IRS for f-bods
Is your goal for better handling or smoother ride? It certainly couldn't be for decreased weight or better drag racing launches.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Thread Starter
Launching!
Joined: Mar 2003
Posts: 293
Likes: 0
From: TX.
Originally Posted by cueball
I was thinking, would the IRS for the GTO fit the F-body cars with min.
modifications to the F-body?
just something for you guys to think about trying.
modifications to the F-body?
just something for you guys to think about trying.
some other people asking about the IRS from the corvette, thought the IRS from the GTO would be easier to install than the unit from the vette.
just a thought, trying to get some opinions about it.
i don't think its possible to do.
in reality, its not something that can be done with good results, without major fabrication, look at the other chassis that dates back 25 years and see how the bolt in irs works (mustang)
Ryan
in reality, its not something that can be done with good results, without major fabrication, look at the other chassis that dates back 25 years and see how the bolt in irs works
(mustang) Ryan
Teching In
Joined: Oct 2004
Posts: 39
Likes: 0
Originally Posted by slow
i don't think its possible to do.
in reality, its not something that can be done with good results, without major fabrication, look at the other chassis that dates back 25 years and see how the bolt in irs works (mustang)
Ryan
in reality, its not something that can be done with good results, without major fabrication, look at the other chassis that dates back 25 years and see how the bolt in irs works
(mustang) Ryan
Im sorry but thats just the wrong attitude. Ive seen a C3 IRS under a 73' Vega Hatch back with two 4's on a tunnel ram stick out the hood. The thing would just squat and GO. I just think you dont know how to weld and have no imagination. Cutting up cars and peicing them together is what this hobby is all about. Thats how it started, with Tommy Ivo sticking a 401 NailHead Buick V-8 on a 32' Ford Model A Frame with a 27' Model T Body.
Any way if I were trying to stick a IRS under the rear I would do what all the 50- something "Diaper Rod Rubbers" do and buy a IRS system aftermarket.
TECH Enthusiast
Joined: Oct 2003
Posts: 662
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From: Shelton Ct
http://www.transamgta.com/FireFox/
It was done before, so with a little imagination it could be done.
It was done before, so with a little imagination it could be done.
Trending Topics
Originally Posted by ChiefBrody
http://www.transamgta.com/FireFox/
It was done before, so with a little imagination it could be done.
It was done before, so with a little imagination it could be done.
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TECH Resident
Joined: Oct 2004
Posts: 807
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From: TAMPA by way of MIAMI!!!
My understanding in the beginning when they brought the GTO out was the diff was suspect. Prolly one out of a C5 would be better. There are also companies out there that put a full C5 suspension under a old '55-'57 shoebox so anything can be done if you want to.
rad rides by troy has a 32' ford with all wheel drive.
i think it has somthing like a c5, only in the front!! they call it the quadradeuce, i think its pushing like 650 hp. a little imagination, skill, and alot of money can get you anything.
i think it has somthing like a c5, only in the front!! they call it the quadradeuce, i think its pushing like 650 hp. a little imagination, skill, and alot of money can get you anything.
Thread Starter
Launching!
Joined: Mar 2003
Posts: 293
Likes: 0
From: TX.
Originally Posted by TheBlurLS1
rad rides by troy has a 32' ford with all wheel drive.
i think it has somthing like a c5, only in the front!! they call it the quadradeuce, i think its pushing like 650 hp. a little imagination, skill, and alot of money can get you anything.
i think it has somthing like a c5, only in the front!! they call it the quadradeuce, i think its pushing like 650 hp. a little imagination, skill, and alot of money can get you anything.
Teching In
Joined: Sep 2004
Posts: 19
Likes: 0
If you are going to go to the trouble of an irs conversion for an fbody, I would use a C5 rear over a C4(or anything else). It has the tranny in the back, which improves weight distribution. You might as well grab the LS1 if your fbody does not already have one. Then again, if you do both, it would probably be cheaper to just get a C5. You can get a good one for mid to low 20's these days.
Teching In
Joined: Mar 2004
Posts: 27
Likes: 0
Originally Posted by TheBlurLS1
rad rides by troy has a 32' ford with all wheel drive.
i think it has somthing like a c5, only in the front!! they call it the quadradeuce, i think its pushing like 650 hp. a little imagination, skill, and alot of money can get you anything.
i think it has somthing like a c5, only in the front!! they call it the quadradeuce, i think its pushing like 650 hp. a little imagination, skill, and alot of money can get you anything.
Originally Posted by cueball
I was thinking, would the IRS for the GTO fit the F-body cars with min.
modifications to the F-body?
just something for you guys to think about trying.
modifications to the F-body?
just something for you guys to think about trying.
Believe it or not, the stock axle is the lightest OEM suspension setup out there. Yeah, there is more unsprung weight than an independent, but the total mass compared to an IRS is usually less... and cheaper.
That said, I have driven both an F-body and a GTO at the limit, and the GTO will always feel more planted, the F-body takes more attention if trailbraking into a bumpy turn, the axle likes to tramp around, and you need a little more steering input to keep the car under control, but it has a higher lateral g capability. I ran my GTO with some retired A-sedan F-bodies (3rd gen, but same suspension as 4th gen) and it they could flat out corner me.
On a tight back road, with less run off room, I always seem to run the f-body a little easier than the GTO. YOu just can push the GTO closer to it's limit and not worry about the tail dancing around..
I am not a big fan of F-bodies <duck> on the street, but they are damn fun track cars..
