Paul Laing Posted June 16, 2003 Share Posted June 16, 2003 I'm after NOS when i go to the states in 2 weeks, but not sure what engine mods will be needed to handle 75bhp jets. I was thinking just a new clutch maybe? I was also told that if i had a digital progressive controller i could put 120bhp through it. Is this true as my Supra would go to 350bhp........ Any help would be great, as i don't want to blow my engine by not preparing it properly. Paul Link to comment Share on other sites More sharing options...
supna Posted June 16, 2003 Share Posted June 16, 2003 Isn't Nitrous like a no no with Insurers. Is it really worth going through with an install. Of course the answer is Yes!!! But seriously though have you looked into the Insurance stuff and if so let me know!!!!!!!! I have been told that you would definitly need a progressive controller but they are not cheap. I am sure your engine would be fine with just a 75bhp blad of the funny gas, depending on mileage of the car. Why don't you try going for a custom mapped ECU which would be cheaper and more reliable and insurance friendly. I'm sure you can squeeze a few extra horses out this way. Link to comment Share on other sites More sharing options...
Digsy Posted June 16, 2003 Share Posted June 16, 2003 If you make the broad assumption that internally the J2Z-GE uses the same parts as the J2Z-GTE then the answer could well be "nothing" as plenty of BPU'd TT's seem to be turning out that kind of horsepower. I think its a big assumption though. It might be worth cross checking part numbers on parts like head gasket, main bearing shells, conn rod shells, oil pump, water pump, pistons (which probably won't be the same anyway because of the different compression ratios), exhaust valves, etc. Link to comment Share on other sites More sharing options...
lust2luv Posted June 16, 2003 Share Posted June 16, 2003 I don't think you can beat the bang for your buck you get with NOS (especially on an NA), even progressive set-ups are surprisingly cheap, about the price of a set of good rubber. Insurance is definitely the problem though. I've often wondered if, when describing your mods, you could describe in a way that doesn't ring alarm bells, but is technically correct. "NO fuel enricher" or something, gives a cleaner burn! Can you get insured without it upping your premium, if you never actually connect it up on the road, only use it for track days and stuff off the public highway? Sounds like Mark Kindell is getting NOOSSSSed up, he really knows what he's doing and might be able to help? Link to comment Share on other sites More sharing options...
Paul Laing Posted June 16, 2003 Author Share Posted June 16, 2003 I don't see why 75bhp wouldn't be a problem like, Saxos and Corsas put 50-75bhp jets on them! And this is a big 3.0 car.... Can't wait to put out 350bhp without lag!!! Think it'll be next year though when it gets used on the dragstrip at POD and i'll put it against some Turbo's eh??? See how she does! Paul Link to comment Share on other sites More sharing options...
Digsy Posted June 16, 2003 Share Posted June 16, 2003 Originally posted by ImportSupra I don't see why 75bhp wouldn't be a problem like, Saxos and Corsas put 50-75bhp jets on them! And this is a big 3.0 car.... Can't wait to put out 350bhp without lag!!! Not trying to pee on your parade but I think that's a bit of an over simplification. Firstly, you have no idea how long those Saxos and Corsas actually last after being NOSed-up. Second, the fact that the Supra is a big 3.0 litre car doesn't really have anything to do with it. If the internals are engineered to handle X horsepower then that is what they will handle. If you want to go to X+75 horsepower then you have to either assume that the engine was designed to handle the extra, or determine what the mods are and make them yourself which I guess was your line of thinking when you started this thread off. That's why I said that if the NA Supra uses the same internals as the TT, you should be OK because we know what the TT engine can handle. In my experience, modern engines are very very seldom designed to handle anything more than the stock power output, unless there is a more powreful sister engine in the same range. Even then, manufacturers may shave a few pence off the parts price by substituting lesser components into the lower powered engine. There are enough modded J2Zs out there to confirm that the GTE is build like the proverbial outhouse, but there's always something waiting to bite you in the ass. Don't take it the wrong way - Hope it works out for you! Link to comment Share on other sites More sharing options...
lust2luv Posted June 16, 2003 Share Posted June 16, 2003 Might be worth browsing the US forums too - lots of non-tubos over there, and bucketloads of NOS sloshing about. I remember reading that the NA could handle 100BHP extra, but don't know what evidence that was based on. Link to comment Share on other sites More sharing options...
Paul Laing Posted June 16, 2003 Author Share Posted June 16, 2003 you can get Turbo kits in the US that give take the non turbo from 230bhp to 350bhp. But i'm not sure what components in the engine the kit might replace!!! Dodgy stuff NOS, but if it's installed correctly then it should be fine. I would only use it occasionally (he says now). I'll have a look on the US forums, cheers for all the help though Link to comment Share on other sites More sharing options...
Thorin Posted June 16, 2003 Share Posted June 16, 2003 I've commented on this subject before http://www.mkivsupra.net/vbb/showthread.php?s=&threadid=7392&highlight=nos I wouldn't have thought the NA would be any different to the TT with regard to NOS install but it would be worth checking. 75bhp shot should be fine and more with a progressive system. Link to comment Share on other sites More sharing options...
lovatt Posted June 16, 2003 Share Posted June 16, 2003 i might be talking out my ass here but i thought it was against the law to use NOS on her mag's highway ? i remember something about a slap on the wrist if you were cought on the street with the tap open ? if this is the case i dont think you would have to declair it to the insurance company as it would be against the law to use it on the road anyway. so the tap would be closed and the mod not in use. someone please put me right if they know better as im not even 50% shure on this Link to comment Share on other sites More sharing options...
Thorin Posted June 16, 2003 Share Posted June 16, 2003 It's not illegal, well there's no specific law against it but it is a bit of a grey area. I don't know if any insurance companies would touch it to be honest. Strictly for off road use only obviously Link to comment Share on other sites More sharing options...
Mark Kindell Posted June 16, 2003 Share Posted June 16, 2003 just got in from making a start on fitting my nos sys and the first thread i read is this lol . NOS if installed correctly should be no problem on a N/A at 75 or even 100 if the engine is in good nick to start with, yes your clutch wont like it so consider changing that if its on its way out but that would be the same for any large increse in power !!! But i would always use a progresive controler 2 different types of controler on the market at the mo, one runs the nos via the engine revs and the other uses a 2 stage timer ! kits start out at about £550-600 plus upgrades, remote bottle openers, larger bottles ect . Controlers are expensive at around £400 but a must have imo Link to comment Share on other sites More sharing options...
Mark Kindell Posted June 16, 2003 Share Posted June 16, 2003 Ohh as for insurance companies well i'll let you decide on that one Link to comment Share on other sites More sharing options...
Mark Kindell Posted June 16, 2003 Share Posted June 16, 2003 Check out http://www.noswizard.com/ They have a bbs which i think says a lot Link to comment Share on other sites More sharing options...
Paul Laing Posted June 17, 2003 Author Share Posted June 17, 2003 *Edited by Mod. You don't really want to post something like that on a public forum* I'll mostly only use it on dragstrips like York etc. But i might switch it on occasionally Paul Link to comment Share on other sites More sharing options...
supra dan Posted June 17, 2003 Share Posted June 17, 2003 adrian flux told me that no-one would insure me to use nos on the road but that it was ok to fit as long as it is "disabled" for road use Link to comment Share on other sites More sharing options...
lust2luv Posted June 17, 2003 Share Posted June 17, 2003 So many people seemingly have it fitted (and just as many seem to have an unconnected NOS bottle for show!), that there must be some way of getting insured with it. It's weird that nobody will insure you to use it, but they're happy to trust you not to use it (would be very difficult to prove you had in the case of an accident I should imagine). You'd have thought insurance companies would prefer to quote an increase to use it. Link to comment Share on other sites More sharing options...
Andrew Posted June 17, 2003 Share Posted June 17, 2003 Originally posted by lust2luv It's weird that nobody will insure you to use it, but they're happy to trust you not to use it (would be very difficult to prove you had in the case of an accident I should imagine). Don't be too sure those mushroom clouds can be seen from quite a distance Didn't someone on here have a number plate with "NOS" on it, and kept getting pulled over? Link to comment Share on other sites More sharing options...
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