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.

[maxhag]

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

[spicer]

I agree i should use a smaller motor i may sell the rb and get something different would love a v8 in it
Thanks for the feed back guys

[sam92]

Something smaller ? V8?

x3 for what Joel said, couldn't be worded better!!

If you go with a bigger engine you will be disappointed when every other corolla with a 4cyl rounds you up around the track despite having less power.

[Casey-G]

I actually think an rb20 would be sweet in a 86.. Don't leave it for others to decide for you man.. If that's what you want to try then that's that.. Selling and swapping n everything else your gonna have to do to get a 25 will end up costing more.

I've personally seen rb20's put good power down and be reliable as a 4k at the track... Its not much extra weight when you think about it, a 4a+turbo+w series gearbox plus a heavier diff and it would be much of a discrepancy between the two.. And you get a solid bottom end you can rev the ass off and a shit tonn of torque from the inline 6 in comparison of a 4cyl of the same capacity.

Just my 2c..