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| luke111 |
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What sort of rear wheel power would I be limited to if I used a 3" mandrel bent system? Is 200kw at the tyres achievable?
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| ebs_4l |
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high 300's at the treads is achieable, beyond that you should be looking for 3.5in
_________________ EB 4L, 8.4:1, R154, GT4202r, 4in exhaust, Greenslade Engineering exhaust manifold, plenum chamber, 90mm throttle, Garrett W2A cooler, Surecam custom, autronic SM4, Bosch 120lb, Crane HI-6, LX-92, LM-1, Turbosmart Reg, 2x bosch 044, turbosmart 48 gate. 470kw+ @ 18PSI |
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| Dansedgli |
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What kind of cat are you running ebs? You have a 3 inch exhaust dont you?
Ive already got a 3 inch dump pipe but thinking about running a 3.5 inch dump to twin 2.5 inch exhaust like the XR6 T's if it can fit. I want to keep the noise down. |
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| EBXR8380 |
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I had single 3" and it maxed out at 370 rwkw...
On a 5.4 Windsor with two 61mm turbo's...
_________________ As in ZOOM 126 edition |
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| fritzz |
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here is a graph of approx exhaust power figures. this is out on the maximum boost turbo design book.
_________________ # 1997 EL Falcon GLI - 600+rwkw |
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| ebs_4l |
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i want to upgrade my system to a 3.5in, currently i have full 3in, no cat. one straight through lukey race muffler, its just a perforated baffle pipe through glass pack. its not very loud at all.... what is loud is my screamer pipe. lol
thats also something for you to consider when picking a pipe size, if you plan to plumb the wastegate into the system, with a 3in, then at around the 600HP mark (flywheel) it will cost you about 50HP from the increased backpressure i want to upgrade mine, although i havent tested the backpressure, i feel i have hit a point of diminishing returns, like it is being choked somewhere...
_________________ EB 4L, 8.4:1, R154, GT4202r, 4in exhaust, Greenslade Engineering exhaust manifold, plenum chamber, 90mm throttle, Garrett W2A cooler, Surecam custom, autronic SM4, Bosch 120lb, Crane HI-6, LX-92, LM-1, Turbosmart Reg, 2x bosch 044, turbosmart 48 gate. 470kw+ @ 18PSI |
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| luke111 |
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Thanks all my questions have been answered, 3" it is then. I got some prices and the 3.5" is way more expensive than 3".
Ive got straight gas so im going to remove the cat and run a 3" dump pipe, a single rear straight through offset muffler before the diff and then a mandrel bent 3" tailpipe. Ive got a 40mm wastegate that i will merge into the dumppipe. Does anyone know who makes a 3" taipipe for wagons? (EF) |
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| groper |
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a guy up here has a t-trim vortech blown 308 stroked to 355 with a 3 inch and hes making 650+ rwhp no worries, f**k mean car btw
would be different with a turbo tho, as the bigger the better. |
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| Jim Beam |
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Age: 35 Posts: 3505 Joined: 1st May 2005 Ride: EB Fairmont Location: Northern Suburbs, Adelaide |
luke111 wrote: Thanks all my questions have been answered, 3" it is then. I got some prices and the 3.5" is way more expensive than 3".
Ive got straight gas so im going to remove the cat and run a 3" dump pipe, a single rear straight through offset muffler before the diff and then a mandrel bent 3" tailpipe. Ive got a 40mm wastegate that i will merge into the dumppipe. Does anyone know who makes a 3" taipipe for wagons? (EF) Dump it at the diff.
_________________ Doin it for Scotty. |
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| luke111 |
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I would except its the family wagon man!
Maybe Ill have to use a 2.5" tailpipe with a flange & adapter at the muffler before the diff. |
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