1293 turbo or 1380 turbo
Turbo Mini Forums

i`m building a turbo engine and the pistons for 1293 are the same money as the 1380 turbo what one do you think ?

Edited by AlexB on 5th Mar, 2006.

1293 Turbo mini

A 1380 can't be rebored (well it can but the pistons are rare)

Metro turbo weekend driver,Mini turbo in the making again!

Dangerous is right!

having said that my next motor is going to be a 1380 + an 84mm stroked crank

back for back the bigger cc will always make the most power!

given the same amount of boost but..... there are slight pitfalls nothing to worry about untill you want the...

"Ultimate Turbocharged A series Engine".

my moneys on the 1380

i'm the same as ben, i'd planned for my next motor to be a 1430. dunno why but i just fancy having a bash now that JE have bought out some forged 18cc jobbies...

I'd go 1380. Benross and bud why don't you go the whole hog and go 1460. You can get a nice 86mm forged crank...only trouble is i think there about a grand. :s

http://photobucket.com/albums/y139/Skinns46/

im running a 1380 with a t3 at the moment and loving it, but i just modded what i already had so it was the easy route for me. the biggest problem was getting the CR down. even with 11cc pistons and a head modded by benross ive still only managed about 8.5 - 1
although ive seen some rather swanky 18cc forged pistons from avonbar which are on the wish list for next year.

steve.

doh! why did i start messing with it!

hippyinamini was they the pistons from avonbar at about £250.

1293 Turbo mini

J.E. make 18cc 1380 pistons,or you could use low hieght(1430/1460) pistons as they stop approx 4mm down the bore on tdc.

But don't mention squish

Metro turbo weekend driver,Mini turbo in the making again!

what`s the money on them £400 the abouts

1293 Turbo mini

omega are about 250

Metro turbo weekend driver,Mini turbo in the making again!

no more like £400 ish im afraid! acralite? i think their called, forged either 14 or 18cc
last time i checked anyway!
people seem to be doing well with this sort of CR tho, T3tones RR results on the other pages speak volumes. and my engine is very similar but not yet been near the rollers in its current spec.
1380, 11cc cast omega pistons, a stg 3 head modded by benross, kent 266 cam, megajolt ignition, plus all the s/c stuff undernieth.
just on the look out for a nice intercooler and some 1.3:1 roller rockers. to finish the job.
steve.

edit:

lol beat me to it

Edited by hippyinamini on 5th Mar, 2006.

doh! why did i start messing with it!

bri the 18cc je pistons are they made for turbo application???

yeah they're available from morspeed last time i checked, same price as the accralite ones i believe.

The £250 omegas will be cast not forged. JE's are £402 plus vat. Our Accralite our £353 plus vat. Just to give you a bit of info there. I've had a good look at both and there isn't much difference between the 2 on the face of it. The difference comes in the heat treament! OH and the price.

http://www.avonbar.com

Benross there being made as we speak!!! Forged of course. Only with 6 or 11cc bowl i think. There is just no demand to get them with a bigger dish. Will let u know when we get them.

http://www.avonbar.com

Avonbar....

Now, let me understand something here.
You say there is no demand- despite the (now) realisation of the 1380 turbo engine poitential, without the apparant drawbacks stated (and believed) for soooooo many years?

And JE is the only current supplier of such pistons?

ah,hum. I'm not understanding.

is it true that JE pistons use a smaller gudgeon pin?

Do Acceralite pistons used the same size pin as omegas?

Team Racing

thanks avonbar

the point been to make a Killer motor you need all the cc you can get.

especially with a stroked crank of 84 0r better 86mm

the piston ccs in the tops need to be increased,conciderd
18 / 22+cc

i honestley believe that there is a demand & a bigger one in the near future for these pistons

as shortley the fastest times with an A series motor will be made using a stroked cranked turbo motor.

its the way forward.

thanks pete
i do agree with you but we are stuck with a slight problem with the A series.

we cant go over board any more with bigger bores

the only way is to stroke it

a well stroked A series will still hang together at strokes up to 86mm with a turbo blowing at it on 20+ psi of boost

turbo engines, in essence is a torque mulitplier, nothing more.

turbo engines respond well with massive amounts of torque in stroked engines.

this is the only option we have in getting bigger ccs in the
A series

pete

Hi,
I'll agree with the low speed torque, my approach would be to use taller gearing, with high compression as you can make more use of the low down torque to hurl the car out of the bends. It'll seem slower 'cause your not screaming the nuts off it but I reacon you'll get the same result!
Cheers,
Gavin :)

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the je pistons use a smaller gudgeon pin than standard (the +020" 18cc ones i have do) so this is extra cost for the rods to be bushed

thanks leonard

any one know about the short pin height ones
in 73.5mm ?

Our forged pistons use the standard gugeon pin size. No rod mods. TurboDave i'm not clear what your saying???? We do forged piston at 73.5mm with 18cc and 14cc dish. What we can't get done is the pistons ben wants. Big dish for a long stroke engine. Simply because we have to get a batch done and we would never sell them,lol.
It will be interesting to see how your engine will perform Ben. Keep us posted.

Edited by AV-R Technologies on 8th Mar, 2006.

http://www.avonbar.com