Any good install threads for American racing headers w/o cats 1 7/8 on a 2008 GT500? Pics would be great! Lesson learned and "watch out for..." is also welcome.
Thanks
Install thread for ARH
Started by
SLAMiAM
, Jul 01 2012 01:57 PM
headers arh american racing install
4 replies to this topic
#1 OFFLINE
Posted 01 July 2012 - 01:57 PM
Molon Labe
#2 OFFLINE
Posted 02 July 2012 - 06:52 PM
to add on to SLAMiAM's post has anyone installed the 2" ARH headers and can you remove the transmission to access the clutch with ANY of there headers?
Engine:
Whipple mono blade TB
2.6" Metco Pulley
C&L Cold Air Kit
Metco Belt Tensioner
Thump RRR racing Tensioner
Innovators West 15% over Harmonic Balancer
Jon Lund Tune
Cooling:
AFCO Dual Fan Heat Exchanger
C&R Radiator
JLT brake cooling kit
Drivetrain:
FRPP Shifter
FRPP Black Shift Knob and Handle
Drive shaft shop 3.5" Aluminum 1-Piece Driveshaft
Steeda Driveshaft Safety Loop
Exhaust:
Bassani Long tubes, off-road mid pipes, home made H-pipe, 18" glass packs
Styling:
Shelby GT500 SuperSnake Quarter Window Scoops
Shelby Quarter Widow Interior Trim (Block Off Plate)
Shelby CS6 Side Scoops
Trufiber venom II hood with twist lock hood pins
25% Lumar tint on all windows
Suspension:
Steeda adjustable upper control arm and bracket
Eibach pro springs
Wheels:
Stock GT500 Wheels F:18x9.5 & R:18x9.5
Tires:
F:Goodyear F1 supercar 255.45.18 & R: Nitto 555r 305.35.zr18
Dyno
Stock = 441 rwhp & 454 rwtq
Now 687 rwhp & 700 rwtq on C-16
Whipple mono blade TB
2.6" Metco Pulley
C&L Cold Air Kit
Metco Belt Tensioner
Thump RRR racing Tensioner
Innovators West 15% over Harmonic Balancer
Jon Lund Tune
Cooling:
AFCO Dual Fan Heat Exchanger
C&R Radiator
JLT brake cooling kit
Drivetrain:
FRPP Shifter
FRPP Black Shift Knob and Handle
Drive shaft shop 3.5" Aluminum 1-Piece Driveshaft
Steeda Driveshaft Safety Loop
Exhaust:
Bassani Long tubes, off-road mid pipes, home made H-pipe, 18" glass packs
Styling:
Shelby GT500 SuperSnake Quarter Window Scoops
Shelby Quarter Widow Interior Trim (Block Off Plate)
Shelby CS6 Side Scoops
Trufiber venom II hood with twist lock hood pins
25% Lumar tint on all windows
Suspension:
Steeda adjustable upper control arm and bracket
Eibach pro springs
Wheels:
Stock GT500 Wheels F:18x9.5 & R:18x9.5
Tires:
F:Goodyear F1 supercar 255.45.18 & R: Nitto 555r 305.35.zr18
Dyno
Stock = 441 rwhp & 454 rwtq
Now 687 rwhp & 700 rwtq on C-16
#3 OFFLINE
Posted 04 July 2012 - 03:28 AM
I did a couple of 1 7/8" ARH installs. First one was on a friends car. During the install the stock motor mounts were swapped out for some billet lowering mounts to fit the KB blower. This made access to a few bolt/studs a bit easier. The k-member was also carefully lowered a tad. You may want to make some marks before doing this, so when you tighten it back up, you will lessen the need for a wheel alignment. Not 100% sure, but I think we also loosened or removed the trans crossmember. Because of the lowering mounts, a couple of primaries had to be dimpled on the driver's side to clear the steering shaft. I also think we removed the starter, but again, not 100% sure.
Other tips:
You should remove the battery and tray for access to the EGR valve connection on the passenger side.
You will be reusing the factory gaskets.
Don't get hung up on trying to use all the ARH supplied header bolts. You'll need to reuse some of the factory studs/nuts in some areas.
Be careful/patient not to cross thread or strip the holes in the aluminum head.
Don't drink, take your time, and be prepared for a little cursing. I did my car by myself, and I think I invented a few curse words. LOL!
On my car, I swapped out the K-member for an engine lowering tubular unit which made things alot easier. Since I knew I would need an alignment, I pushed the k-member to the passenger side for a little extra clearance with the steering shaft. I only had to dimple the #3 primary tube.

I had my car up on a lift at my tuner's shop, and he said he thought the trans could come out without touching the headers. IMO, I think one side may have to be loosened up just a little.
Good Luck!
Other tips:
You should remove the battery and tray for access to the EGR valve connection on the passenger side.
You will be reusing the factory gaskets.
Don't get hung up on trying to use all the ARH supplied header bolts. You'll need to reuse some of the factory studs/nuts in some areas.
Be careful/patient not to cross thread or strip the holes in the aluminum head.
Don't drink, take your time, and be prepared for a little cursing. I did my car by myself, and I think I invented a few curse words. LOL!
On my car, I swapped out the K-member for an engine lowering tubular unit which made things alot easier. Since I knew I would need an alignment, I pushed the k-member to the passenger side for a little extra clearance with the steering shaft. I only had to dimple the #3 primary tube.

I had my car up on a lift at my tuner's shop, and he said he thought the trans could come out without touching the headers. IMO, I think one side may have to be loosened up just a little.
Good Luck!
'09 GT500 Coupe
Key Mods:
VMP TVS, M&H 345/35/18 Drag Radials, Weld 18" x 12" Wheels, Zombeast Rear Bumpstop Relocation Brackets (stilll available)
Tuned by Kevin Hand of Wicked Motorsports at Sansone Ford
SAE 750 rwhp, 751 rwtq
Best E.T to date with 18" drag radials:
60' 1.799
1/8 6.876 @ 108.91
1/4 10.481 @ 138.58
Vid: http://youtu.be/SMoNZSQ1oB8
Key Mods:
VMP TVS, M&H 345/35/18 Drag Radials, Weld 18" x 12" Wheels, Zombeast Rear Bumpstop Relocation Brackets (stilll available)
Tuned by Kevin Hand of Wicked Motorsports at Sansone Ford
SAE 750 rwhp, 751 rwtq
Best E.T to date with 18" drag radials:
60' 1.799
1/8 6.876 @ 108.91
1/4 10.481 @ 138.58
Vid: http://youtu.be/SMoNZSQ1oB8
#4 OFFLINE
Posted 20 November 2012 - 01:38 PM
zombeast, on 04 July 2012 - 03:28 AM, said:
I did a couple of 1 7/8" ARH installs. First one was on a friends car. During the install the stock motor mounts were swapped out for some billet lowering mounts to fit the KB blower. This made access to a few bolt/studs a bit easier. The k-member was also carefully lowered a tad. You may want to make some marks before doing this, so when you tighten it back up, you will lessen the need for a wheel alignment. Not 100% sure, but I think we also loosened or removed the trans crossmember. Because of the lowering mounts, a couple of primaries had to be dimpled on the driver's side to clear the steering shaft. I also think we removed the starter, but again, not 100% sure.
Other tips:
You should remove the battery and tray for access to the EGR valve connection on the passenger side.
You will be reusing the factory gaskets.
Don't get hung up on trying to use all the ARH supplied header bolts. You'll need to reuse some of the factory studs/nuts in some areas.
Be careful/patient not to cross thread or strip the holes in the aluminum head.
Don't drink, take your time, and be prepared for a little cursing. I did my car by myself, and I think I invented a few curse words. LOL!
On my car, I swapped out the K-member for an engine lowering tubular unit which made things alot easier. Since I knew I would need an alignment, I pushed the k-member to the passenger side for a little extra clearance with the steering shaft. I only had to dimple the #3 primary tube.

I had my car up on a lift at my tuner's shop, and he said he thought the trans could come out without touching the headers. IMO, I think one side may have to be loosened up just a little.
Good Luck!
Other tips:
You should remove the battery and tray for access to the EGR valve connection on the passenger side.
You will be reusing the factory gaskets.
Don't get hung up on trying to use all the ARH supplied header bolts. You'll need to reuse some of the factory studs/nuts in some areas.
Be careful/patient not to cross thread or strip the holes in the aluminum head.
Don't drink, take your time, and be prepared for a little cursing. I did my car by myself, and I think I invented a few curse words. LOL!
On my car, I swapped out the K-member for an engine lowering tubular unit which made things alot easier. Since I knew I would need an alignment, I pushed the k-member to the passenger side for a little extra clearance with the steering shaft. I only had to dimple the #3 primary tube.

I had my car up on a lift at my tuner's shop, and he said he thought the trans could come out without touching the headers. IMO, I think one side may have to be loosened up just a little.
Good Luck!
#5 OFFLINE
Posted 20 November 2012 - 01:39 PM
zombeast, on 04 July 2012 - 03:28 AM, said:
I did a couple of 1 7/8" ARH installs. First one was on a friends car. During the install the stock motor mounts were swapped out for some billet lowering mounts to fit the KB blower. This made access to a few bolt/studs a bit easier. The k-member was also carefully lowered a tad. You may want to make some marks before doing this, so when you tighten it back up, you will lessen the need for a wheel alignment. Not 100% sure, but I think we also loosened or removed the trans crossmember. Because of the lowering mounts, a couple of primaries had to be dimpled on the driver's side to clear the steering shaft. I also think we removed the starter, but again, not 100% sure.
Other tips:
You should remove the battery and tray for access to the EGR valve connection on the passenger side.
You will be reusing the factory gaskets.
Don't get hung up on trying to use all the ARH supplied header bolts. You'll need to reuse some of the factory studs/nuts in some areas.
Be careful/patient not to cross thread or strip the holes in the aluminum head.
Don't drink, take your time, and be prepared for a little cursing. I did my car by myself, and I think I invented a few curse words. LOL!
On my car, I swapped out the K-member for an engine lowering tubular unit which made things alot easier. Since I knew I would need an alignment, I pushed the k-member to the passenger side for a little extra clearance with the steering shaft. I only had to dimple the #3 primary tube.

I had my car up on a lift at my tuner's shop, and he said he thought the trans could come out without touching the headers. IMO, I think one side may have to be loosened up just a little.
Good Luck!
Other tips:
You should remove the battery and tray for access to the EGR valve connection on the passenger side.
You will be reusing the factory gaskets.
Don't get hung up on trying to use all the ARH supplied header bolts. You'll need to reuse some of the factory studs/nuts in some areas.
Be careful/patient not to cross thread or strip the holes in the aluminum head.
Don't drink, take your time, and be prepared for a little cursing. I did my car by myself, and I think I invented a few curse words. LOL!
On my car, I swapped out the K-member for an engine lowering tubular unit which made things alot easier. Since I knew I would need an alignment, I pushed the k-member to the passenger side for a little extra clearance with the steering shaft. I only had to dimple the #3 primary tube.

I had my car up on a lift at my tuner's shop, and he said he thought the trans could come out without touching the headers. IMO, I think one side may have to be loosened up just a little.
Good Luck!
Also tagged with one or more of these keywords: headers, arh, american, racing, install
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