marcusicp

I know of one person on this forum that has started an auto swap into an SS/TC but he hasn't released any info. I was just wondering if anyone else out there has thought of or done one? Could it be as simple as getting a transmission, ECU, and harness from an HHR SS and swapping it into a Cobalt? Anyone have information about this? I really want to do an auto swap for drag racing. If it isn't feasible I more than likely wont be keeping this car.

Billy Baldone

An auto for drag racing?In this platform?Another example of "having more money than brains"The cost to make this car into a drag car requiring the use of an auto is a great start to a 10 second Terminator or F body car

Bika

iTrader: (3)

why would you buy a car that didnt suit your needs?

Even if the auto trans bolts up at the bell housing, you still have the problem of figuring out what to do with your brake/master cylinder which is tied into the clutch hydraulic supply.

Alot of work and $. Just trade the car for something else.

marcusicp

Apparently I should have also added, people that know nothing about the subject at hand and have nothing useful to add to the thread should please refrain from posting. Trust me I am well aware of what other options are available. If I was interested in a Camaro, Firebird, or Mustang I would be on their forum would I not?


Now then, anyone have anything useful to share?

D4u2s0t

what are your power plans for the car? I don't see why you'd want to downgrade to a 4 speed tranny and run significantly slower. Practice your driving and you'll be consistent.

That being said, not sure what exactly would be required for a swap.

berto

what would be the point????

D4u2s0t

typically it's done for consistency, and when your car is fast enough that it just doesn't make sense to manually shift it anymore. I don't see that happening in a cobalt though, unless he's investing tens of thousands into a drag setup. In our cars, it would be done at the expense of horsepower, and slower acceleration.

marcusicp

I don't think it would matter if clutch parts were removed and the stock master cylinder was used for only the brakes. If it did matter the master cylinder could easily be swapped for one from an auto car as well. So that isn't a big deal. I am more worried about if an auto will fit and if I can find an ECU to work with it at this point.

I have a few things I am working on to make an auto really the best option. In my case, an auto will in fact be faster at the strip than a F35 would be with a similar build.

D4u2s0t

what kind of times are you aiming for?

marcusicp

I'm not going to talk about that just yet. Let's just say that I have big goals.

Bika

iTrader: (3)

It can be done. hell, anything can be done with enough time, cash, and knowledge.

The SS/TC has a no-lift-shift mode for this purpose. No time wasted lifting the throttle to shift, continuous boost through the gears.

The best bet would be to find a junked HHR SS that happens to have an automatic. cannibalize it for parts. I'm not 100% sure but I'm going to say the bellhousing bolts are different, based on GM's track record.

ralliartist

might as well go all out. 2008 and up saabs with the XWD(cross wheel drive) or AWD as we all know it, are compatible with all ecotecs. They made a 2.0t model, an LSJ with a turbo rather than a supercharger mated to an automatic 6speed awd trans.

there ya go, be the first to do it. Try not to draw it out over several years and several hundreds of thousands of dollars though. We've already seen our fair share of that.

slowswap

Talk 06blackg85ss. He's helping someone do this I do believe.

qwikredline

yes its been done, is being done by Paul, and btw I thought you guys were drag race crazy and knew: 2 spd powerglide is qwiker than stick...wtf?

EXsoccer1921

iTrader: (14)

i know you're being sarcastic lol. but i was actually thinking the other day of researching if a shop could change the 5speed in the ss's to a 3 speed, since we only use up to 3rd gear at the track, with a shift pattern that would ensure no missed shifts. or just go with a 2speed auto simply because its one shift and deadly consistant.

i raced a few times in the No/E class at our local track for ***** and giggles (i normally race in trohpyII for points) . and actually won about $1,500 doing so in no/e. but i could never make it past the semis because the car just wasn't consistant. and yes the ET break in IHRA No/E is 0-19.99. so i was racing 9, 10, and 11 second cars. but hey....thats bracket racing.

marcusicp

Not looking to do anything radical with the drivetrain like an AWD swap. Just a "simple" auto conversion with a built 4T65. I think it should be easy enough but wanted to see if anyone had any helpful info first before I started gathering parts.

I know he is doing one but he isn't saying much about it yet... I hope he shares his information once he is finished but till then I am in the dark as to what is needed.

rallyracer

auto TC = FAIL

marcusicp

With the stock transmission, 3rd gear at 8,000 RPM's with a 26" tall tire wouldn't be enough for my car once its "done"... I would be well in to 4th by the time I cross the traps. That is part of the reason I want to go with the auto swap as well.

EXsoccer1921

iTrader: (14)

i plan on running a 28 and that will carry me pleanty haha. though i'm probably not looking for the times you are

northvibe

iTrader: (1)

lol ya ya jeff but in a drag race only car they are much faster.

rallyracer

Auto's should be banned from drag racing...if you want to be fast you better learn to shift fast.

marcusicp

Back on topic guys! This isn't a thread to argue the merits of manual and automatic transmissions. This is a thread to gather information on performing the swap. If you have nothing helpful to add then please don't clutter the thread with useless post.

EXsoccer1921

iTrader: (14)

dear clutch car fan boi.

http://www.youtube.com/watch?v=tDbrv...layer_embedded

sincerely. the automatic club.

marcusicp

Looking into it more I think a 4t45 would basically be a direct swap from an HHR to a Cobalt. The 4T65 however, would need a little work to get in there. I do think it is possible however without too much headache. I think at this point I am going to go with the 4T45 however just to keep it simple.

Anyone know what transmission Paul is swapping into that Cobalt he is working on?

1BADSS/SC

really

*******

DUMB

IDEA