IRS convertion in LS1 Camaro
03-07-2010, 06:53 PM
#101
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I can see if your paying a shop $200 to fab everything up for you, but i highly doubt thats going through anyone mind when they mention a drastic modifacation like this being done to there car, there most likely thinking of doing it them selfs.
I would be calling tomorrow about one of these rear ends, but i cant seem to find anything about 21st century and there adaptor plate, there site is down, any help?
Last edited by bob442; 03-07-2010 at 07:00 PM.
03-13-2010, 10:02 AM
#102
bob442, thanks for the info on the rears you found. Keep us posted if you find any more info on the adaptors to make them work. And just an fyi, my 9" was nearly $3000 with the tru-trac option and powder coating!!! So it would have to cost quite a bit in labor and extra parts to reach that with a starting point of $800-1200.
11-08-2010, 06:08 PM
#104
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keeping this going... has anyone done a c5 driveline swap? ie torque tube and rearend/transmission? how about a c5 FRONT suspension? i see them all the time in older f-bodys... just tossing ideas...
03-02-2011, 02:56 PM
#106
Here's a 4th Gen IRS setup:
http://www.fbodymotorsports.com/jay_s_94_formula
Yea, it's a different link than the other in this thread.
http://www.fbodymotorsports.com/jay_s_94_formula
Yea, it's a different link than the other in this thread.
Last edited by libertyforall1776; 03-02-2011 at 03:43 PM. Reason: Yea, it's a different link than the other in this thread.
03-02-2011, 03:04 PM
#107
Here's a 4th Gen IRS setup:
http://www.fbodymotorsports.com/jay_s_94_formula
http://www.fbodymotorsports.com/jay_s_94_formula
Pretty sure that was already mentioned in this thread.
03-02-2011, 03:05 PM
#108
You might want to take that post down, Liberty. Not only has it posted several times on this board, it's already been posted in this thread. There are also two other 4th gens that have the c4 IRS's in them, at least. I only added the link because it's a C5 type IRS.
03-14-2011, 01:34 AM
#109
Although this thread contains many vital points for reasons TO have and to NOT have an IRS in a F-body, the mere thought that there is a right or wrong answer is blasphemy.
The question of putting an IRS into your personal car should be YOUR choice and yours alone. The reason we put the C4 IRS into Jay's Formula wasn't for anyone's gain except for our own. Jay had an idea, compiled data supporting the fitment/geometry, then we went into fabrication and now have one of the most unique F-body's out there.
To those who say it can't hold or won't hold power, the car makes over 400rwhp and hasn't had a hiccup in the years since it's been finished. In retrospect the car has not seen the track, but in all honesty it's due to the fact that it wasn't built for the track. However, I assume at some point it will be paired with a set of DRs and it's capabilities will be proven (don't quote me on that).
To those who say it's not worth the money, just to buy a Corvette...we like F-bodies more, not to mention the fabrication cost us parts and time, so who cares? How many show quality f-bodies have you seen with a fully functional non-back halved car with a IRS?
Basically, in all reality it comes down to customer/personal preference. The fact of the matter is, Jay's Formula will take a turn faster and feel more stable doing so then my Firebird EVER will. The suspension is amazing. There are ZERO facts that prove that the IRS is a waste because the term 'waste' is irrelevant to someone who enjoys their car when they put money into it.
The question of putting an IRS into your personal car should be YOUR choice and yours alone. The reason we put the C4 IRS into Jay's Formula wasn't for anyone's gain except for our own. Jay had an idea, compiled data supporting the fitment/geometry, then we went into fabrication and now have one of the most unique F-body's out there.
To those who say it can't hold or won't hold power, the car makes over 400rwhp and hasn't had a hiccup in the years since it's been finished. In retrospect the car has not seen the track, but in all honesty it's due to the fact that it wasn't built for the track. However, I assume at some point it will be paired with a set of DRs and it's capabilities will be proven (don't quote me on that).
To those who say it's not worth the money, just to buy a Corvette...we like F-bodies more, not to mention the fabrication cost us parts and time, so who cares? How many show quality f-bodies have you seen with a fully functional non-back halved car with a IRS?
Basically, in all reality it comes down to customer/personal preference. The fact of the matter is, Jay's Formula will take a turn faster and feel more stable doing so then my Firebird EVER will. The suspension is amazing. There are ZERO facts that prove that the IRS is a waste because the term 'waste' is irrelevant to someone who enjoys their car when they put money into it.
03-14-2011, 09:23 AM
#111
I gotta agree with tbird... I watched Jay leave a meet one night and actually get on his car after he did the six speed swap. The car performed flawlessly IMO... no wheel hop or anything. The *** end just squatted down and shot forward. And for the naysayers... they actually have IRS set ups that have been known to take the abuse in the power range up to 1200 horses for the C4 vettes.. and yes... it was for drag racing purposes.
04-11-2011, 07:05 PM
#116
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I tend to side with Lee on this one. The C4 IRS is one of the best things I have done, it carves corners now like no other 4th gen I have ever driven. I easily best anything I ever did in it before in the corners and that was with everything you could do to the live axle except the watt's link. It just comes back to personal preference, it was far cheaper for me to do this than buy a vette, it was more gratifying, and it is a heck of a fun ride now!
There are many headaches, but you have to go in expecting that with this kind of a project. Through Lee's and my help with pointers for anyone who needs them, it honestly wouldn't be that bad! Total cost for me was 1K.
There are many headaches, but you have to go in expecting that with this kind of a project. Through Lee's and my help with pointers for anyone who needs them, it honestly wouldn't be that bad! Total cost for me was 1K.
08-13-2011, 11:29 AM
#117
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08-13-2011, 01:59 PM
#118
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As the owner of a Tbird, I can tell you they are not F body cars. Ford designates their cars differently than GM. My Thunderbirds are MN12 cars. And they are not "Pony Cars". The Tbirds weigh alot more and are larger than the "pony cars".
Last edited by BS; 08-13-2011 at 02:07 PM.
08-14-2011, 11:21 AM
#119
TECH Senior Member
An "F" body is GMs chassis code for the Camaro/Firdbird chassis. Just like the "Y" body is the Corvette, or "J" body is the cavalier/sunbird for example. Its just a simple 1 letter code for the chassis.
Most other manufacturers label chassis similar to this, like Ford's 4th gen mustang is a "sn-95" chassis code, and their 5th gen mustang is a "S-197", and the thunderbird your talking about is on ford's "MN12" platform.
The Fbody was never designed to have IRS so naturally its a pain to get one installed, setup and working properly.
