Guest MrRob Posted January 18, 2012 Share Posted January 18, 2012 Hi everybody Need a few questions answering if you can help me... I've been a bit dissapointed with my N/A in terms of performance since I got it, and now I'm on a quest for a bit more power. As every N/A owner is probably... I know the N/A is difficult to improve without going down the forced induction route, and I'm simply not in a position to spend a few grand on a TT or upgrading mine with a single turbo conversion. But, I'm considering having a play with a supercharger, and have been looking at various types and they dont seem to be too expensive. I know the work is going to be making it fit and connecting it up to the car, but i'm not too worried about that.. I'm thinking along these lines.. -Making fit a supercharger (Ive seen Eaton 45's 90's and 112's at reasonable prices) using a tensioner and longer auxiliary belt to drive it -Connecting up the inlet pipework incorporating an intercooler of reasonable size in the front bumper -Fitting an adjustable fuel pressure regulator -Fitting a piggyback ECU (Dastek) with boost controller (not sure what the boost controller side of it does though) so the car can be mapped properly -Utilising a wastegate/dump valve Some of the questions I have are.. 1- Am I being silly? 2- How much power are the stock N/A injectors good for? 3- How much power is the stock fuel pump good for? 4- I know the bottom ends are strong, but how much boost can the N/A handle before dropping the compression to 8.5:1 5- What do I need to do about the MAP sensor, could I use one of a TT or does the TT use an Air Mass Sensor? 6- What else do I need to consider? Ive probably missed out something blatantly obvious! My goal is to get 300-320 Horsepower at the flywheel, Id be happy with that. Is this achievable do u think? Hope u can help, because I really do quite fancy the whine of a supercharger coming from under my bonnet Cheers:) Quote Link to comment Share on other sites More sharing options...
Scott Posted January 18, 2012 Share Posted January 18, 2012 Brendan (Barney) and Dave have both gone down the supercharger route already, with varying degrees of success. Quote Link to comment Share on other sites More sharing options...
ripped_fear Posted January 18, 2012 Share Posted January 18, 2012 two people that maybe be able to help are- - http://www.mkivsupra.net/vbb/showthread.php?233707-Project-Supracharger - http://www.mkivsupra.net/vbb/showthread.php?203331-NA-supercharger-build EDIT- scott beat me to it Quote Link to comment Share on other sites More sharing options...
Guest MrRob Posted January 18, 2012 Share Posted January 18, 2012 Damn fellas, that was quick! Cheers Quote Link to comment Share on other sites More sharing options...
barneybrendan Posted January 18, 2012 Share Posted January 18, 2012 this was my best dyno run at 6-7 psi with an m90 Quote Link to comment Share on other sites More sharing options...
buster Posted January 18, 2012 Share Posted January 18, 2012 Have a word with Barneybrenden on here he try'ed to do it for a couple of years overcoming problem after problem. I think he almost finished it but is now breaking it and bought a tt auto. hope this helps and welcome bud Quote Link to comment Share on other sites More sharing options...
Guest MrRob Posted January 18, 2012 Share Posted January 18, 2012 Hi mate, thanks for that. 310 pretty good result!! What did u do to the fuelling and ECU side of things. Ive ordered a mappable piggyback ecu and looking into adjustable fuel pressure regs... Quote Link to comment Share on other sites More sharing options...
barneybrendan Posted January 18, 2012 Share Posted January 18, 2012 Hi mate, thanks for that. 310 pretty good result!! What did u do to the fuelling and ECU side of things. Ive ordered a mappable piggyback ecu and looking into adjustable fuel pressure regs... get a bottle of drink,some sweets and read away. http://www.mkivsupra.net/vbb/showthread.php?203331-NA-supercharger-build Quote Link to comment Share on other sites More sharing options...
Ian C Posted January 19, 2012 Share Posted January 19, 2012 get a bottle of drink,some sweets and run away. Fixed that for you Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted January 19, 2012 Share Posted January 19, 2012 Hi everybody Need a few questions answering if you can help me... I've been a bit dissapointed with my N/A in terms of performance since I got it, Should have got a TT in the first place Quote Link to comment Share on other sites More sharing options...
Pulley Posted January 19, 2012 Share Posted January 19, 2012 NO stay away from the light Barneybredan had a spot on setup IMO But cost would be comparable to a tt transplant in the end, superchargers do come up fairly cheaply but can be a false economy, centrifugal compressor like a rotrex would be the route I'd go down as they are far simpler and more reliable, tend to be more costly second hand compared to twin screw tho Quote Link to comment Share on other sites More sharing options...
Pulley Posted January 19, 2012 Share Posted January 19, 2012 If your gonna sc, go the whole hog and sc-tc use a rotrex for bottom end boost, then big single turbo for top Electro clutch the rotrex so it's not overdriven when the turbo is on song Just use tt pistons to lower compression, not just a thicker gasket Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 19, 2012 Share Posted January 19, 2012 Trust me, if you can't run to a TT conversion you can't run to a supercharger UNLESS you have your own excellent fabrication facilities and skills, and your own basic machine shop. If that's the case do a really nice job and productionise it. It's tricky, hard work and time consuming. A basic single turbo install is far easier and probably far cheaper. Cheaper still is to sell the N/A and buy a TT all done and developed by Toyota. Quote Link to comment Share on other sites More sharing options...
Pulley Posted January 19, 2012 Share Posted January 19, 2012 Trust me, if you can't run to a TT conversion you can't run to a supercharger UNLESS you have your own excellent fabrication facilities and skills, and your own basic machine shop. If that's the case do a really nice job and productionise it. It's tricky, hard work and time consuming. A basic single turbo install is far easier and probably far cheaper. Cheaper still is to sell the N/A and buy a TT all done and developed by Toyota. Sounds like the best advice right there Quote Link to comment Share on other sites More sharing options...
Noz Posted January 19, 2012 Share Posted January 19, 2012 Supercharged conversion will take alot of time and money, swapping the head for a big single head isn't worth it, financially if you could afford all that business and lowering compression with engine rebuild pistons etc etc etc you probably wouldn't own an NA and would have bought a TT. Read brendans thread, he had 310 meaty BHP that pulled like a train. Aim for that and your be a happy bunny. Quote Link to comment Share on other sites More sharing options...
Nic Posted January 19, 2012 Share Posted January 19, 2012 (edited) Was the Lexus IS300 ever sold in the UK? Vortech do a SC kit for the IS300 which is fitted with the VVTi version of the 2JZ-GE, would be interesting to see one of these on a Supra. http://www.vortechsuperchargers.com/product.php?p=144 UK supercharged IS300 5BbYlbaFs_4 Edited January 19, 2012 by Nic (see edit history) Quote Link to comment Share on other sites More sharing options...
Guigsy Posted January 19, 2012 Share Posted January 19, 2012 Was the Lexus IS300 ever sold in the UK? Vortech do a SC kit for the IS300 which is fitted with the VVTi version of the 2JZ-GE, would be interesting to see one of these on a Supra. http://www.vortechsuperchargers.com/product.php?p=144 UK supercharged IS300 5BbYlbaFs_4 You would need to get rid of the dizzy for that. Looks nice tho Quote Link to comment Share on other sites More sharing options...
Nic Posted January 19, 2012 Share Posted January 19, 2012 (edited) You would need to get rid of the dizzy for that. Looks nice tho Yeah, that's why I was wondering if the IS300 was sold in the UK ie. whether it'd be possible to pickup a VVTi 2JZ-GE off a scrapper that you could do an engine/head swap from. Edited January 20, 2012 by Nic (see edit history) Quote Link to comment Share on other sites More sharing options...
Pulley Posted January 19, 2012 Share Posted January 19, 2012 I'd go for a rotrex centrifugal sc , same as the vortech but neater smaller install with it's planetary gear up, and will easily fit where the aircon pump is on the supra Quote Link to comment Share on other sites More sharing options...
Guest MrRob Posted January 19, 2012 Share Posted January 19, 2012 Thanks for all your input guys, everything you've said has been taken on board. Yeah, a buying a TT seems the easy way out but I quite fancy the challenge so Im still thinking I might give it a go. Thanks for all the suggestions and advice Quote Link to comment Share on other sites More sharing options...
Guest MrRob Posted January 19, 2012 Share Posted January 19, 2012 and p.S thats not a "f*** you Im doing it anyway statement" lol I just like the idea of a Supercharger and fancy a bit of a project thats all.. whether I succeed or fail is another thing haha.. Quote Link to comment Share on other sites More sharing options...
garethr Posted January 20, 2012 Share Posted January 20, 2012 The IS 300 was sold in the UK, auto only (the Americans got a manual with a w5something). No distributor because it's the VVTi engine that runs wasted spark. Weaker rods than the non-VVTi 2JZ-GE. Quote Link to comment Share on other sites More sharing options...
Kirk Posted January 20, 2012 Share Posted January 20, 2012 Yup. I actually have one of these engines stored which has suffered rod failure. Maybe I will re kindle the love to rebuild it one day and tinker with it. Quote Link to comment Share on other sites More sharing options...
Konrad Posted January 20, 2012 Share Posted January 20, 2012 Thanks for all your input guys, everything you've said has been taken on board. Yeah, a buying a TT seems the easy way out but I quite fancy the challenge so Im still thinking I might give it a go. Thanks for all the suggestions and advice Go 1JZ-GTE route, easy to convert NA to 1JZ and engine is more rev happy and generally more lively than 2JZ Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted January 20, 2012 Share Posted January 20, 2012 and p.S thats not a "f*** you Im doing it anyway statement" lol I just like the idea of a Supercharger and fancy a bit of a project thats all.. whether I succeed or fail is another thing haha.. Go for it, best of luck and keep us posted Quote Link to comment Share on other sites More sharing options...
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