ot: 72 240z

2073 Views 19 Replies 9 Participants Last post by williamb82, Dec 3, 2003

williamb82

Discussion Starter · Nov 27, 2003

well, my friend has a 72 240z. he wants to build it for handling more then drag racing. ive pretty much sold him on the sr20det engine with 5 speed trans, but the clips are ~$3k. however, i have found r32 clips with rb20det's for ~$2200. would the 2.0 straight 6 be a good motor for him? his car is pretty light and he only wants ~300rwhp which shouldnt be hard with either on stock internals. i know the sr20 has more parts available over here, and it would be mounted by the firewall for a better weight distribution, and also, if we go this route we can v mount the i/c and rad and make vents in the hood for the i/c. anyway, let me know what you think and if you know a place to get an sr20 clip cheap lmk.
william

1 - 20 of 20 Posts

dogstar

· #2 · Nov 27, 2003

i would think that the rb should be alright, since the car is already set up for a I6, and im pretty sure the stock engine is going to out weigh the RB series.

i cant really judge the RB20det, as ive only ever gotten a ride in one R32, for all of two minutes, but the car is a legend, so i guess it cant be too bad a mill.

the sr20 has a huge following, and for good reason, but i think that the rb20 is going to become popular, as the sr20-in-240sx craze is starting to die.
its over done, and now the show cars are all going RB series.

just my opinion

WadeT

· #3 · Nov 27, 2003

Go 1jz...

williamb82

Discussion Starter · #4 · Nov 27, 2003

we were actually thinking of that too. but a 1jz clip is the same as a sr20det clip so figured keep it nissan. he was even thinking of a 7mgte, but the problem is getting the engine to run in the 240z with minimal wiring. plus, the sr20 would give overall better weight distribution. i honestly would love to see a 3sgte but finding a bell housing for rwd is the hard part.
william

WadeT

· #5 · Nov 27, 2003

Yea, but there's something lost when you put a 4cyl in where a inline six once was...

Norbie

· #6 · Nov 27, 2003

The 1JZ is a far superior engine to an SR20 or RB20, and also better than the RB25 but for less money. I know what I'd be doing!

CST

· #7 · Nov 28, 2003

yeah, the 1jz is definitely worth the extra work... Another thought, that little 1.8L v6 that mazda had in the old mx3 wouldn't be half bad.

wingnut

· #8 · Nov 28, 2003

why not build the stock engine thats in it (*or better yet find a 280 and swap engine/trannys) i know a kid with a 280z that all he has done is open exhasut better carbs and jets and i think a cam and he is the fastest person out at our autoX's o but he uses race tires and does have suspension

my dads 85 911 is just millaseconds off his times

williamb82

Discussion Starter · #9 · Nov 28, 2003

he doesnt want to build it. he is who i got the webers from. he has everything needed to build a 3.1l stroker with anywhere from 10.5:1compression to 12:1 compression depending on what head he uses. he just doesnt want to do it for some reason. he doesnt think it will be logical as gas mileage would suck and he still wants to drive it on the street.
william

SupraFiend

· #10 · Nov 28, 2003

WadeT said:
Yea, but there's something lost when you put a 4cyl in where a inline six once was...

yep, about 2 cylinders lol

And forget that mazda 1.8 v6, that thing was a joke. It barely motivated the mx3.

William, I don't see how any modern engine swap is going to be any harder or easier. Its not like the car is efi from the factory, an sr20 will be just as hard to put in as a 1jz. Is he dead set on turbos? A 1uzefe would rock in a 240z. Then you get your weight balance and a simplier install (no turbo plumbing), you just need a custom bellhousing. Its crazy how light those old 240s are. I know I guy here with an aluminum rover 4.9 liter mated to a w58. 2400 pounds curb weight, the thing is just insane.

williamb82

Discussion Starter · #11 · Nov 28, 2003

well, he was gonna but a chevy v8 in it but i talked him out of it. i think the turbo 4 cyl. would be best because of weight distribution. plus it will make the power he wants and will get good gas mileage and be reliable. im not worried which would be easier, its more cost of the front clips then anything else. plus, id figure id see what else we could come up with.
william

SupraFiend

· #12 · Nov 28, 2003

an aluminum v8 would give him the weight balance he needs. Oh well, like I said they're light, an sr20 or 3sgte will provide enough motivation for either. Just keep in mind that a stock sr20 only makes 200 hp and building it to 300hp, which is about the most the dead reliable ones make usually, is not simply a matter of turning up the boost. They're tough motors but they're not 2jzs that can double factory hp to the crank with stock internals. Where as something like a 1uzfe would give you the weight balance you want and 300hp out of the box. Just something to think about.

tubinator

· #13 · Dec 1, 2003

why did you talk him out of a v8?? and told him to go with a turbo 4?? whats wrong with a turbo 8 :evil: ?? tell him to get a dry sump oil pan to lower his center of gravity. and he dont want a v8 go with the rotary, actually, i dont know if people put rotarys in those things but it would be cool!!!!

Since Rotarys provide a lightweight setup, it shouldnt be overlooked, especially if you get a turbo one, sure, torque is kind of shitty but you dont even notice it, if you have ever driven FD, its just too much!! :lol:

tubinator

· #14 · Dec 1, 2003

SupraFiend said:
an aluminum v8 would give him the weight balance he needs. Oh well, like I said they're light, an sr20 or 3sgte will provide enough motivation for either. Just keep in mind that a stock sr20 only makes 200 hp and building it to 300hp, which is about the most the dead reliable ones make usually, is not simply a matter of turning up the boost. They're tough motors but they're not 2jzs that can double factory hp to the crank with stock internals. Where as something like a 1uzfe would give you the weight balance you want and 300hp out of the box. Just something to think about.

I always thought it cost akidney and a half for one of those aluminum V8 blocks. with the money used to buy an aluminum v8 block he could have bought 2 turbo kits from aaron?? right?

SupraFiend

· #15 · Dec 1, 2003

not really. Depends where you get it from. The early 1uzs (the 260hp ones) aren't that expensive or rare. Also old Rover V8s are aluminum and should be pretty cheap too. Theres a guy here with a 4.9 liter 400hp aluminum rover v8 in his old 240, that thing is a monster

williamb82

Discussion Starter · #16 · Dec 1, 2003

well, now he is thinking on a 22r with a turbo setup. we were a fischers buggies and they have a badass dragster with a turbo 22r. its insane. 22r's are cheap, reliable, and plentiful should he blow it up. also, aftermarket support is well abundant. if he goes this way it will deffinatly be original. we know 22r's can build the power he wants and still have good tq and rev to 7k :twisted: . might be the final solution. we'll see.
william

Supra Bob

· #17 · Dec 1, 2003

22r's are great motors. I've heard of them making upwards of 400 hp with boost, and little loss of driveability or reliability.

As for the 1UZ route.... William, your looking about $3k total for that. I kow because I have it all priced out for the black car

Norbie

· #18 · Dec 2, 2003

400hp is almost 4 times the stock power output of a 22R. It can be done, but with no loss of drivability or reliability? In your dreams!

It will also cost a fortune to get anywhere near that sort of power. 22R's are strong and reliable, but they are not a performance engine and they were never intended to be. Anyone who has looked at a 22R cylinder head will realise that.

If you really wanted a 400hp Celica, a 3S-GTE conversion would be significantly cheaper and a lot better overall.

tubinator

· #19 · Dec 3, 2003

True that, my 22RE truck heads failed me and has been sitting for almost 5 months now. 22Rare some realiable engines but you better watch yourself if you wanna make that much power. I wouldnt recommend it.

williamb82

Discussion Starter · #20 · Dec 3, 2003

he wants ~300rwhp, and forged rods for the 22r are ~$300 set new, about the same for pistons. 22r's will take a beating, and 20pis of boost with a ported 20r head on 22r shortblock should net some good power.
william

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