Toymods Car Club Inc: Tech & Conversions => 1JZ-GTE Twin Pipe mods

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celicamad
Forums Junkie

Location:
newcastle
Registered:
June 2002

Re: 1JZ-GTE Twin Pipe mods	Mon, 14 October 2002 08:55

Manny Firstly how much boost are you running and secondly .what 0-100 times have you done .Power seems a little low .should be more like 205 rwkw One point that i might add is that power gains are based on around 15 psi as are my 0-100 times you cant have too much flow when you say mufflers how many ?? with the twin 2.5 inch pipes you have two mufflers and two resonators.twin 2.5 inch mufflers flow only a little more than one 3 .but you have effectivley four Mufflers(be they reso or muffler) . The problem may well be a Balance problem The two pipes should JOIN at any point for at least 500 mm to even pulses .I assume you have FULL MANDREL BENDS ???? The first few bends Brendon put in my twin 2.5 inch where press bent .But as the rest of the system was Mandrel Bent .So Very little resrtiction was noticed .the 1js whith full MANDREL make about 5 more H.P I have twin 2.5 twin cats joining half way down car into single 3 inch After having brendon do the exhaust i took it To LILLFORD in Thornton and they changed the resonator for an oval straight through muffler and a big roung Straight through rear....VERY QUIET Just as powerfull how many k's on the Soarer Check all hose connections for intercooler(nice and tight) .The same thing happenned once before on a soarer.Interestingly enough peak boost still measured the same but more lag was noticed If you cant work it out bring it up to Newcastle and let Peter(Newcastle Exhausts) have a look at it or even better LILLFORD ....expensive but the best !!! Peter did a very nice job on matts Supra .And the 0-100 times compared where with two people in the car on the second run. So i believe this will go even harder .especially when high flow cats are fitted I think ANY good exhaust shop can fit twin pipes as long as they use 2.5 inch pipe. It would be hard to get a Bulk deal as the pipes are vehicle specific and need different bends for Cressida,soarer and Supra [Report message to a moderator]

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