I'm new to the Supra scene. But I don't even have a supra, I have a 240sx. I've currently got an SR20 motor that pushes around 310whp. I'm putting a 2JZ into that car now though. After going aftermarket turbo and fuel and everything, i've decided that the 2JZ is just a much better choice.

BPU is just the basic mods right? How close to full BPU would my setup be?

This swap is costing me an arm and a leg so it's pretty tight. I'm just curious, What would a 2JZ with 3in downpipe and full 3in exhaust (no cat), FMIC, on stock twins with a boost controller push? What i'm mainly scared of is getting this motor and having it be slower than my SR20 (i know it cabable of MUCH more, but it'll kill me if I drop 10k and have a slower car even for a second). The boost controller I already have, along with a FMIC and 3in exhaust (i'll have to do a custom 3in downpipe anyway).

Also, i've got a GT2540R .86 a/r turbo on my SR20. I know this turbo is sometimes used (but I the smaller .64 version) for twin replacements. Would it be worth throwing this turbo on the 2JZ single? It'll take a custom manifold I think... Otherwise i'm just gonna sell it.

Try not to flame me. Just think of it as a cheap light supra (not exactly *light* but lighter, my S14 is about 2880lbs.).

You know, there is a shop in town that is putting a RB25 into a S14. It's not a rare swap either, as you probably know. 2.5L iron block, DOHC, turbocharged, readily accepts mods.. it's Nissan AND adapts fairly easily into the 240. Why not use that instead of a 2JZ? I mean, I know that 2JZ parts are available in the US, but still..

I believe that integration of your current turbocharger would be a waste of time. There are people making over 400whp on the stock US spec 2JZ twins. The 2540R with 0.64 A/R is supposed to support enough airflow for "only" 360hp.

If you BPU a "healthy" 2JZ-GTE engine, you will have roughly 350-390rwhp.. and MANY people make MUCH more than that - no shit.
Some of the best-case scenario BPU cars have been witnessed to have 430-ish rwhp [roughly 500 @ the crank].
Here is a little link, if you are still wanting a 2JZ instead of the RB25.
http://www.suprastore.com/450hppackage.html

I, personally, will be using a 2JZ engine. It's an excellent platform. I am just thinking that the $10k that you want to throw at a 2JZ swap can be used to swap a bad-ass RB25 into your car, plus have alot of money left over some really awesome upgrades. I've seen a 2JZ in a S13 already - a 900hp one, in fact. If you put a 2JZ in your car, the Nissan DoRiFuTo club will pull your club member card, revoke your membership and benefits. LoL

All joking aside, good luck in whatever you do.

you said it your self, the swap is expensive. just keep the SR and use the 10 grand on a fuel system, ignition, turbo, fmic, tuning, and you will have a faster car.

if you are getting rid of your SR how much do you want for it?

Lol.. Yeah, I've seen the RB motors. I guess I want to make it REALLY fast as some point. I'm looking for 9s eventually. That's going to be much harder with a RB in the long run. I can probably make a 9 second pass on the stock 2JZ bottom. Since supras can do it weighing a fair amount more (600-700lbs.?). Plus, you can't get parts for the RB motor which isnt a HUGE deal, but it does not have the support the SR does. As I said, my SR already has a big turbo and big 740cc injectors. It puts down around 310whp. I just want MORE potential. One of my issues also is the tranny. I've been thinking about going for an auto tranny. Not only do they tend to be better for drag racing it also costs about 2k less. I'm not sure which route to go with that. Can anyone help? I could use the 2k savings to build the Auto tranny. But how long does the auto last? Is it any good? I know most of the fastest supras use autos.

I've put a lot more into my SR than I could get back selling it. I've got a S13 that I might put it into, or I may put it into a Nissan Truck. Or if I absolutely have to i'll sell it. My car is running around 12.8s right now. I want it faster.

Plus it's a lot more unique.

I think with a BPU 2JZ i'll be in the solid 11s on Drag radials.

quote:

Originally posted by 240sxer:
I think with a BPU 2JZ i'll be in the solid 11s on Drag radials.

You had better be. There are full weight [3400+lbs] BPU Supras that are into the 11s with drag radials.

lol.. yeah. 400whp would put me wayyy into the 11s. But I assume after the heavier motor and everythng i'll be closer to 3000lbs. Still a fair amount lighter than a Supra.

Got any insight on an Auto vs. Manual tranny?

your goal seems to be drag racing so a BL/SP built auto with 4000 stall is your best bet. if you are just bpu you wont need the built tranny but the stall would be a good idea.

Okay, that sounds good. For a built tranny it seem to be about 3k. The difference between buying a Getrag and a Auto is the auto is like 2k cheaper, so it'll only cost me an extra 1k for a built auto tranny. Plus I can just leave it stock till I break it. Is the auto tranny good for drag racing? Good ratios and stuff?

the fastest supras are all autos. there hasnt been a manual supra under 9 seconds yet. There will be soon, but not yet

stock autos have seen high 10s on occasion. the built trannys are good for at least 9s. if you want anymore than that youll need a TH400. again this is in a supra which in the 240 you could probably see high 8s with the built tranny.

How about just BPU. How does a Getrag vs. a Auto compare?

there are many more auto bpu in the 11s than 6spd but i believe the fastest bpu time was done in a 6spd. im not sure so dont quote me on it.