newbie ae86 build rb20det motor swap

[spicer]

hi all new to this kind of thing I've recently got my self a ae86 1993 model with a standard 4a manual little bit of rust but running for a cheap $1000 cash. I plan to sell the motor and box to help fund the project witch will be to use the car for drift and hill climbs. also on my trip I organised a standard rb20det without the turbo $550 and a 5 speed manual box for $250 so when I sell the motor and gear box that will help fund a high mount manifold and a gt30 turbo and a hd clutch as well. So far I have completely stripped the car of all its interior and dash to make way for the custom dash and new larger tranny tunnel. also I have done a bit of searching around and found out I need a tuffer diff.

[Jacobxxx]

What are you going to doing the way of compensating suspension wise for the heavier motor? RB20DET's are fairly heavy, MOTOR ONLY 200kg - 250kg add gearbox on and that's a heavy motor for a ~1000kg Corolla.
If you went SR20DET or CA18DET, you're only looking around 200kg WITH gearbox.

It's been done a few times but i think you need to assess if the benefit of the extra power is worth the handling loss since it is going to be for drift and hill climb days.

[spicer]

yes I have looked into that but I do want to do something different every one is going sr20det I want to be different wost comes to worst ill sell the motor and box and go another route uploading pics now

[sam92]

Beams!!

[briigo82]

^^ Agreed keep it Toyota!

[sundee]

Want different slam an rb26 in it.
Or a 26b quad rotor
There are reasons you won't see an rb20 in an 86. Or anything else for that matter.
The main one being a reliable power gain can be achieved with a lighter weight, smaller motor.
An rb20 would be a downgrade in any car.
Hence why you got it so cheap.
It's 6 slugs and 2L
Doesn't 4 and 2 sound alot better.

In all cases of racing the weight affects acceleration, braking distance, cornering speed, corner exit and entry speed...
Heavier the slower, it's a simple concept.

Under steer becomes an bigger issue and needs to be delt with via suspension setup.

The 4cyl motor, be its 3s, SR or CA ( just most common ones)
Are used because they are light and make enough reliable power then you could ever use in a car like an 86.

Being different requires alot more thinking then you may think.

[shammy]

[QUOTE=sundee;922529]Want different slam an rb26 in it.
Or a 26b quad rotor
There are reasons you won't see an rb20 in an 86. Or anything else for that matter.
The main one being a reliable power gain can be achieved with a lighter weight, smaller motor.
An rb20 would be a downgrade in any car.
Hence why you got it so cheap.

really rb20 down grade ? wtf are you for real, I agree that the rb20 is to heavy for an 86, but don't EVER UNDERESTIMATE AN RB20!!!, ive seen 10sec passes from these guys easy and considering the amount of drift events they have one there clearly not lacking, amutre......

[AJPS]

[QUOTE=shammy;924285]Yes a downgrade. They are reliable and quite a strong motor....but they are old, laggy, heavy and make an s13 handle worse (r32 and cefiro people who change to sr20 rave about the improved front end feel)

..Which is what an ae86 is about. Not saying an rb20 in an ae86 wont be 'fast' but - effort vs results vs hacking up a semi rare car. What do you even want to do with it? Wont be legal, wont fit into any race catergories (except sports sedans which it will not be competitive in) By the time you spend the money on the areas the car will be lacking in the build price will be similar to most conversions...There is just more sensible options these days. If your heart is set on the rb20 buy an r32 shell for peanuts and it will all bolt in. Being different for the sake of being different.... I dont usually comment on these topics as 9/10 they end up an 'unfinished project' and it would be a shame to see another 86 needlessly go to the scrap yard
Take it as inspiration if you will. Good luck

[ke_70]

[QUOTE=AJPS;924366]pretty much this. my mate build somthing similar out of bits and peices he and around and had the rb20 running in the corolla for peanuts. downside is 2 of the six cylinders are located behind the firewall and it is probley the hardest drift car to maintain. almost everything is a motor out job. even getting to the rear injector is motor out job.
but if you can do it for a price like >1k it's not that bad of a budget build if you have the toolage and knowlege/skills

[maxhag]

^^
Some well said advice from Joel..... +1