theredone Posted May 9, 2014 Share Posted May 9, 2014 Are tt cams same as the na cams? And do they fit both ? Quote Link to comment Share on other sites More sharing options...
SupraP-Z Posted May 9, 2014 Share Posted May 9, 2014 TT and N/A inlet cams are interchangeable IIRC...not sure about the rest Quote Link to comment Share on other sites More sharing options...
Mk4Gaz Posted May 9, 2014 Share Posted May 9, 2014 Aren't na cams slightly higher lift, on the intake side? Quote Link to comment Share on other sites More sharing options...
Al Massey Posted May 9, 2014 Share Posted May 9, 2014 No, NA intake cam has a gear for the distributer. Quote Link to comment Share on other sites More sharing options...
Kirk Posted May 9, 2014 Share Posted May 9, 2014 No its doesn't. The exhaust side does. Quote Link to comment Share on other sites More sharing options...
Al Massey Posted May 9, 2014 Share Posted May 9, 2014 No its doesn't. The exhaust side does. Good point, my bad Quote Link to comment Share on other sites More sharing options...
theredone Posted May 9, 2014 Author Share Posted May 9, 2014 Does anyone know where i can get a decent set of uprated cams for my na block? Quote Link to comment Share on other sites More sharing options...
Guest Budz86 Posted May 9, 2014 Share Posted May 9, 2014 Any aftermarket Supra cams should fit tbh, but is the car still NA? If so I'm not sure how much benefit you'd see from doing this.... Quote Link to comment Share on other sites More sharing options...
Nic Posted May 9, 2014 Share Posted May 9, 2014 http://ttcperformanceproducts.com/ttcperformance1.html Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 10, 2014 Share Posted May 10, 2014 http://ttcperformanceproducts.com/ttc-performance-2jzge-280-2280.html "The 2jzge cams are for the most hard core 2jzge owners. They feature an aggressive 280 duration, 10.04mm lift" About as aggressive as an enraged goldfish..... Quote Link to comment Share on other sites More sharing options...
Suprakeith Posted May 10, 2014 Share Posted May 10, 2014 Sorry for thread jack, but just reading and looking at the link. What difference would 264 cams make to the n/a please? As always toyed with idea of fitting after market cams Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 10, 2014 Share Posted May 10, 2014 (edited) They would make the power band move upwards in RPM and it would become narrower. You WOULD NEED a fully mappable ecu to show any real benefit. The engine would need to be run at higher revs to make similar accelerative progress to now. It doesn't take much in the way of mods to make an N/A pretty unsuitable for normal road use. To get a lot more power you'd need valve springs, stronger, lighter con rods and trick bolts, lighter pistons with a LOT more compression, and the best fuel you can find. It would feel dreadful on the road, be temperamental and wear out quickly, as you'd have to turn it at high RPM most of the time. Then the gearbox ratios would prove totally unsatisfactory, and probably the diff ratio, too. BMW and the like that still make high power N/A engines get away with it to some extent with dual variable valve timing, maybe variable valve lift, multiple throttle bodies, and extraordinarily well developed mapping. Some of this is to make some low end power, all of this is to meet emissions. Even so they are using relatively big engines that rely on capacity as much as anything. As modern cars with all the junk current drivers have been brainwashed into thinking they need, have become so heavy, the days of small, high revving, environmentally "dirty" N/A engines are pretty much over. Just look at the kerb weight of a MK1 Golf versus a current one... For something the size and weight of a MKIV Supra to give TT like performance you need either 1 bar plus of boost on 3 litres, or 5.8 litres plus of V8, naturally aspirated, to give a similar impression of "power" from the driver's seat. Still awaiting someone sticking an all aluminium big block Chevy in a MKIV, it would need to be someone who wasn't afraid of bumping BP's profit margins however Edited May 10, 2014 by Chris Wilson (see edit history) Quote Link to comment Share on other sites More sharing options...
Suprakeith Posted May 10, 2014 Share Posted May 10, 2014 They would make the power band move upwards in RPM and it would become narrower. You WOULD NEED a fully mappable ecu to show any real benefit. The engine would need to be run at higher revs to make similar accelerative progress to now. It doesn't take much in the way of mods to make an N/A pretty unsuitable for normal road use. To get a lot more power you'd need valve springs, rods and bolts, lighter pistons with a LOT more compression, and the best fuel you can find. It would feel dreadful on the road, be temperamental and wear out quickly, as you'd have to turn it at high RPM most of the time. then the gear ratios will prove totally unsatisfactory, and probably the diff ratio, too. BMW and the like that still make high power N/A engines get away with it to some extent with dual variable valve timing, maybe variable valve lift, multiple throttle bodies, and extraordinarily well developed mapping. Even so they are using big engines that rely on capacity as much as anything. As modern cars with all the junk modern drivers have been brainwashed into thinking they need, have become so heavy, the days of small fast revving, environmentally "dirty" N/A engines is pretty much over. Just look at the kerb weight of a MK! Golf versus a current one... For something the size and weight of a MKIV Supra you need either 1 bar plus of boost on 3 litres, or 5.8 litres plus of V8, naturally aspirated, to give a similar impression of "power" from the driver's seat. Thank for that, great explanation. Think I will save my money and not ruin engine getting cams Quote Link to comment Share on other sites More sharing options...
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