328i BMW with Supra 2JZ-GTE drivetrain transplant and T-78 turbo with AEM engine management. This car is going to be one hell of a sleeper and I'm sure it will be an absolute handful. Supras came with 3:07 rear end gearing.... BMW's I think have 3:3x or 3:90's but definately not lower. It will be like iceskating with tennis shoes on when he makes boost and his limited size tire out back
I believe the guy in Austin was Clint and he had a big single with 315 BFG drag radials out back. Dynoed over 600rwhp if memory serves me right and the car had the Supra brakes on it as well and rear diff.
Originally posted by gnx7 I believe the guy in Austin was Clint and he had a big single with 315 BFG drag radials out back. Dynoed over 600rwhp if memory serves me right and the car had the Supra brakes on it as well and rear diff.
what the heck. how come i see these supras putting on T-78s on stock motors and us Buicks with .8 more liters are running 44s and 49s usually? id love to have a big ass turbo like that.
i havent really seen many with nitrous. i have seen some but not too many. how fast will a supra spool a T-78? what RPM in what gear will it hit full boost, say 15 or 20 psi cuz once it gets going it usually isnt much time between 15 and 20 psi.
The AEM engine management allows you to lean out the air/fuel and get the turbo to spool quicker. Much better than the piggy back systems people were using forever. Some are even putting Motec systems on their Supras.
The Soarer was a twin turbo motor... but it wasn't the 2JZ-GTE supra motor. It was a 2.5i litre straight six I believe.
Too big of a turbo on that car unless it were a full on drag car. Driveability would not be that tolerable IMO.
Depending how the Supra is set up these things don't make serious power with T78/88 until 4500-5000 RPM. I've seen countless dyno graphs were they make a good 300-400 to the wheels until this rpm and then shoots quickly to 650+ RWHP.
That 2.5 L straight six wouldn't happen to be the Skyline motor would it? Another fine example of inline benefits.
I could just imagine the potential of our motors inline.
i think our motors make the tq they do down low b/c of their V configuration. tq moves the car and with a heavy non aerodynamic car like a GN you need lots of tq to move it. i know the Supras arent the lightest things on 4 wheels but they wsere built with tope end in mind more than quarter mile. thats why they do so well from a roll. IRS isnt good for hooking but at speed and handling it does great. the inline configuration is more resistant to detonation though since the motor isnt working to try and tear itself apart it the center.
The key difference between the 3.8L and the 2JZ is not just .8L or inline vs V but actually is the head design. DOHC, 4-valves per cyls that FLOWS. I do not know the exact specs, but where we look to upgrade to a single 1.77" intake valve, these things have 2 1+" intakes. One way to draw a parallel would be to imagine if a stock 3.8L had heads as efficient as say Champions. Combine the 2JZ HP potential with the inline design that has more main caps supporting the crank and you can understand why the stock engine can make and support so much HP. We just have to run more boost to match them.
BTW, the Soarer 2.5L is the 1JZ and the Skyline engine is made by Nissan and uses RB as its engine designation. Regarding IRS, This is not the problem with the Supra not launching well or cutting good 60' times. Every time I hear those statements I am reminded of why my car won't hook and can only get 1.45 60' and this is with 3.08s and only 10psi launch. They just have not caught on to the fact that using a turbo and injs that makes the most peak HP on dyno queens is not necessarily the way to go on the drag strip, especially for a street-driven car.
Yeah Scottie I did leave out DOHC vs OHV. Actually there was a lot I left out, but I'm sure people get the point. But, if not there are various factors as to why their motors are better in ways that ours aren't. The best way to make it simple is technology Our motors were designed years ago and were the "technology" back then.
IRS isn't exactly a hindering factor. I've seen IRS cars running 9's. I agree with Scottie.
None. The 2JZ-GTE head flows almost 250cfm stock. Ported they are well over 300cfm.
The T-78 that the Supras are running are not the same 78mm T-78 that Turbonetics uses. The T-78 in the Supra is made by Greddy. If I remember correctly it has a 66mm inducer. It is still large, but the Supra head flows way more then the TR head does, and stock redline is around 7200. Change it to 8K and they are golden.
Originally posted by gnx7 The AEM engine management allows you to lean out the air/fuel and get the turbo to spool quicker. Much better than the piggy back systems people were using forever. Some are even putting Motec systems on their Supras.
The Soarer was a twin turbo motor... but it wasn't the 2JZ-GTE supra motor. It was a 2.5i litre straight six I believe.
Too big of a turbo on that car unless it were a full on drag car. Driveability would not be that tolerable IMO.
The Soarer had the 2JZ-GE engine. I am not sure if the Soarer (SC300) came turbo in Japan. From what I can find, the only difference internally (short block)between the GTE and the GE is that the GTE has piston squirters (oil squirting onto the pistons).
The 2.5 liter 1JZ I believe only came in the MKIII Supras in Japan. I do believe that they were single turbo too.
and this is with 3.08s and only 10psi launch. They just have not caught on to the fact that using a turbo and injs that makes the most peak HP on dyno queens is not necessarily the way to go on the drag strip, especially for a street-driven car.
