Friend of mine has a 22K mile 2.4L longblock/Tranny/Ecu for sale for 800 dollars. What i'd really like to do is buy that combo and swap it into my ion and turbo it for a kickass DD. My main questions are as follow's :

1. How much power can the Automatic handle?
2. How much power can the stock shortblock handle?

I'd like to shoot for 300whp with good spool characteristics. Thanks

Edit : Don't know what happened to the original thread i posted.

 

1. automatic ftl.... not the answer your looking for but the one we are most thinking
2. im sure you can pull 300 out of it on turbo boost only. the heat from a m62 is to dangerous that high up

 

1. I don't care what everyone thinks about it. A turbo'd 2.4L auto would destroy the majority of sc/ss guys anyway

 

and a turboed ss??? would do what?

apples to oranges

 

They'd run very close. All i hear is how everyone thinks the auto is bad and slow.

I don't want anyone's opinion on the auto. All i want to know is how much power it can handle

 

I got a ss/sc and i wish it was a auto. i heard they handle 300 as well the guys to talk to is , level 10 performance

 

totally not necessary dude. thats on par with the threads titled "how can i get the most power out of my SS" and your the kid who comes in and says "buy a real car/v8"

to answer the OP's questions...the stock auto tranny is rated for 315tq, can probably handle 350tq safely, and 400tq if you wanna really push it. I know of a couple guys running like 330wtq, which would be 390btq.
As for the engine, thats a little unclear to me, but the engine will probably need to be built with some internals before the transmission will.
Keep in mind, the transmission will REQUIRE a tune if you are making a significant amount more HP than stock, or it will die on you

 

Thanks hunter for the info i was looking for. Custom forged pistons and rods are a must and i'm not going to half-ass it.

Can HPT tune the tranny? What would need to be changed in the tranny that would require a tune?

 

HPT can tune the tranny, yea. You will need to increase the line pressure to the shift packs during WOT or even heavy throttle shifts.

This is how i recall halfcent explaining it to me (and he knows a shitload about our tranny):
If you're driving your car like stock, the tranny will slip the clutch packs (similar to slipping the clutch) to make a smooth shift. It does this at WOT when stock as well, though to a lesser extent. If your pushing a decent amount of extra power however, the clutch pack engaging so slowly while trying to grip all that power will cause the clutch pack to slip a lot more than intended, which will wear out the clutch pack. The more extra power you push, the more line pressure you need to run during shifts so the clutch pack will clamp down and hold that power instead of slipping the clutch pack.

I hope that made sense. Its a simple thing to tune for, but very important that you do it for the tranny
im off to bed tho, ill answer any other questions you have in the morning

 

Made perfect sense hunter. Who's the most knowledgeable on this site when it comes to turbo's? I'm looking for a budget turbo that will deliver excellent spool and 350whp on 20psi of boost.

 

I'm no turbo genius, but I'd recommend a GT2871R. Would spool pretty quick and power until 460 hp.

http://www.turbobygarrett.com/turbob..._472560_15.htm

 

I love that turbo but am kinda looking for a "Budget" friendly turbo. GT28R would be perfect if it wasn't 900 dollars.

 

It depends are you looking for a turbo kit or just a turbo?

 

A used mitsu 18g or 20g might be just what you're looking for then. I don't think a 16g will flow enough for 350 whp.

If you want to keep it Garrett all the way, a 50 trim stg 3 .63 ar would spool up very nicely and would support those goals.

http://www.atpturbo.com/Merchant2/me...egory_Code=TBN

 

i'll chime in later.. lol

 

A note to all the auto tranny haters, you are more than welcome to run me.

To the OP, I've heard mixed reviews. However I know at (http://media.gm.com/division/2005_pr...ans_specs.html)

This says: 220ft/lbs of torque is max.

This is inacurate as i've been well over 300 for over a year and have had 0 issues.

For 300whp, you'll be fine. As i'll be at 330-350whp soon.

 

theyd be pretty much the same, if not the 2.4 be better at the same boost levels than the 2.0............................................... ...................................not apples to oranges

 

The 2.0 would be faster because the engine's built for boost, whereas we're kind of limited.

 

yes the auto is more than strong enough to reliably handle 300hp, but i would add in a tranny cooler to help out and be extra safe.

with proper internals the 2.4 will be virtually indestructable up to 400-450hp depending on the type of internal metal you use. i can list off a couple features the 2.4 has that the 2.0 doesnt which makes the 2.4 look even better...but i will say this...the 2.4 le5 comes from an original saab design that was built to handle boost...these motors have repeatdly seen high hp and boost levels and very very few have been busted...thats more than what a 2.0 can say...

kyle your just gonna back me up so i saved you some work. lol

 

honestly, the turbo and the wastegate are the two things i would not do cheaply. everything else, go ahead and buy budget parts. thats just IMO though

GM rated it for 315tq

the 2.0 has no benefit over the 2.2 as far as boost goes. less displacement and lower compression. The cam timing slightly benefit the 2.0, but its negligible, and the only other big differences are oil squirters and sodium filled exhaust valves, which really dont benefit performance, theyre more for reliability

 

Thank you EVERYONE for the info. I'm buying it from him tonight and will be starting the project next weekend.

One main question. How the hell can ebay turbo's exist for 200 dollars when Garrett turbo's are 1000 dollars? Are the ebay turbo's made of plastic?

How much is my LSJ worth? It only has 19K miles. I imagine someone would be very interested in the full supercharger setup.

 

The internals are stronger is what I was getting at. You're not going to see any 2.2 guys running 400+ whp on stock bottom end. They can turn up the boost without a lot of problems.

And yeah, there's something wrong with any turbo less than about 400. Those ebay turbo's are a bunch of Chinese knock off junk. Some are even glued together and fall apart the same day as installed. There's a reason why it's so cheap.

 

honestly.. 2.4's a GREAT motor.. that being said.. you could very easily turbo the LSJ and get great results too .. IMO swapping is a silly idea because by the time you get done with everything it will cost more..

2.4's have proved themselve as capable.. but the question is it worth the 800 plus labor and turbo equip? just to have something that could've been bought stock.. YES you can sell off all your stock parts and make money for it but it's really a questoin of if it's worth the work.. stock 2.4 should be handling 350 whp on a good tune .. tranny should be able to handle around that with tranny cooler

but on the other hand a turbo swapped LSJ can do that as well it's really what YOU want to do .. you can get the same results on either platform ..

 

No labor charges here elec This swap will be done by myself and a few friends. I think the LSJ is a sweet engine but i really want the automatic and the added displacement.

 

well then have fun lol .. if theres no labor you could probably have the whole thing for free after selling all your stock parts and such