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Post by ulric114 on Nov 13, 2012 21:27:15 GMT -6
Was wonder if it is possible and if anyone has converted a 95-99 olds aurora from automatic to manual
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Post by Marc on Nov 13, 2012 21:30:39 GMT -6
This has already been done. When Auroras were racing in IMSA during the 1990s, they were converted to manual and RWD.
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Post by ulric114 on Nov 13, 2012 22:29:27 GMT -6
Can someone shed some light on how to actually do it?
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Post by shelbyracing on Nov 14, 2012 8:02:16 GMT -6
Get your wallet out$$$$$$$
I think it would have to be RWD, the motor would need remounted for the trans to angle to the back of the car, might have to cut some floor out and reweld it up higher, need a rear axle, way to mount it.
Long story short it probably won't happen. Those IRL cars were 2 door rwd, nothing really in common with an Aurora other than it's body looks like an Aurora, and the engine 'main' design (4.0 dual overhead cams and 4 valves per cylinder).
Sorry but I would think you'd have to have like 15 grand to drop in it.
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Post by Marc on Nov 14, 2012 8:36:36 GMT -6
Sorry but I would think you'd have to have like 15 grand to drop in it. Much, much more!! |
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Post by shelbyracing on Nov 14, 2012 8:45:40 GMT -6
Sorry but I would think you'd have to have like 15 grand to drop in it. Much, much more!! I'd agree for sure. Was just sayin' min of 15. |
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Post by ntrenn on Nov 14, 2012 9:57:52 GMT -6
If you stay FWD, the biggest problem is finding a transmission that will bolt up. Everything else should be a walk in the park.
I have recently been scratching my head over a Dodge transmission problem and have seriously considered a GM swap into the vehicle. There are adapters for that, but they start in the $400 range. That market is driven by the poor reliability of the Chrysler transmissions, which then inflates the cost of used as well....
Maybe I'll just transplant the Iron Duke and T-5 into it??
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Post by ulric114 on Nov 14, 2012 12:23:48 GMT -6
Ok thank you everyone for your input, I didn't think it would cost that much. If anyone has done this can you post a pic or something?
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Post by shelbyracing on Nov 14, 2012 12:24:19 GMT -6
Keep in mind you would have to use a FWD transmission since the axles come directly from the transmission. Also would have to find axles that fit the trans and the hub spline. At very minimum you would have to get axles machined esp since it is highly unlikely they would be same distance from the hub. Not a tremendously big deal but won't be cheap. Esp since they 'Should' be Chromoly dumping 3k or so on it would snap anything else.
Also linkage would be a total nightmare to get a shifter in place.
And keep in mind that it would have to be able to handle V8 power as well.
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hassu
Aurora Newbie
Posts: 12 
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Post by hassu on Nov 16, 2012 9:32:14 GMT -6
Everything is possible. My other project is Pontiac Fiero and Aurora/Cadillac engine conversion is not so rare package with manual transmission in Fieros. Original Getrag, F23, F35 or F40 transmissions are used. F23 and Fiero Getrag use same axle size and the two other are bigger. They are all FWD as the Fiero is using them as a mid engine configuration. The problem comes when you have to deal with ECM with manual trans.
In my opinion that fits to Fiero but Aurora is different in caracter and need automatic. Check out in Pennock´s Fiero Forum
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Post by almostjaded on Dec 6, 2012 18:18:06 GMT -6
^he beat me to it. The F23, F35 and F40 transmissions will all bolt to the L47, and *could* be made to work. Big project, but not unrealistic at all. I've been looking sideways at the Quaife-LSD equipped F35 I have sitting here for a while now since it wasn't selling, but someone just bought it, lol.
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Post by groomlaketested on Feb 10, 2013 10:26:08 GMT -6
There is something that the Fiero guys havent mentioned. Im my quest to put a North* motor in a mid engine configuration in my subaru i stumbled upon something interesting. They say that with the right programmer you can program the stock transmission to run a paddle shifter setup. Granted its not the old traditional method but it is something to consider. I think the kit was like 5g or something like that. These people were doing this with stock aurora engines and transmsisions in fieros but ran paddle shifters. Just a thought.
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Post by shelbyracing on Feb 10, 2013 11:56:39 GMT -6
Our transmissions are pretty awesome with one aspect I don't like. It has a lot of heavy moving parts and eats a lot of horsepower. Like 80 hp or so (I figured it out but don't remember exactly). If there were to be a solid trans that would actually fit I would consider doing it. I know I could figure it out and I'm pretty good at fabbing stuff n welding. But first it has to fit, and I need to find some good pics of the Fiero set up, how it's mounted n such. I bet it would get like 34+ mpg also without all that rotational drag.
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Post by Kersh on Feb 15, 2013 13:07:26 GMT -6
Transmission-wise, I would look into something like the 6-speed manual used in the '06+ Pontiac G6 applications. I'm sure you could fabricate an adapter plate fairly easily. I think the biggest issue would be finding a flywheel to bolt to the Northstar crank. I'm sure you could have something the correct diameter drilled for the correct mounting, but what is the balance? If it's neutral, that would be easier, but if it had to be to a specific imbalance, wouldn't that be fun?  |
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Post by shelbyracing on Feb 15, 2013 14:16:52 GMT -6
The more I think, the more I think RWD would be way easier. Though WTH do I do with my exhaust? I really dislike the idea of it hanging under the car cause bottoming out sucks!! Another positive aspect would be headers ;D and room for them. With headers and a stick it'd be putting nearly 40-50 more hp to the wheels. That is the only thing drawing me to this idea.
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Post by shelbyracing on Feb 15, 2013 14:19:57 GMT -6
Since classic doesn't (to my knowledge) have stability control I could just wire the front wheel sensors to the rear for traction control to work. As long as it retained gear ratio, or atleast close to the gear ratio and take the rest of the math out by changing tire size. As long as it isn't dependent on the trans speed sensor. I'm not sure if it can calculate it with engine rpm and wheel speed alone.
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