A20 panda motor? (HEY SEAN)

[Sabz5150]

Anybody think this is possible? For those that don't know, a panda motor is a D16 engine with B16 rods and supra pistons. Apparently you can boost to rediculous levels with that setup. Any chances this working on the A series? If so we might just be able to get even more boost just because of the block. For those looking for insane horses, this might be a start.

[adams86lxi]

damn, that would be tight!

[Sean]

with the realtively cheap parts avaiable why bother.

[Sabz5150]

with the realtively cheap parts avaiable why bother.


Because a good set of 80's Supra pistons are cheaper from the junkyard. Only thing you'd have to worry about are the rods.

[Sean]

i dont think it would work. the a20a has a uniqe bore of 82.7 mm and as far as i know nothing else has a similar bore from the factory.

[AccordEpicenter]

i dont think most supra pistons are forged anyway...

[Justin86]

Or you can just get forged pistons and rods that are made for the A20 and are designed to hold a lot of boost.

[4sillypwr]

Or you can just get forged pistons and rods that are made for the A20 and are designed to hold a lot of boost.


Yeah but where is the ghetto fabulous fun in that?

-David

[BootMachine]

I agree with sean. Just go out and buy rods and pistons!

Besides....If I was boosting over 10 PSI I would not want junk yard parts!

I think the coolest part of this is the name of the motor...I dont think you will be able to boost any higher with used supra pistons than you would be with a good set of forged pistons!

[Sean]

well if there was a supra with a larger bore like 83mm with a b16 rod or something similar im sure machine work could be don eto do it. But the exspense of the machine work and unreliability of the parts makes it a risky proposition at best.

[Trowa]

well if there was a supra with a larger bore like 83mm with a b16 rod or something similar im sure machine work could be don eto do it. But the exspense of the machine work and unreliability of the parts makes it a risky proposition at best.

the stock bore on an MK3 supra IS 83mm

http://www.cygnusx1.net/supra/techtip/stats.html

and even though these aren't forged the stock pistons are good for more hp then this engine would be able to produce, ppl run with 500+ hp on stock bottom ends with no problems.

just my $0.02

Andriy

[4sillypwr]

the stock bore on an MK3 supra IS 83mm

http://www.cygnusx1.net/supra/techtip/stats.html

and even though these aren't forged the stock pistons are good for more hp then this engine would be able to produce, ppl run with 500+ hp on stock bottom ends with no problems.

just my $0.02

Andriy

Those stock bottom ends also handle 500hp divided among 6 cyls. thats 83.33hp per cyl that they would have to hold. So in a 4cyl that would be about 333hp. Keep in mind they only make 200hp and 220 or 240 tq stock. That's only 147hp per 4cyls that they are meant to hold from the factory.

-David

[Trowa]

Those stock bottom ends also handle 500hp divided among 6 cyls. thats 83.33hp per cyl that they would have to hold. So in a 4cyl that would be about 333hp. Keep in mind they only make 200hp and 220 or 240 tq stock. That's only 147hp per 4cyls that they are meant to hold from the factory.

-David

i c u have a supra =) and so do I =P
and just cause it makes only 230 hp stock doesnot mean that that all that it was designed to hold. And if u ask me 333 hp from a 4 cylinder engine is DAMN GOOD! i doubt that most ppl will ever even get there anyway.

[4sillypwr]

I see your point. most people will never seek those kind of numbers. It really depends how much work has to be done to make them fit. There are issues that would need to be addressed. You would have to over bore. You have to make sure the pin size is the same. The compression height of the piston has to match the rod length and so on and so on. Maybe if someone less lazy than me did some research we could have some more definite answers. Yes 333hp is tasty.

-David

[Trowa]

Yeah, theoretically it all sounds good, but practically something like this is prbly never gonna happen anyway, cause u can always get Honda pistons to match with Honda rods from like a Prelude or something (just speculating here, don't really have any odea on this)

btw, r u on supraforums?

andriy

[Vanilla Sky]

how much power you runnin, sean... i wuold assume (at least for testing purposes), you'd run upwards of 400 or 500 on an a20 turbo... would i be correct to assume this?

[Elijah]

I think u r correct.

[4sillypwr]

he is going for 325hp. I'm on supraforums as 4silly. i'm 4silly pretty much everywhere.

when I rering my supra this spring I will take a look at the pistons. I doubt it's worth it though.

-David

[Sean]

well ive abuse tested stock engine parts. things start commng apart around 350hp. rods, main bolts, head bolts etc. ive built a few sacraficial lambs in the past few months to find this stuff out. the block is extremly stout. the crank is a good piece as well. however everything else is ok upto about 300hp. but thats if you keep the revs down.

ive got a a20a motor in the planning stages right now should be making over 450hp. so we will see what comes of that thing. this is for a customer. my personal motors are gonna be shooting for over 600hp. aside from the street engine in my car .the street motor should be 350hp ish . wiaiting on a bigger turbo to arrive to continue testing. would be nice to have a 375hp motor reliably..

[HatchCord]

sean you are a god.

[Chadroper]

I have one in the planning stages that should make around 400hp.

[smufguy]

if the A20 has a bore of 82.7 mm and the supra has 83mm thats means the supra is bigger by 0.3 mm in diameter right? that would be like saying u need to shave off 0.15 mm if ur gonna be taking material off.

So does this mean that u need a 0.15mm overbore? if what i am saying is correct (even tho it sounds funny) i dont think u can boure out a A20 that much. THe max i have seen here are people borind out 0.030mm for god knows what reason.

[Sabz5150]

if the A20 has a bore of 82.7 mm and the supra has 83mm thats means the supra is bigger by 0.3 mm in diameter right? that would be like saying u need to shave off 0.15 mm if ur gonna be taking material off.

So does this mean that u need a 0.15mm overbore? if what i am saying is correct (even tho it sounds funny) i dont think u can boure out a A20 that much. THe max i have seen here are people borind out 0.030mm for god knows what reason.

So they can shove Chevy pistons in the thing. It's like a roller coaster... fun, fast but only lasts for a short time.

[smufguy]

The one thing that makes me respect Sean a lot is his primary target is not just HP or power its RELIABILITY. this is what me and lot of us have been looking for when it came to performance and he just answered it all with one project. Now thats a work of a Genious.