Prof. Monkey Posted December 9, 2005 Share Posted December 9, 2005 This is for the NA Supra, converts to a TT style, there are few modifications to fit. Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 9, 2005 Share Posted December 9, 2005 Is this something you have had made, or something you are thinking of buying? Link to comment Share on other sites More sharing options...
RobSheffield Posted December 9, 2005 Share Posted December 9, 2005 and also, why? Link to comment Share on other sites More sharing options...
Prof. Monkey Posted December 9, 2005 Author Share Posted December 9, 2005 Bought! It is a bespoke item for the NA supra. Just needs a little modification to fit. My little project over the winter. Our standard intakes run over the top of the exhaust and engine and do not have the benefit of intercooling. Also the volume of the manifold is greater. Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 9, 2005 Share Posted December 9, 2005 Hmm, it really should have a full radius bell mouth on each port runner, inside the plenum. It would be interesting to stick it on a flow bench to se what port velocity variations there are. It'll work, obviously, but how compromised it will be without bell mouths is hard to say without measuring it. Link to comment Share on other sites More sharing options...
Prof. Monkey Posted December 9, 2005 Author Share Posted December 9, 2005 When it arrives, well after Xmas, Chris I could whip down and let you have a butchers if you wish! Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 9, 2005 Share Posted December 9, 2005 I'd be interested to see it. I have a head on the flow bench at my head porter of choice, so if you wanted to spend MORE money he could have a look at it. Not sure how much he'd charge JUST to flow it, probably not a fortune, and it could show if there was any likelyhood of cylinders getting different air flows. Link to comment Share on other sites More sharing options...
SatSport Posted December 9, 2005 Share Posted December 9, 2005 certainly doesn`t hold DaveH back, does it Daz? :whistle: Link to comment Share on other sites More sharing options...
Prof. Monkey Posted December 9, 2005 Author Share Posted December 9, 2005 Well this guy has been making them for a while in the US and they seem to be going with no problems! Link to comment Share on other sites More sharing options...
RobSheffield Posted December 9, 2005 Share Posted December 9, 2005 do not have the benefit of intercooling. you arent going to put an intercooler on you NA are you? Link to comment Share on other sites More sharing options...
Prof. Monkey Posted December 9, 2005 Author Share Posted December 9, 2005 Err, no that would be daft on an NA surely? Would not get enough air pressure to feed the engine! Link to comment Share on other sites More sharing options...
RobSheffield Posted December 9, 2005 Share Posted December 9, 2005 Err, no that would be daft on an NA surely? Would not get enough air pressure to feed the engine! Phew - im glad about that from your post i quoted, i was a little worried where will you run the air intake ducting then? Link to comment Share on other sites More sharing options...
Prof. Monkey Posted December 9, 2005 Author Share Posted December 9, 2005 Battery is being relocated to inside/being replaced with a Gel type. Hole being cut underneath battery tray and a short pipe being fed through, either to a filter inside the inner n/s wing with a heat shield. Or a short pipe with filter then a cold air feed onto the filter from the outside, whichever works out better?!? Ala Pipercross stylee.... Bit of fun on a NA! Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted December 9, 2005 Share Posted December 9, 2005 nice one mate, hope it works well Link to comment Share on other sites More sharing options...
SatSport Posted December 9, 2005 Share Posted December 9, 2005 a short pipe with filter then a cold air feed onto the filter from the outside, alternatively continue said piping back up through to the zorst side where lo and behold an overgrown snail resides ................. you know it makes sense m8ty:p Link to comment Share on other sites More sharing options...
Prof. Monkey Posted December 9, 2005 Author Share Posted December 9, 2005 Yes Satsport I know exactly what you mean ;-) Soon, my friend, soon. Must keep the lady happy, not too many Supra purchases! Link to comment Share on other sites More sharing options...
black cat Posted December 9, 2005 Share Posted December 9, 2005 the bath mat looks sweet mate,, nice and pink......... tt steve Link to comment Share on other sites More sharing options...
Prof. Monkey Posted December 9, 2005 Author Share Posted December 9, 2005 Give me your address and we will have it shipped to you! Link to comment Share on other sites More sharing options...
Pete Posted December 9, 2005 Share Posted December 9, 2005 It does look a little rough around the edges, I'd go with the flow (test). What gains are you hoping to achieve with this? Link to comment Share on other sites More sharing options...
bromy Posted December 9, 2005 Share Posted December 9, 2005 I think we should try it on mine first:p, you may also have to relocate the p/s reservoir I'd also like a look at it Dazsir Link to comment Share on other sites More sharing options...
Prof. Monkey Posted December 9, 2005 Author Share Posted December 9, 2005 I think we should try it on mine first:p, you may also have to relocate the p/s reservoir I'd also like a look at it Dazsir You are not to far from Hull to pop over and compare notes. Link to comment Share on other sites More sharing options...
Digsy Posted December 9, 2005 Share Posted December 9, 2005 Did you know that the stock NA plenum is actually a quite trick twin-mode variable length system? The one you've bought...erm...isn't. Link to comment Share on other sites More sharing options...
Lazarus Posted December 9, 2005 Share Posted December 9, 2005 As far as I was aware, these types of intakes are only any good on an Na if you are going Na-T. I believe the purpose of this type of intake on the Na-T is to allow for a shorter run of intercooling pipework, TT style, so you don't have to route the pipework from the intercooler outlet back across the car to the offside (plus the benefit of removing the pipework from the top of the engine where its hot!) and you can run a larger throttle body, which are both mods which benefit a turbo, but not necessarily an Na. The Na Induction piping is tuned in length to create more torque (and there's a valve in there somewhere to shut off 1 of the runners where it splits into 2), so I believe if your gonna mount this on an Na your gonna see a marked loss in low end torque in trade off for a bit of top end power.(There was a thread on this a while ago, I'll see if I can find it) I'm not saying your "doing it wrong", just interested in what your trying to achieve and the gains you hope to make. Are you gonna Dyno it before and after the mod so the results can be quantified? Link to comment Share on other sites More sharing options...
Digsy Posted December 10, 2005 Share Posted December 10, 2005 The Na Induction piping is tuned in length to create more torque (and there's a valve in there somewhere to shut off 1 of the runners where it splits into 2), so I believe if your gonna mount this on an Na your gonna see a marked loss in low end torque in trade off for a bit of top end power.(There was a thread on this a while ago, I'll see if I can find it) Almost. It doesn't shut one runner off, but rather short-circuit the two halves of the plenum by joining them directly together rather than via the two secondary pipes immediately after the throttle valve. But the net effect is the same as a twin length system. Two harmonics in the intake system: one for low end torque and one for top end power. Link to comment Share on other sites More sharing options...
Lazarus Posted December 10, 2005 Share Posted December 10, 2005 Almost. It doesn't shut one runner off, but rather short-circuit the two halves of the plenum by joining them directly together rather than via the two secondary pipes immediately after the throttle valve. But the net effect is the same as a twin length system. Two harmonics in the intake system: one for low end torque and one for top end power. Ahh! Yeah! That was it. I'm still trying to find that other thread where this was discussed. Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now