Homer Posted May 30, 2007 Share Posted May 30, 2007 dori dori, I suggest you repost your question in the main Technical forum as these discussions are mainly for archive purposes. You'll get a great deal more input there. Quote Link to comment Share on other sites More sharing options...
Guest dori dori Posted May 30, 2007 Share Posted May 30, 2007 Something that I find absolutely astonishing though is that the Protek Supra, has pushed over 30psi on a stock head and I saw the dyno graph the other day... he made peak power at about 9000rpms. He's hoping to dip into the 10's. Anyhow, Grant, if you don't mind me asking, does the Haltech actually control the VVTi or is it simply compatible with it? Also, have you possibly ventured onto http://www.supraforums.com.au ? Let me tell you, there are MUCH more than just 3 VVTi supras running around. It must be an untapped resource for you! Cheers for that. is it possible to see the dyno graph? I was unaware the VVTi rev limit was 7200rpm! This is what i want to find out about. My motor leans over at 6000rpm yet Protek make power to 9000rpm? I was under the impression he was already running low 10s. To the best of my knowledge we are controlling the intake cam from idle up until 4500rpm. At low rpm is at feull advance and slowly retards as the revs rise. I will dig up a more detail answer later tonight. Yes i have been on Supraforums but i don't get any feedback or advise there either. maybe its me? Cheers Quote Link to comment Share on other sites More sharing options...
Guest dori dori Posted May 30, 2007 Share Posted May 30, 2007 Cheers Homer, will do. Quote Link to comment Share on other sites More sharing options...
Guest captdale Posted April 15, 2008 Share Posted April 15, 2008 Hi - New to the forum but looking forward to it. I have a 95' Supra NA/t engine that I am building and would like to get rid of the distributor. Works fine, just gets in the way of the turbo. Am using a AEM EMS. Can I use the TT ignition system on this engine ? I saw a pic of a 98' NA that was a VVT-I. Can I do that mod to my 95' NA ? How about using the 7M-GTE ignition as the profile is much smaller. Any aftermarket ignition systems out there where I can shed the distributor ? Would appreciate any comments. dale Quote Link to comment Share on other sites More sharing options...
Guest Trevlin Posted April 29, 2008 Share Posted April 29, 2008 Might Help http://www.aempower.com/ViewCategory.aspx?CategoryID=122 Quote Link to comment Share on other sites More sharing options...
Guest redsupra31 Posted October 8, 2008 Share Posted October 8, 2008 Terry, I just have my VVTI AUTO-Tiptronic (1year back) and it is runing with standard factory ECU. Just a HKS FCD to increase the boost to 1.1bar With dyno on it, i manage to get 330bhp on wheel. I would like to get another 70bhp on wheel. What is your professional advice? Can my car fit a Apexi Power FC? or just put a HKS V-Cam? 1 cam or both cam? THANKS!! Quote Link to comment Share on other sites More sharing options...
Guest redsupra31 Posted October 8, 2008 Share Posted October 8, 2008 Actually - I'll check myself there. If you feed a solenoid (working against a spring) with a frequency, will it move part way? If so then it may work as a proportional flow valve. I just have my VVTI AUTO-Tiptronic (1year back) and it is runing with standard factory ECU. Just a HKS FCD to increase the boost to 1.1bar With dyno on it, i manage to get 330bhp on wheel. I would like to get another 70bhp on wheel. What is your professional advice? Can my car fit a Apexi Power FC? or just put a HKS V-Cam? 1 cam or both cam? THANKS!! Fuel Cut Defender A piece of electronics that changes the airflow signal to the ECU so that it never sees more than 1 bar of boost. Quote Link to comment Share on other sites More sharing options...
Nic Posted October 9, 2008 Share Posted October 9, 2008 I just have my VVTI AUTO-Tiptronic (1year back) and it is runing with standard factory ECU. Just a HKS FCD to increase the boost to 1.1bar With dyno on it, i manage to get 330bhp on wheel. I would like to get another 70bhp on wheel. What is your professional advice? Can my car fit a Apexi Power FC? or just put a HKS V-Cam? 1 cam or both cam? THANKS!! Fuel Cut Defender A piece of electronics that changes the airflow signal to the ECU so that it never sees more than 1 bar of boost. You won't be able to get another 70hp (wheel) with the stock turbos. The max rear wheel hp achievable on stock turbos is around 360hp. The Power FC was discontinued last year and is very hard to find now, I don't think there was a model available for the VVTi either and they will only work on a manual Supra. The HKS Valcon Plus Vcam Kit Pro would be an option, this includes the intake cam and electronics to control the VVTi, the standard HKS cam will fit on the exhaust side. Quote Link to comment Share on other sites More sharing options...
Guest redsupra31 Posted October 10, 2008 Share Posted October 10, 2008 You won't be able to get another 70hp (wheel) with the stock turbos. The max rear wheel hp achievable on stock turbos is around 360hp. The Power FC was discontinued last year and is very hard to find now, I don't think there was a model available for the VVTi either and they will only work on a manual Supra. The HKS Valcon Plus Vcam Kit Pro would be an option, this includes the intake cam and electronics to control the VVTi, the standard HKS cam will fit on the exhaust side. Nic, thank you very much for your info. max. 360bhp on wheel. Can i just raise the boost to acheive the extra 30bhp n wheel? What is the max. boost can the supra vvti turbo take? 1.4bar? Or i just put in the greedy e-manage ultimate 1st & maximize the potential of the factory ecu with 1.1bar before putting in the hks valcon plus vcam (2cams). Fitting a wideband will it be advisable? Very Important question, how many wheel bhp can the auto tiptronic take up? "This is for my friend, can you quote me the charges for the facelift lights including mail to Malaysia? " Quote Link to comment Share on other sites More sharing options...
mitulparmar787 Posted November 20, 2008 Share Posted November 20, 2008 Regarding the 7200rpm rev-limit, using a HKS Camp 2 to monitor the rev limit, I can confirm on my Aristo with a 2JZ-GTE VVTi, redline is 6800rpm. Don't know if us Aristo guys got the shortend of the stick with the 2JZ-GTE VVTi but just thought I'd throw this in there for those with VVTi engines to confirm. This is when you let the autobox shift gears by itself - will try tiptronic to hold it in gear to see if it makes a difference but doubt it would. Quote Link to comment Share on other sites More sharing options...
wile e coyote Posted November 21, 2008 Share Posted November 21, 2008 Mines a vvti tiptronic and the last dyno was 360bhp but he said its more like 380 as it kept wanted to kick down Its bpu with stock intercooler not sure wat rpm as always looking ahead Quote Link to comment Share on other sites More sharing options...
Guest 98SZR Posted January 7, 2009 Share Posted January 7, 2009 Regarding the 7200rpm rev-limit, using a HKS Camp 2 to monitor the rev limit, I can confirm on my Aristo with a 2JZ-GTE VVTi, redline is 6800rpm. Don't know if us Aristo guys got the shortend of the stick with the 2JZ-GTE VVTi but just thought I'd throw this in there for those with VVTi engines to confirm. This is when you let the autobox shift gears by itself - will try tiptronic to hold it in gear to see if it makes a difference but doubt it would. Sorry to bump older thread but the 6800rpm limit is due to your auto ECU (assuming auto as it is' an aristo). Manual vvti rev limit is 7200rpm. Quote Link to comment Share on other sites More sharing options...
JMB Posted October 30, 2011 Share Posted October 30, 2011 Hi all, Got a 98 vvti tiptronic. I want to upgrade everything, if i want Hks cames, pistons, etc... As my car is vvti Will i change both cames or only the exhaust one ? Quote Link to comment Share on other sites More sharing options...
Nic Posted October 31, 2011 Share Posted October 31, 2011 Hi all, Got a 98 vvti tiptronic. I want to upgrade everything, if i want Hks cames, pistons, etc... As my car is vvti Will i change both cames or only the exhaust one ? The exhaust cam is the same as the non-VVTi, the intake cam is unique to the VVTi Supra. HKS do an intake cam and VVTi controller for the VVTi 2JZ-GTE. 22002-AT004 HKS V Cam 45011-AK001 HKS Valcom II Controller 45999-AK021 Universal Harness 1 http://www.hks-power.co.jp/db/product/files/45011-AK001/45011-AK001.pdf Quote Link to comment Share on other sites More sharing options...
JMB Posted November 1, 2011 Share Posted November 1, 2011 Thanks ! That looks serious ! When i ll start those modification, i won t do anything by myself... Looks too hard for a novice ! Quote Link to comment Share on other sites More sharing options...
Guest v tec Posted September 30, 2012 Share Posted September 30, 2012 someone know the frequency for the solenoid? and when the solenoid is disconnected, it s 0°, when it s 100% duty, it s 30°? Quote Link to comment Share on other sites More sharing options...
Guest Poweronthrough Posted April 7, 2014 Share Posted April 7, 2014 Thread revival I'll be buying a Supra soon and eventually going to a single turbo for big power. I'm a newbie to this so apologies if I sound a bit daft here. I'm looking at the various models and the facelifts look good but have VVTI. I've seen some forum members run VVTI engines with big power but if I have a choice at this point, should I avoid a VVTI engine? I assume the following would need doing? -Remove VVTI cam gear -New inlet manifold -New MAF sensor -More extensive remap than non VVTI engines -Anything else? It's a while off, but I'm wondering if the cost of that work (if it all needs doing) would outweigh the benefits of a facelift model.. Cheers guys Quote Link to comment Share on other sites More sharing options...
Brazil Posted April 7, 2014 Share Posted April 7, 2014 Thread revival I'll be buying a Supra soon and eventually going to a single turbo for big power. I'm a newbie to this so apologies if I sound a bit daft here. I'm looking at the various models and the facelifts look good but have VVTI. I've seen some forum members run VVTI engines with big power but if I have a choice at this point, should I avoid a VVTI engine? I assume the following would need doing? -Remove VVTI cam gear -New inlet manifold -New MAF sensor -More extensive remap than non VVTI engines -Anything else? It's a while off, but I'm wondering if the cost of that work (if it all needs doing) would outweigh the benefits of a facelift model.. Cheers guys Things worth thinking about when going VVTI, is that there are less parts related to it, for instance you decide you want a fully forged engine and all of a sudden one comes available for sale for a great price but its non vvti then you will not be able to use it. VVTI has electronic throttle control so if you like to put a shiny intake plenum then you will have to eliminate the electronic control or get a kit together using for instance a corvette throttle body and pedals. On a very positive side, there has been some vvti supra's with a single turbo install that has made some amazing dyno graphs with lots more low down torque then non vvti. Quote Link to comment Share on other sites More sharing options...
Alex Posted April 7, 2014 Share Posted April 7, 2014 If you're going for big power you'll be going for a standalone ECU. There are enough mappers out there with the ability to utilise PWM VVTI and enough kit. In short it's a question of cash. VVTI base car is more expensive as it's newer. The entire block can be rebuilt - the parts are out there. Every project is wallet or imagination limited. Quote Link to comment Share on other sites More sharing options...
Nic Posted April 7, 2014 Share Posted April 7, 2014 (edited) I'm looking at the various models and the facelifts look good but have VVTI. I've seen some forum members run VVTI engines with big power but if I have a choice at this point, should I avoid a VVTI engine? I assume the following would need doing? -Remove VVTI cam gear -New inlet manifold -New MAF sensor -More extensive remap than non VVTI engines -Anything else? It's a while off, but I'm wondering if the cost of that work (if it all needs doing) would outweigh the benefits of a facelift model.. What sort of power would you be aiming for? What will the car be used for? Edited April 7, 2014 by Nic (see edit history) Quote Link to comment Share on other sites More sharing options...
Guest Poweronthrough Posted April 7, 2014 Share Posted April 7, 2014 Thanks for the replies guys, it does seem there would be a few complications when going for a single turbo on VVTI. What sort of power would you be aiming for? What will the car be used for? Hi Nic, nice simple questions you've asked there and I've been having a think today about exactly what I want to achieve. For a good few months of the year and weather dependant on other days, the Supra would be my daily car, with the occasional track day. My plan was to intially enjoy it as stock and then upgrade to BPU, but purchasing parts which are also sufficient for a single turbo. Then I'm thinking that in a couple years time I would go down the single turbo route, aiming for around 700hp at the crank. Your second question is really making me consider what I actually want though, because if I do want to use it as a daily for say 6 months of the year, then 700hp is overkill really. Maybe I should just go for a good BPU setup...but I would like to keep my options open... Any thoughts or advice is very welcome. Quote Link to comment Share on other sites More sharing options...
James Posted April 7, 2014 Share Posted April 7, 2014 I never actually did the build on my car but it is a VVTi 6 speed with a GReddy T88-34D. It's making 650bhp at 1.3bar at the fly and it is great! No aftermarket plenum. HKS F-Con V Pro ECU. Quote Link to comment Share on other sites More sharing options...
Guest Nicholas Posted April 8, 2014 Share Posted April 8, 2014 Easy to achieve a reasonable power level but the head is restrictive for big big power, plenty of companies in the US offering mind blowing head work on the vvti now though. I say be different go vvti Quote Link to comment Share on other sites More sharing options...
Guest FullAttack Posted June 3, 2014 Share Posted June 3, 2014 I'm looking for information regarding flow rates etc for GTE vvti Vs GE vvti heads.. I'm going to build the ultimate JZ drift engine;) Iv done tones of searching but not found what I'm looking for.. Anyone able to point me towards this info? Quote Link to comment Share on other sites More sharing options...
Guest RyGuy_VVTI-TT Posted August 11, 2014 Share Posted August 11, 2014 Hey guys, I'm gonna buy my friends 93.5 NA VVTI TT swap supra. the engine was just swapped and is currently stock. I plan to daily drive it, with the occasional track day. so, i'm really only looking for 400-600HP. I don't want to get into dyno wars with anyone. And i want to keep the TT set up, I like the fast spooling. I'm in California. Does anyone know of a tuner that knows how to actually put the VVTI to good use? Quote Link to comment Share on other sites More sharing options...
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