Manifold Insulators

[R31Nismoid]

That's not the argument here

[STATUS]

I emailed the manufacturer:

"Dear mace_engineering_group,

Is there any plan to manufacture these for rb26?

I'm shure you guys have done your testing, but there are coolant passages that run through the rb25 manifold... thus the manifold temps will stay close to the coolant temp.

The rb26 intake manifold dose not have any coolant passages so your product may yield better results.

Just an oversilmplified observation.

Cheers

Justin"

"Dear xratedgtr,

Would love to, however we have a lot of other engineering developments on the go plus we're down and engineer

The main reason why these spacers work is that they lengthen the runners and not so much from a cooling perspective (though it certainly does help), which is why they still work well on RB25's

In saying this though I'll put you on the interest list.

Kindest Regards,

Steve"

Take from that what you will...

I bet you now there is no science behind their product.... its a case of the chinas... replicate.... replicate.....replicate it looks like a direct copy

i will trawl trhough the dyno as i have a few VLT and RB25's (jt's is one) that have before and after dyno's. Including same day runs.

[STATUS]

That's not the argument here

haha yeah i better read the whole thread

[Cjmartz2k]

Still not to sure whether this works or not, and I think 10hp is worth $80, but it's not worth the money to pay someone to install it or the pain in the ass of taking the manifold off myself. That's for sure. If I already had everything apart anyways, I'd probably slap on on---assuming I had enough room. I already have adapter plates to get the 26 ITB's onto the 25 head.

[aDrew_C]

Might just get one of these for when my Greddy plenum goes on, bit of a "why not" thing if you have the plenum off already.