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It says on the MVP page that these headers fit 92-97 only? Is that because vvti? What would I have to do to make them work on mine? Im thinking they'll bolt right up.
You're welcome. I've researched it a fair bit, and few people have particularly good things to say about N/A header upgrades on the 2JZ. I'd still like to try it out if I ever find a cheap one used, but the likelihood of being a worthwhile upgrade seems too slim to justify retail prices.
Yea I'm wondering if set up with a BFI if this will get you to around the promoted 17whp they say this will add. Although I already have aftermarket exhaust Im curious how much louder this would make it. I wouldn't want too much noise its already a lil beefy.
Other than increased noise levels, which many report as obnoxious, the main downside is loss of low-end torque. The advantage is the 8-17 HP gain, but that's mostly up high where it's rarely used.
The only reason why I'm still interested, given those significant drawbacks, is my application is on a car 500 lbs lighter than stock. I'm curious if the torque loss will matter as much there. Also, it feels like it revs freer with less weight holding it back, so the higher RPM gains might be more attainable.
Yea I'm wondering if set up with a BFI if this will get you to around the promoted 17whp they say this will add. Although I already have aftermarket exhaust Im curious how much louder this would make it. I wouldn't want too much noise its already a lil beefy.
Don't waste your money on that header if you are not taking away your cats and replacing your midpipe / cat back exhaust . You made the exhaust manifold into a free flowing headers but the air flow restriction will still be on the cats and small stock exhaust pipes. You get the added hp from a free flowing exhaust if the whole system from the exhaust manifold to the tip of the exhaust is free flowing.
Note : all 2JZGE engines regardless if it is VVTi or NOn VVTi have exactly the same intake and exhaust flanges used to mate the manifolds on the Cylinder Head . That means there should be no reason why that headers will not work in either engine .
Other than increased noise levels, which many report as obnoxious, the main downside is loss of low-end torque. The advantage is the 8-17 HP gain, but that's mostly up high where it's rarely used.
The only reason why I'm still interested, given those significant drawbacks, is my application is on a car 500 lbs lighter than stock. I'm curious if the torque loss will matter as much there. Also, it feels like it revs freer with less weight holding it back, so the higher RPM gains might be more attainable.
Is this docomented on the loss of torque? I don't know why this header would rob low end torque. And yes of course you will notice a loss of torque, it will matter regardless of the weight savings.
SO this application is much lighter than stock? And Gerrb you're right I wasn't going to buy it for retail. I figured to get the HP gains Id have to do full exhaust and intake my plans were to do BFI and 3inch all the way back with my blitz nur spec dual pipes. What do you think about that setup in terms of HP gains and low end torque loss?
Is this docomented on the loss of torque? I don't know why this header would rob low end torque.
I don't recall if it's been documented -- I didn't save dyno sheets in my notes -- but it's been reported plenty. This is the only example I bookmarked:
And yes of course you will notice a loss of torque, it will matter regardless of the weight savings.
You missed the "as much"... My thinking is, a lighter car needs less torque to get moving. Once the RPMs are up, any low-end loss shouldn't be much of a concern.
MVP 2jzge headers, will they fit 99?
