its own right.

Originally Posted by bobcratch
Have you considered a supercharged 3800 swap instead? Could be built to 300hp or so easily and I imagine that it would be both a much easier fit, and much cheaper
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Old Jan 16, 2021 | 10:30 AM
  #27  
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I like the V6 idea, and I like Michael's idea of putting a FWD engine and trans in the rear even better!

I recall this has been done over the years. I recall a Civic...and some sort of Dodge Omni thing back in the day...

Andrew
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Old Jan 16, 2021 | 11:05 AM
  #28  
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Originally Posted by Craig Hoosier
I kept this tiburon from getting scrapped, and want to restore/beef it up.
If the car has great sentimental value I completely understand. If it has not any... I'm thinking of all the awesome 25 to 30 grand finished project cars that can be had for that kind of money. Finished cars rarely sell for the amount invested so the buying dollar is strong in the hotrod market. Best of luck on the build, oddities are interesting if done correctly but come with hundreds of fabricating labor hours not counting the part costs. Seen way to many stall out, being put on the back burner too, then sold for pennies on the dollar.
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Old Jan 16, 2021 | 11:48 AM
  #29  
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I've never driven a fwd with hp. Doesn't seem too fun. Since money is no issue, put the body on a rwd tube chassis and have fun. Race weight would be <2600 and 5-600whp would be fun.
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Old Jan 17, 2021 | 08:48 AM
  #30  
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The simplest path would likely be the transverse LS4, but it is still uncharted territory with it being a non-common chassis. When you are the first with an engine/transmission/chassis combo, there will be lots of trial and error (fab, fit, scrap, etc) to figure out a workable design of all the mounts, axles, accessory drive, exhaust, clearance modifications etc. With you paying someone else to do the swap, all of this trial and error will be at shop hourly rate so the labor costs of the initial development will be very high.

If you go down this path, remember the skillset needed to order pre-build/off-the-shelf parts and assemble them is completely different that what is needed to develop all the needed parts for a completely new swap application. You will want to make sure the shop chosen is up to the R&D challenges and is equipped with proper tools/equipment to accomplish it in an efficient manner (you are paying by the hour not by their progress within the same hour).

It would also be better to start with a shop that has significant experience with the LS4 and their transverse layout. They likely would already have a portion of the R&D figured out and would only have to adapt from there vs. completely reinventing the wheel.

Here is some inspiration: 88 Fiero with LS4/F40 (6 speed manual) in the rear.


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Old Jan 17, 2021 | 08:50 AM
  #31  
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Nivlac57 on YouTube did a turbo LS4/4T80 swap into an Eagle Talon. It has been down the 1/4. You can checkout the build here:

https://youtube.com/playlist?list=PL...n0Ps9_vcQEYhWM
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