11 sec 1/4 mile

[avinesh]

any chance of a 370wkw auto supra running semi slicks running a 11 sec time.....oh an the trans will be rebuilt an have high stall converter an shift kit with large oil cooler...any tips advice...will it be worth running race fuel maybe 110 octane.....cheers

[Snaps]

I know the Croydon Drag Supra (~570 KW) gets high 9's, so i think a supra with that sort of power should be able to do 11's, but race fuel will help a lot, and a tune with race fuel and a little more boost will help quite a bit more.

[Bazda]

race fuel will only help if you tune it for race fuel.
I always found if tuned on pump gas and changed to race fuel it made my car run pretty crappy.

[2jayzgte]

I think there is a few more tricks to the Croydons Supra than just the work under the hood.I think you'll find that the suspension will be fairly trick.Also there has been alot of thought and huge $$$$ put into this car these are some of the reasons why its a drive to the track 9 second car.

[BlakeNZ]

the extra timing and boost you can run with 110 octane(the haltech can have switchable maps) will allow power increases of around 10 percent.(as evidenced by my car, with switchable Maps) . your 60 foot time will be the biggest factor as to drag results. so minimise lag. of course, activating the haltech's antilag will give you 15psi boost on the startline, so you could go very fast(low to mid 11s) if you chose.

[Dell'Orto]

I think there is a few more tricks to the Croydons Supra than just the work under the hood.I think you'll find that the suspension will be fairly trick.Also there has been alot of thought and huge $$$$ put into this car these are some of the reasons why its a drive to the track 9 second car.

Wasnt anything particularly flash from memory, just a set of specific valved drag shocks. The 600+kw would have helped no end however
Would have been cheap racing for someone, they only wanted $45k for it.

[deaf_rattle]

I think there is a few more tricks to the Croydons Supra than just the work under the hood.I think you'll find that the suspension will be fairly trick.Also there has been alot of thought and huge $$$$ put into this car these are some of the reasons why its a drive to the track 9 second car.

Wasnt anything particularly flash from memory, just a set of specific valved drag shocks. The 600+kw would have helped no end however
Would have been cheap racing for someone, they only wanted $45k for it.

only $40k now
http://www.trademe.co.nz/Trade-Me-Motor ... 145924.htm

[avinesh]

the extra timing and boost you can run with 110 octane(the haltech can have switchable maps) will allow power increases of around 10 percent.(as evidenced by my car, with switchable Maps) . your 60 foot time will be the biggest factor as to drag results. so minimise lag. of course, activating the haltech's antilag will give you 15psi boost on the startline, so you could go very fast(low to mid 11s) if you chose.

how does anti lag work on a auto.....???

[postfach]

Antilag does nothing for a drag launch, it's only activated when you lift your foot off the throttle, to keep the turbo spooled during a gear change.

You need launch control to get boost on the start line, which is similar to antilag in principal but works with the throttle wide open.

[BlakeNZ]

yeah you set it up so it only works on the start line. i read an article had a manual 2jz car with a haltech e11 getting 15psi at standstill. not as simple in an auto to achieve, but i reckon it could still be done by using the pwm inputs to activate it(as an example, if the computer sees 3000rpm,the car in gear,but no forward motion-which would happen when i'm stalling the torque convertor up on the startline- then it goes into launch mode/anti lag where it cuts ignition intermittantly,adding fuel possibly, getting the fuel to ignite in the hot manifold and spooling the turbo up)

[cat007]

Antilag does nothing for a drag launch, it's only activated when you lift your foot off the throttle, to keep the turbo spooled during a gear change.

You need launch control to get boost on the start line, which is similar to antilag in principal but works with the throttle wide open.

Well sort of.....

Antilag doesn't just mean rally style - that's just what people relate to rally.

I have drag mode antilag in my car with the Stinger but only set up so it's off above 70% throttle and above 4,000rpm

With more practice I'd set it up so it ignores the TPS, turns on above 4,000rpm and ONLY turns off when above 5psi. That way you can burry your foot, hold it below 5psi - when you dump the clutch and the engine loads up, you'll instantly get more than 5psi so it turns off.....

[MAGN1T]

An auto makes it a bit different. With an Auto you really need a trans brake (and high stall converter).

Steve

[escortman]

Antilag does nothing for a drag launch, it's only activated when you lift your foot off the throttle, to keep the turbo spooled during a gear change.

You need launch control to get boost on the start line, which is similar to antilag in principal but works with the throttle wide open.

Well sort of.....

Antilag doesn't just mean rally style - that's just what people relate to rally.

I have drag mode antilag in my car with the Stinger but only set up so it's off above 70% throttle and above 4,000rpm


With more practice I'd set it up so it ignores the TPS, turns on above 4,000rpm and ONLY turns off when above 5psi. That way you can burry your foot, hold it below 5psi - when you dump the clutch and the engine loads up, you'll instantly get more than 5psi so it turns off.....

yeh iv got that in my stinger too how do u set it up? from memory u can chnae the missfire and shit?

[cat007]

have a play - every car is different - mine isn't totally right for my car but it works

[BlakeNZ]

yeah i haven't seen it done in an auto, but i think it is possible, and may pioneer the concept with the haltech in my project car in the next few months.

[MAGN1T]

You wouldn't use anti lag or launch control with an auto.

You put it into gear and give it full throttle with foot on the brake. The torque converter puts a load on the motor. It's a totally different priciple.

Steve

[BlakeNZ]

yeah but few people can manage to get 15psi boost on the line. i would like the option of leaving the line with 10-15psi showing, not 3-6 psi. japanese stall convertors are much harder to modify to a high stall than the USA ones. the most you can get is about 3500rpm.

[avinesh]

yea im gettin a stall converter done as well trying to get it to stall to atleast 3000rpm also any idea where i can get a seperate ecu to just control the auto box????

[avinesh]

what should my budget be if i wana get a manual converstion r154 or getrag 6speed if its under 8 grand......

[Dell'Orto]

If you can do the job yourself I dont see why you couldnt make it manual for sub $8k.