Help Me With My Exhaust Pick !

[zayd687]

hi guys

as previously posting here ive converted my xt into a turbo at home.

I've got a custom 3 inch stainless steel/mildsteel dump pipe made ( cost me 350.00 ).

it connects into 3 inch cat into a 2.5 inch all the way back to the diff where it separates and has 2.5 inch exits on both sides ( from the diff) ( 2 x 2.5inch outlets like a " [ " )

I've talked to my tuner who is urging me to either a) get a 5inch cat, 4inch dump pipe and a twin 2.5 inch exhaust.

now I've already spent alot of money which I've told him and his suggestion is to get a 5 inch cat and a stock xr6 turbo exhaust and that should net me 280rwkw about with 8 psi.

im only after 260rwkw. ive got cams stage 2 in them, soon going to fit walbro 341 255 litres fuel pump, bosch 440cc injectors ( green top ). and now im not sure how to go about the exhaust.

should I just get a 2.5inch twin exhaust catback and just a 4 inch cat? or should I just get a standard exhaust and leave the cat.

whats your guys suggestions ... im happy with 260rwkw because my transmission mite fail ( its an auto)

any advice would be appreciated I cant sleep!!!!!!!!!! and the car needs a tune/exorcism.. its gone wacky.

im pretty restricted with my funds :(

[arronm]

You should have just thrown on a stock BA or FG turbo exhaust (turbo to tip). But for now just change the 2.5 section from the cat to where it separates (diff) to 3 inch. Why dont you start off with a mild tune of say 250. what cooler do you have.

[zayd687]

do you suggest I should change the cat aswell?

I didnt think the fg stock exhausts would fit.

its a stock cooler, as im onli running under 10 pounds. the block itself cant handle I think more then that otherwise upgraded valves n a stronger bottom end id need. id be running 8 pounds.

[Panda Eyes]

unfortunately youve wasted your money if you want decent power. a stock ba xr6t exhaust is trin 2.25"- youve gone backwards from stock....

[zayd687]

I didnt think 3 years ago I'd put a turbo on the car. any suggestions?

[Ralph Wiggum]

Find somebody looking for and exhaust upgrade for an NA 6cyl, Sell them the exhaust you have, Pick up cheap second hand turbo exhaust. Pocket the difference.

[Dillz]

Agreed.

I'm pretty sure the Ba exhausts were ok for that power but you could always throw in a high flow cat before you put it on the car.

Sorry to say but a bit of research would of steered you clear of the exhaust you had made up as it's just way to small for these cars.

But if you can find a Ba turbo exhaust they arnt that expensive I've seen people even give them away before.

[zayd687]

Find somebody looking for and exhaust upgrade for an NA 6cyl, Sell them the exhaust you have, Pick up cheap second hand turbo exhaust. Pocket the difference.

called wreckers

they quoted me 350.00 for the whole exhaust off a ba turbo. is this fair?

[Ralph Wiggum]

$350 is fair, check out the classifieds and/or put a wanted ad in there. Turbo exhaust come up all the time. Average moving price IMHO would be around the $250 mark

[zayd687]

Agreed.

I'm pretty sure the Ba exhausts were ok for that power but you could always throw in a high flow cat before you put it on the car.

Sorry to say but a bit of research would of steered you clear of the exhaust you had made up as it's just way to small for these cars.

But if you can find a Ba turbo exhaust they arnt that expensive I've seen people even give them away before.

I thought 2.5 inch was enough for the barra 6 n/a?

I understand I made a mistake with the dump pipe. im trying to rectify it, its all been a big learning point for me. never understood that these cars were in need of such big exhaust systems... still amazes me. I actually first took the tuner as joke when he said it then I realised I was the joke for installing a 3inch dump pipe :(