lamboiah

Does anyone know how many teeth the bh5/Be engine cam/timing belt has?

I removed the intercooler and did a prelim check of the turbos. Both had no sign of oil in the turbo outlets but oil was in the intercooler and intercooler hoses. I'll do a check of the turbine blades (intake) this weekend.

I 've got a 2000 JDM GTB with 120km on the clock. When I got it at about 90km it was flying. The primary would chime in at about 3.5-4rpm and the secondary would join in at about 4.5rpm. I've since done minor mods and I have some parts wear and it's just not the same. I installed: boost gauge a pod intake a 3" inlet and 4" outlet megan exhaust I do regular oil changes and cleaned my spark plugs at about 100km. I problem started after I got the megan exhaust installed. The "installer" did a terrible job and created much pressure. He removed the rear exhaust valve and used the bypass pipe to attach the megan. He cut the former main pipe to the stock exhaust and welded it shut. I almost immediately realized a loss of response from the primary but the secondary seemed okay. Very interestingly the boost gauge shows 9-10psi for the primary then drops to about 6psi during the vod then returns to 10psi when the secondary finally cuts in at about 5-5.5k rpm. Even with the boost gauge figures the power drop is very noticeable. I also realized that I have a bad clutch. This is made very clear when I try to do steep hill starts. I have to use too much throttle and can smell the clutch burning. I tried the car with the pod and no pipes from the front y pipe and there was no increase in response or power. I've since cut off the megan and opened the welded shut primary pipe. so the rear I two open pipes from the y join. I've returned to the stock intake box and panel filter and tere is a slight improvement in response. I'm wondering: 1. Are my turbos okay but there is just too much power loss at the flywheel? (due to bad clutch) 2. Have I damaged my engine by driving way too fast with a poorly flowing exhaust? ( Ihave oil leaks from the lhs valve cover and from the rear of the engine. THe oil level is ok though.) 3. Is it possible that I have clogged primary and secondary cats? (I've been told that my secondary cat looked clogged) I want to: 1. remove the secondary cat and run a 2.5" from the front y pipe to the rear diff flange, then do a 2.5" to 3" adapter and 3" pipe back to the megan muffler 2. replace my clutch with a f1 stage 2 and lightened flywheel Does anyone think that this will improve my power problem?

Yes I considered that the stock does the same thing, but only at low rpms and/or partially throttle. When you're at high rpms or floor the pedal the butterfly opens up and there's a definite difference in sound and performance as the valve opened. When I got the car back the clocks were all unset so I know the battery terminal was disconnected. I just don't know when...

I believe you're on the right track. The problem is not with my turbos as they are boosting as usually according to the boost gauge. The car is just not going when the secondary should kick in. I think there's too much back-pressure with this setup.

No it's the stock JDM setup. The stock tubing splits just before the oem muffler. The welder's job just capped one of the tubes instead of removing it. Can this adversely affect boost pressure?

Does anyone think that my boost could be affected by the setup?

Yeah I agree with you guys about the refund. I'm definitely going after that! Can any one suggest how to get from the 2.5" tubing before the diff-back to the 3" muffler?

No actually I asked him to tell me what I needed to get it done. I expected him to give me a list of bends and sizes but he said he could get it done. Didn't expect this at all. I'm sourcing the bends and will have it redone.

I just got a 3" in/4" out megan exhaust installed. The installer really messed things up though!! He cut the main tube to the stock exhaust and capped it, then welded a 2 1/4 or 2 1/2" tube from the 3" megan to the bypass tube. My 9th grade knowledge of physics suggests to me that this severely affects my flow. My problem is that my boost still reads the same boost on primary and secondary but the car just doesn't have the same go as before. [*]Is the boost loss totally due to the exhaust job [*]What should I do when it is rectified? [*]do 3" bends from the megan then reduce to 2.5"? or, [*]do the reduction at the megan then do the bends in 2.5" tubing