Phil Stagea Posted January 10, 2012 Share Posted January 10, 2012 Hello, I'm a new member and would like to ask, I have recently purchased a 2003 Stagea VQ25DD, and am wondering whether to install a 5/16 Plenum Spacer, My questions, will this help lack of low down torque and as there doesn't seem to be any listed for VQ25 will the G35 one fit, it appears in the photo's to look the same. My problem is I am happy with the car as I couldn't get a 3ltr one when looking, I just find they don't seem to have much umphhh when pulling up a steep driveway?? Hopefully this makes sense, my wife likes the car, I just want it to be a little more exciting, but for the least amount of bucks. Cheers. Link to comment https://www.sau.com.au/forums/topic/387786-plenum-spacer-vq25dd/ Share on other sites More sharing options...
WAGON_BOY Posted January 10, 2012 Share Posted January 10, 2012 (edited) with the 17mm plenum spacer we use on the VQ25DET it improved midrange torque...............dont know if this info helps at all Edited January 10, 2012 by WAGON_BOY Link to comment https://www.sau.com.au/forums/topic/387786-plenum-spacer-vq25dd/#findComment-6182424 Share on other sites More sharing options...
zei20l Posted January 10, 2012 Share Posted January 10, 2012 if our one fits your engine, i have one for sale, brand new with a gasket too! Link to comment https://www.sau.com.au/forums/topic/387786-plenum-spacer-vq25dd/#findComment-6183097 Share on other sites More sharing options...
Phil Stagea Posted January 11, 2012 Author Share Posted January 11, 2012 if our one fits your engine, i have one for sale, brand new with a gasket too! Hello, thanks for replying, could you tell me which kit you have and how much please, what size motor where you going to put it on, and if I can ask, why are you not using it?? Link to comment https://www.sau.com.au/forums/topic/387786-plenum-spacer-vq25dd/#findComment-6183890 Share on other sites More sharing options...
scotty nm35 Posted January 11, 2012 Share Posted January 11, 2012 I'm fairly sure the dd manifolds are different to the det's. Link to comment https://www.sau.com.au/forums/topic/387786-plenum-spacer-vq25dd/#findComment-6184058 Share on other sites More sharing options...
slippylotion Posted January 11, 2012 Share Posted January 11, 2012 Yeah I thought they are similar to the vq35 Link to comment https://www.sau.com.au/forums/topic/387786-plenum-spacer-vq25dd/#findComment-6184082 Share on other sites More sharing options...
PN-Mad Posted January 11, 2012 Share Posted January 11, 2012 (edited) Ok, I think people are confusing two different types of spacer. The one Iain has, goes beneath the inlet manifold and has a row of 6 holes, right? And the OP is looking for a 5/16ths spacer, which generally looks like this- correct? Truth is, I don't know anyone with a VQ25DD with a manifold spacer, and don't know if they are the same plenum. Good luck OP. Heres one for sale: linky Edited January 11, 2012 by PN-Mad Link to comment https://www.sau.com.au/forums/topic/387786-plenum-spacer-vq25dd/#findComment-6184117 Share on other sites More sharing options...
scotty nm35 Posted January 11, 2012 Share Posted January 11, 2012 Those vq35 manifolds still have the 6 hole gasket underneath. Link to comment https://www.sau.com.au/forums/topic/387786-plenum-spacer-vq25dd/#findComment-6184186 Share on other sites More sharing options...
PN-Mad Posted January 11, 2012 Share Posted January 11, 2012 Agreed Scotty, but I don't see anyone making those spacers for vq35's. The Idea of the plenum spacer (in the pic above) is that cyl 1 and 2 are starved of air in the stock position.They are pinched into the front. By raising the Plenum, it allows better breathing for the front cylinders. Thats the idea anyway. After saying all that, I don't have one, nor will I bother Link to comment https://www.sau.com.au/forums/topic/387786-plenum-spacer-vq25dd/#findComment-6184211 Share on other sites More sharing options...
zei20l Posted January 11, 2012 Share Posted January 11, 2012 yeah i have the 6 hole type that sits under the plenum. Link to comment https://www.sau.com.au/forums/topic/387786-plenum-spacer-vq25dd/#findComment-6184663 Share on other sites More sharing options...
iamhe77 Posted January 12, 2012 Share Posted January 12, 2012 if our one fits your engine, i have one for sale, brand new with a gasket too! It doesn't. Only VQ25det and VQ23de strangely Link to comment https://www.sau.com.au/forums/topic/387786-plenum-spacer-vq25dd/#findComment-6185020 Share on other sites More sharing options...
iamhe77 Posted January 12, 2012 Share Posted January 12, 2012 Agreed Scotty, but I don't see anyone making those spacers for vq35's. The Idea of the plenum spacer (in the pic above) is that cyl 1 and 2 are starved of air in the stock position.They are pinched into the front. By raising the Plenum, it allows better breathing for the front cylinders. Thats the idea anyway. After saying all that, I don't have one, nor will I bother LOL... Got one sitting around somewhere... and on an HKS powered V35. Link to comment https://www.sau.com.au/forums/topic/387786-plenum-spacer-vq25dd/#findComment-6185024 Share on other sites More sharing options...
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