View Full Version : afc on stock 2jz-ge
soardrft
09-13-2005, 01:26 PM
can i hit 450whp just by using the safc and a t4 .61 turbo setup?
turb0terr0r
09-13-2005, 02:28 PM
depends....need more info. on your setup.
champazn
09-13-2005, 02:48 PM
how much boost do you plan on running?
btm7687
09-13-2005, 03:16 PM
If I remember correctly, the AFC is only good for around high 300rwhp...maybe around 375rwhp...you won't be able to soley run an AFC as fuel management. You will either need to find a VPC too or run a MAP ECU or even standalone.
Bryan M.
soardrft
09-13-2005, 03:45 PM
t4 turbo
hks box
hks 50mm waste gate
ss autochrome manifold
custom dp
custom piping
greddy ic
safc
exedy clutch
i am not sure of the boost just want to get it really close to 450 without blowing motor or tran. a 12lbs would be nice i think. this car is mainly for drifting, at least 5 times out of the week. is this a safe setup for my goal?
what do you guys think of a tran cooler would that help preserve the w58?
btm7687
09-13-2005, 04:39 PM
Ok...already answered one aspect:
1)SAFCII is not good enough for 450rwhp alone.
2) Drifting is going to KILL your tranny...all of the abrupt on off throttle pushing 450 is definitely going to make it snap. No hope there with a cooler...it's only a matter of time.
3) 12lbs of boost is going to get you no where near 450rwhp...IIRC kbprice is pushing 17psi and is around 420rwhp and 450rwtq.
4) SSAutoChrome...your choice...heard many things about Ebay parts...good, mainly bad.
My advice...go MAP ECU, R154, 17-18psi, DaveH.
Bryan M.
soardrft
09-13-2005, 05:11 PM
but the r154 tranny is so much work to put onto a 2jz-ge block. has anyone priced that swap yet. from what i read you need to change the bell housing, clutch flywheel and driveshaft i would not even know where to begin with that swap. its like saying you are better off going 1jz-gte after the tranny swap.
btm7687
09-13-2005, 07:09 PM
but the r154 tranny is so much work to put onto a 2jz-ge block. has anyone priced that swap yet. from what i read you need to change the bell housing, clutch flywheel and driveshaft i would not even know where to begin with that swap. its like saying you are better off going 1jz-gte after the tranny swap.
You can source R154's that have the correct bell housing...it's just a bitch. Also, of course you need a clutch and flywheel, you would with any tranny swap, and the driveshaft can be custom so you can keep your stock differential. I'm telling you this, if you plan on not swapping your W58 every couple days, you will have to do a tranny swap. Drifting a 450rwhp Supra 5 days a week is going to kill the W58 faster than SF kills newbies.
Bryan M.
450whp can definitely be hit with just an AFC, I'm not sure how that got around that it couldnt...
550s, LS400 MAF, and an AFC to control them and you're done. Now, a better question would be if that can be done on stock compression on pumpgas. And I'll say "I've never seen it done before without racegas"
As for the tranny... with 450whp and in some form of motorsport competition where its leaned on a lot... the W58 will give out VERY quickly
R154 isnt that hard to do, its just sourcing the parts.
btm7687
09-13-2005, 08:35 PM
Damn...I've always been told that the AFC wouldn't hold that much, I stand corrected.
Bryan M.
nolimits
09-13-2005, 09:01 PM
What's this talk about a tranny oil cooler? Manual trans don't have a pump...the oil just sits in the case. I doubt heat is really the issue anyway. Why would you need 450whp to drift? I'm no drifting expert, but I know that kind of power is overkill. I'd have to say your goal with that setup should be closer to 300-350whp with some good tuning.
Damn...I've always been told that the AFC wouldn't hold that much, I stand corrected.
Bryan M.
Well it cant without assistance from the V8 AFM... so in essence youre right. :)
The S-AFC can only adjust a certain amount and thats its realm of tunability... if you go too far beyond that then the car isnt driveable (which is what i'm sure you meant).
I've seen quite a few VPC setups on NA-Ts using the S-AFC back in the day and it seemed to work just fine for tuning larger injectors.
btm7687
09-14-2005, 12:46 AM
I've seen quite a few VPC setups on NA-Ts using the S-AFC back in the day and it seemed to work just fine for tuning larger injectors.
That's what I was referring too. I thought he meant 450rwhp on JUST an S-AFCII...I know the VPC/AFC combo can yield excellent results, but I thought he was meaning JUST AFC, no VPC...
Bryan M.
soarerflame
09-14-2005, 05:44 PM
i drift my s14 with about 280whp I am only running 12lbs on a GT28RS with Q45 MAF and SAFCII and using a 440cc with walbro and nismo FPR. It does great. If you double the HP of a 2JZGE in an SC300 it would be more than adequate to drift. Keep in mind drifting is not all about power its about suspension and knowing the limits of your car. And when I mean limits I am talking about things such as final tire adhesion, rotating rate of the car when the rear starts to slide, camber, caster, toe in/out at full lock left and right and straight. Differential strength can it handle it is it LSD or open? Most of all can the transmission and the clutch handle it all. I don't drift the sc300 cuz its too purty for me to screw up plus its a hwy battle car and some drag. Get ready to beat your car to hell drifting. And get really friendly with a used tire place because you will need them often. Oh and get ready to break shit and I mean OFTEN especially suspension and drivetrain parts not even mentioning body panels. Oh don't forget to get your car and you on a diet. The lighter the better. and get a good clutch preferrably with enugh strength to hold the HP and a durable one that will take the abuse.
Other than that good luck and keep it sideways only on the tracks.
peace
soardrft
09-14-2005, 07:34 PM
well i had a red sc300 with a 1jz motor and that was the begining of my drifting days. however i ran into power problems when i tried drifting fwy entrances. maybe it was the suspension but for the most part i could not keep it boosting to keep the slide. it was a nice setup though. yeah i keep hearing about weight reduction on the sc. i started, but very little. in the end i guess i would not mind the weight if the power matched. i have a 2-way and a nice clutch to lock up the stock motor, ok suspension just waiting around for hks hypermax coilovers. but when i enter into competitions or try canyon running the only thing holding me back is the power. that's why i want 450whp. with that kind of power the sc should perform well with the weight it has. i to love the overall look of the sc, but after my last drift event i reviewed the tape and fell in love with the look when its sideways. nothing better than luxury performance.
Dramon
09-14-2005, 07:39 PM
450 still seems like excess.
I'd try drifting with 375 at least first and then add more if you need.
btm7687
09-14-2005, 08:09 PM
450 still seems like excess.
I'd try drifting with 375 at least first and then add more if you need.
Yeah...and remember...get the basics down and you can always crank up the boost later...
Bryan M.
That's what I was referring too. I thought he meant 450rwhp on JUST an S-AFCII...I know the VPC/AFC combo can yield excellent results, but I thought he was meaning JUST AFC, no VPC...
Bryan M.
I see...
AFC only then, yeah thats kinda hard to make 450whp.... i think it'd be doable on race gas with 440 injectors... but not much beyond that.
using an LS400 AFM is a similar upgrade to the VPC in how it allows you to run bigger injectors.
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