When An Rb Is Just Too Big....

[Race__24]

I'm looking to design up a small roadster type thing, similar to the small kit cars you see getting around but I'm going in a bit different direction than most in that I want to use R32 GTR running gear with shortened axles and drive shafts etc. My problem is that the RB26 is just too tall for what I want to do, and to be honest it's too heavy as well.

The main problem I have is size, I want something that is short in height and length so the car doesn't end up huge.

Ideally a small ally NA V6 would be great, but I have no idea what's out there. I was even thinking a rotor because they are so small but I think I would prefer something with a little more torque. I'm not too fussed if it's NA or turbo but NA would be easier. I'm thinking around the 230kw mark, which should make for a quick car.

What can you people think of that fits the bill?

Cheers

Aaron

[910trx]

they make a clubman, lotus 7, prb thingo called the wasp which runs an sr20det in them

they are one of the quickest things around because they weigh nothing but as the sr is too tall they have to be dry sumped.

my mate had a variant with a rolla 20v and just low enough.

we queried going 13b but its too hard to make them fit the emmission specs for what is essentially a 'new' car.

his prb with the race spec 20v was bored and stroked to 2.2L with ITBs and race fixed cams, made about 240hp at the fly

throw it in a 400kg car w/o driver and you end up with a sub 1.16.xx mallala laptime

he has since built another with the 16v as his weekend car - more than enough balls to drag off a 911 and still handles better than a lotus

Edited February 3, 2010 by 910trx

[warps]

Renesis 13B - not a torque monster, but certainly not bad. With decent exhaust and ECU, you will have it easily over 200kW. As it's a current model engine, emissions shouldn't be too much hassle. 9000RPM from the factory should be enough, too.

Alternatively a 13BT will have all the torque you need, with 500hp readily accessible.

If you are looking for 230kW from a small, compact engine, then I suspect that you will have trouble with emissions / driveability / lag at any rate, so from that point of view, a modern rotary won't be too bad.

If it's all out NA grunt you want, then an L98 is the go. Lighter than the RB, with an easy and reliable 500hp available with little outlay. You should be able to pick up a brand new crate motor for around $6k or so. Problem is they're fairly bulky and tall, so might not fit your purpose, and the T56 is heavy, and a bit of a p-i-g (it changed it to cop ) to use.

[Marcus89]

how big are the motors out of toyota aurions? They use those in the lotus evora and if the engine itself isn't too large/heavy i could see it being all kinds of awesome.

Also aren't LS motors shorter and lighter than RB's? Although unsure on how tall these are either

[VB-]

20B

/thread

[mad082]

also what about the EJ20 or 25 from a wrx? but have to be a fan of the sound

[iseekool]

VQ engine..?

[iseekool]

4g63 would be pretty cool - people have been able to mount them north-south without much issue eg. 70s galants and sigmas...

[funkymonkey]

If I were you I'd be looking at RNN14 GTi-R or HNU13 Bluebird running gear and SR20DET's, they're the most potent version of the engine and they're AWD (albeit not ATTESA-ETS like the GTR, but close). Was good enough to conquer rallies back in the day.

[Race__24]

If I were you I'd be looking at RNN14 GTi-R or HNU13 Bluebird running gear and SR20DET's, they're the most potent version of the engine and they're AWD (albeit not ATTESA-ETS like the GTR, but close). Was good enough to conquer rallies back in the day.

Not a fan of the east west in a GTi-R plus with the GTR running gear I can swap to rear wheel drive if I feel like it.

A 13b rotor is looking like a likely contender at the moment. If I run e85 emissions shouldn't be to hard

[Silver_GT]

emissions is easy* on e85, even in a 350kw rotary

*i use this word lightly, but easier than most people think...

[GTS4WD]

4AGE 20V

4AGZE

4AGTE

A mates dad has a 4AGE in his PRB and ran around a 1 min time around wakie.

12A Turbo/Peripheral/Bridge

13B

SR/CA

[SECURITY]

a roadster will be MUCH MUCH lighter than anything the 13b is currently in so torque will be more than adequate, your main issue will be traction.

[old mate]

s2000 motor?

[SECURITY]

the s2000's are quite tall mate.

the f22's stroke is something like 95mm, which is quite big compared to the rb26 which is 73.7. in terms of height the f22 would be much taller than the rb26.

[BoyWhoCriedWolf]

Golf/Jetta TFSi motor?

[ezy_09s]

Got the ticket right here...take 2 suzuki hayabusa engines and turn it into this 2.6 litre to 3.0 V8 that turns to 10,000rpm.

...Or if your soft just the H2 engine.

http://www.h1v8.com/page/page/1562068.htm

Edited February 3, 2010 by ezy_09s

[NYTSKY]

Turbocharged KA20 would haul ass and rev to 9000rpm

[ezy_09s]

+1 for the turbo'd K series honda.

[funkymonkey]

3sgte? seems to work for elises