having downpipe come out fender?

[ray jr]

i have a twin turbo new body style trans am and we are going to have the downpipes exit out the fenders like on golobo's car . my question is once we cut the holes in the fenders is there a insert available to cover around were we cut so you dont see the imperfections were we cut. maybe like a carbon fiber piece that could be attached to the downpipes. thanks ray

[zaffman]

i have a twin turbo new body style trans am and we are going to have the downpipes exit out the fenders like on golobo's car . my question is once we cut the holes in the fenders is there a insert available to cover around were we cut so you dont see the imperfections were we cut. maybe like a carbon fiber piece that could be attached to the downpipes. thanks ray


Someone told me vanishing point has them!!

[gilsbachracecraft]

i have a twin turbo new body style trans am and we are going to have the downpipes exit out the fenders like on golobo's car . my question is once we cut the holes in the fenders is there a insert available to cover around were we cut so you dont see the imperfections were we cut. maybe like a carbon fiber piece that could be attached to the downpipes. thanks rayI just make em out of tin and hammer a rolled edge in them around the exhaust.Store bought stuff never fits.

[DHR racecars]

Just buy a hole saw that is a 1/2" bigger diameter than your pipe and you will be good to go......:yawinkle:

[JSpencer]

This is from VP....

Stainless Steel
Header Fender Exits

http://www.vpracecars.com/userimages/HED-19.jpg
HED-19A - $50.00 eachSS Scalloped Header Fender Exit 6.1875" x 4.8125" ID HoleHED-19B - $50.00 each SS Scalloped Header Fender Exit 7" x 6.2501" ID HoleHED-19C - $50.00 each SS Scalloped Header Fender Exit 6" x 5.5" ID Hole

http://www.vpracecars.com/userimages/HED-20.jpg
HED-20A - $50.00 eachSS Oval Header Fender Exit 6.8125" x 6.3108" ID HoleHED-20B - $50.00 eachSS Oval Header Fender Exit 5.8122" x 5.3107" ID HoleHED-20C - $50.00 eachSS Oval Header Fender Exit 6" x 5.5" ID Hole

http://www.vpracecars.com/userimages/HED-21.jpg
HED-21A - $50.00 eachSS Teardrop Header Fender Exit 5.9630" x 5.3600" ID Hole

[George Klass]

Just make sure that if you do run the trubo exhaust out the side through a fender that you have dual turbos, one on each side. Do NOT run a single turbo with the exhaust out the fender.

[Doc Holiday]

Just make sure that if you do run the trubo exhaust out the side through a fender that you have dual turbos, one on each side. Do NOT run a single turbo with the exhaust out the fender.


Why not on a single?

[gilsbachracecraft]

Thrust!You ever see a top fueler drop a cyl. or two and make a move to the left or right depending on which bank dropped cyl.Pretty much same concept but constant pressure out one side of the car.You could still run it out the side if you want just Y it into two smaller pipes.

[zaffman]

Just make sure that if you do run the trubo exhaust out the side through a fender that you have dual turbos, one on each side. Do NOT run a single turbo with the exhaust out the fender.


Good advice never thought of that but we have 2 turbos so no worries!!!

[Doc Holiday]

Wierd, Ive seen lots of cars with the downpipe out only one side and they seem to work fine.

[Doc Holiday]

Like these for example.

http://68.178.140.70/videos/07-02-24-003.wmv

http://68.178.140.70/videos/07-02-17-016.wmv

http://68.178.140.70/videos/07-01-27-008.wmv

[zaffman]

Like these for example.

http://68.178.140.70/videos/07-02-24-003.wmv

http://68.178.140.70/videos/07-02-17-016.wmv

http://68.178.140.70/videos/07-01-27-008.wmv


We dont consider cars making under 1500 HP real race cars those dont count LOL!!!

[Doc Holiday]

You are probably right.

[zaffman]

You are probably right.

I was joking but my guess the pressure isnt nearly the same even with what we have compaired to a funny car making 5000HP. But I think it makes sense having 1 on each side in theory anyways!!

[George Klass]

Many years ago, John Gullett had a single turbo with a side exhaust near his front wheel. He always had handling issues near the lights, from the 1000' mark. This was with his old green FOX Pro 5.0 Mustang. He changed the exhaust to go straight back, under the car, and on the first pass, the car went straight as an arrow and was the first Pro 5.0 to break the 200 MPH barrior.

If anyone remembers, Steve Grebeck had a side exhaust too, near the middle of the driver's door. Steve's father, Grant Grebeck told me that he felt that this was one of the causes of the car making the big hook to the left at the 1000' mark.

Anyone that has ever watched the TV show of an NHRA event, where they have that camera out over the track, past the lights, with the cars comming at you, and seen what happens to a funny car or a top fuel car when they lose a cylinder can understand the dynamics involved. All of the thrust of a 2000+ HP turbo engine, coming out of only one side, has got to have a bad effect.

[zaffman]

Thrust!You ever see a top fueler drop a cyl. or two and make a move to the left or right depending on which bank dropped cyl.Pretty much same concept but constant pressure out one side of the car.You could still run it out the side if you want just Y it into two smaller pipes.


Do you have any carbon fiber ends? for the exhaust coming out the fender?

[gilsbachracecraft]

Do you have any carbon fiber ends? for the exhaust coming out the fender?The rings I make are alum.I either have the powdercoated or polished.They are never the same from car to car and do not mount to the exhaust pipe.The pipe is mounted and then the ring is made and then the pipe is cut.I like to have a smaller gap bettween the ring and pipe than most so a mass produced piece will not work especially since exaust exit angles are are never the same nor the shape of the fender.Sorry I don't have any close-ups
http://www2.propichosting.com/Images/450019407/1.bmp
http://www2.propichosting.com/Images/450019407/2.jpg
http://www2.propichosting.com/Images/450007091/25.jpg
http://www2.propichosting.com/Images/450007091/30.JPG

[Mark Kasperan]

You learn something new every day!

[gilsbachracecraft]

perfect example of thrust
http://www.madmancoracing.com/madman-racing.wmv

[zaffman]

The rings I make are alum.I either have the powdercoated or polished.They are never the same from car to car and do not mount to the exhaust pipe.The pipe is mounted and then the ring is made and then the pipe is cut.I like to have a smaller gap bettween the ring and pipe than most so a mass produced piece will not work especially since exaust exit angles are are never the same nor the shape of the fender.Sorry I don't have any close-ups
http://www2.propichosting.com/Images/450019407/1.bmp
http://www2.propichosting.com/Images/450019407/2.jpg
http://www2.propichosting.com/Images/450007091/25.jpg
http://www2.propichosting.com/Images/450007091/30.JPG

Ya I saw his car up close at Milan last year when he was there with petty for the 1st time with new combo. The car looked great you guys did a nice job on it. Our car is at Pande's shop now we repositioned the turbos due to the fact we got rid of the radiator and fuel cell because we are going alchy so more room up front also had to add some bars to get the 25.2 cert. I saw the exhaust exit on the camareo and thought it would be functional and nice looking on the TA we have. Was hoping to buy a insert kinda hard to take the car to another shop for just that purpose hehe!!! Where is your shop located?

[gilsbachracecraft]

96 east to (2 miles)to middlebelt south(2miles) on left just after joy rd ,8630 middlebelt,rear building.4.21 miles total.