ea 81 stroker

gtcompletepower · Post by **gtcompletepower** » Wed Jun 24, 2009 5:48 pm

is it possible to use ej20 rods with ea71 pistons to make a ea81 stroker

Matt · Post by **Matt** » Wed Jun 24, 2009 9:10 pm

You can get 1mm / 40 thou oversized pistons or are you after more compression?

gtcompletepower · Post by **gtcompletepower** » Thu Jun 25, 2009 1:09 am

just want my ute to go like a jet

Matt · Post by **Matt** » Thu Jun 25, 2009 6:31 am

I would be looking at a 32/36 Weber first up, and then trying to find ome "Dual Port" Heads, and the cam to match. And finally play with the pistons.

brumbyrunner · Post by **brumbyrunner** » Thu Jun 25, 2009 10:34 am

gtcompletepower wrote:just want my ute to go like a jet

You won't do it without a turbo. Look around for an EA81T or even an EA82T. Otherwise you'll spend a lot of money dissapointing yourself. If you want the best bang for your buck though, an EJ20T is still the way to go.

ChPLAT · Post by **ChPLAT** » Thu Jun 25, 2009 4:29 pm

Won't get a jet with a ea81....

though people do use em on planes I hear

the gumbi brumby · Post by **the gumbi brumby** » Thu Jun 25, 2009 4:52 pm

yes i have also hered that! will be interesting to find out what they do to them

Post by **TOONGA** » Fri Jun 26, 2009 11:27 pm

ChPLAT wrote:Won't get a jet with a ea81....

though people do use em on planes I hear

they sure do

http://www.prachapter34.com/converting_engines.htm

http://www.inficad.com/~bdhull/engine.html

some very interesting links there as well

oh and in hovercraft as well or hoverwing?

http://www.hovercraft.com/content/index ... Path=34_53

TOONGA

daza · Post by **daza** » Sun Jun 28, 2009 6:23 pm

Engine size.....1.8L , 109 cid
Compression...9.7-1
Multi-point fuel injected
Direct fire, crank angle, waste fire ignition
4.5 qrt. oil sump pan
Serpentine belt driven accessories
Self contained oil bath gear box
Counterclockwise prop rotation
Wet weight 176 lbs. with gear box
Engine comes complete less exhaust and radiator.
Crating and shipping extra.
65% discount applied to FOB shipping

Also available in 140hp supercharged version..call

Daza.

Gannon · Post by **Gannon** » Sun Jun 28, 2009 7:58 pm

or this

Post by **TOONGA** » Sun Jun 28, 2009 8:45 pm

Suparoo wrote:or this

daza wrote:

Daza.

Imagine an old subi with either of those in them

TOONGA

GOD · Post by **GOD** » Sun Jun 28, 2009 8:57 pm

I don't normally get real excited over old engines, but those last two pics are pure porn

.

Dane.

phillatdarwin · Post by **phillatdarwin** » Sun Jun 28, 2009 9:32 pm

go hard or go home

littlewhiteute · Post by **littlewhiteute** » Sat Jul 04, 2009 6:33 am

gtcompletepower wrote:is it possible to use ej20 rods with ea71 pistons to make a ea81 stroker

Changing rods and pistons doesn't give you a stroker.

You need a crankshaft first, at least offset ground pins.

hazzard · Post by **hazzard** » Mon Dec 27, 2010 12:34 am

Suparoo wrote:or this

How awsome i want one

ORX-18 · Post by **ORX-18** » Mon Jan 03, 2011 6:28 pm

i want my ute to go like a jet.....

use it as a parts car and save up for a GTR

Gannon · Post by **Gannon** » Mon Jan 03, 2011 7:50 pm

Id imagine that turbo EA81 picture that i posted would be gutless till about 4000rpm, going by the size of the turbo and the restrictive heads of the EA81.

If i remember correctly, i got it from an aviation website, meaning it was for an aeroplane and spends 99% of its running time at full throttle and probably about 4000-5000rpm

Would still be lots of fun though

spike · Post by **spike** » Mon Jan 03, 2011 7:58 pm

Suparoo wrote:restrictive heads of the EA81.

might be duel port heads?

YouTube · Post by **El_Freddo** » Thu Jan 30, 2014 5:23 pm

spike wrote:might be duel port heads?

Nope, from the research I've done the EA81T factory heads are basically EA81 heads but they have an injector boss cast in them.

RSR has a set at his joint somewhere. There are plenty of pics of EA81T heads on the internet to look at if you're keen.

On the EJ pistons - forget the stroker bit, you can run EJ20 pistons on an EA81 rod with the gudgeon pin bush removed to fit the EJ20 gudgeon pin. From what the USMB boys have reported back on this is that there's no long term issues without that bush/spacer in the rod.

Cheers

Bennie

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ea 81 stroker

ea 81 stroker

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