The 18R-GTE reference manual ...

[1JZ-Rolla]

sad sad little sexually frustrated men

If shots like that get your rocks off, then check out the TA64 Group B rally car buildup pics on Makela Auto Tuning website

[timbosaurus]

meh... they've only got a t-series

[1JZ-Rolla]

What if I said that twinspark RG motor pictured above was de-stroked to 1800cc? Would that make it uncool?

[timbosaurus]

as long as it was an 1800cc R-series, it'd still be cooler than a t-series. hehe

[JustenGT8]

Fixed for you!

Is it possible that you could tap a new thread into the head for a second spark plug? Weld on anything else needed (ie cylinder up to the cover?) Could be possible to make a twin spark out of 2 cylinder heads i guess!

I guess if you were a machinist with access to crazy machinery it would be very possible.

bEn

Dunno about that mate, twin spark was an oddity that filled a very brief need while fuel and combustion chamber technology had a little holiday

Still a tough looking motor and 1st time i've ever even heard of, let alone seen, that head casting

[RA23GT]

Justen is right, will go for a conservative start. The RG is a bitch for pinging though so will be a work in progress. Will still go for the high CR route as I reckon it will make a much better combo to drive.

That twin spark WTF!!! That's RG PR0N, just add the 16V RG and [content deleted due to graphic nature]

[JustenGT8]

E85 Kev...will solve all your pinging issues, not to mention make you a swag of power with the high comp and adv you can run with the stuff. By the time you are ready to roll it should be available. You will probably need higher flowing injectors but a nice set of Evo diffuser style can be sourced from the US cheap and will give you the benefit of better injector control as well.

[o_man_ra23]

Other things you will need to run E85 include:
All new flexible fuel lines - need to research as regular rubber ones swell and weep/burst over periods from using E85. Teflon lined braided items are meant to work well, but very expensive.
Full fuel tank flush out - your tank will have built up crap over the years, and E85 will put that straight into your filters, clogging them completely
Very regular filter changes - see above
Possibly new fixed fuel lines - same reason as tank, and also E85 being hygroscopic will absorb moisture and cause your steel lines to rust quickly.
Upgrade to Bosch motorsport pumps - they seem to not fail with E85
*info above shamelessly excerpted from the August edition of Fast Fours*

Other than that, not sure if Evo diffuser style will be appropriate, the 440cc Honda Talon injectors I got from the states though, are quite correct for the 18R-GTE and should handle the moderate power you seek with E85's extra fuel flow requirements.

Apart from the corrosive nature due to the moisture absorption, and being really harsh on anything rubber (injector seals, fuel lines etc), E85 is indeed the wonder drug you are after, though expect your Litres/100km figure to go down the toilet.

[JustenGT8]

Sorry mate but mostly web myth (plus anything taken from Fast Fours is immediately suspect)...for Methanol yes, these are issues ....for E85, nup. Independant tests show no moisture adsorption and the fact that super conservative manufacturers are happy to see E85 run in their cars dispels the rubbish about degrading rubber lines.

Sure, if you run supercheap auto low pressure line you will have issues, just as you do with regular unleaded. Any quality high pressure line from GOSS or similar will be fine for the life of the engine.

A tank clean couldn't hurt for sure.

I'm running the Evo style injectors? what's your concern? Either way, that was just a suggestion, any newer style injector would be the go was my point...maybe even piezo if you want the ultimate in control.

[The Witzl]

im running the Evo injectors in mine also - the yellow top denso-looking ones, flow tested to >660cc/min at 60psi.

I got the pintle hats changed to single spray tho to minimise port wall-wetting, as the original twin-spray pintle hat wouldve sprayed all the fuel straight onto the port walls.

pics

[JustenGT8]

Mine are the diffuser plate style Karl...something like 8 holes from memory. Provides better atomisation at lower duty but sacrifices some top end flow...a trade off at the end of the day but one that favours response so i think these put you ahead.

Ed had them flow tested and the spray pattern not too different to the 7MGTE injectors which i have been using...no wall wetting issues with the diffuser plate.

[The Witzl]

interesting - got pics?

[JustenGT8]

Start here and have a read

http://www.v-eight.com/tech_forum/vi...+pattern#p6664

there's more info buried in other if Ed's threads but key compoenents for mine were GT4000 is using them to good effect and the flow rate was what i needed. I think the ones i actually received have a different plate but i'd have to check

[o_man_ra23]

O man - you want "1G DSM" (1st gen) injectors from ebay motors (USA). Search ebay motors for "dsm injectors".
The blue top ones have the the correct spray pattern, and they are 440cc/min.
The black top, or 2G/2nd gen, versions have twin spray pattern, which is not suitable for the single intake valved 18RG.

Here's a link
http://cgi.ebay.com/ebaymotors/450cc...QQcmdZViewItem

Ahh... found where I got the injector advise from. Can't give you a post number any more thanks to the new forums, but if you look for the 7/11/2007, you will find said post and discussion surrounding it.

It is more a matter of chemistry that alcohols are hygroscopic, so what do they do with the E85 to prevent this? It is well known that it is a pain in the arse to store pure ethanol, as it will very quickly absorb all the moisture in the atmosphere around it until it reaches around about 5% water to 95% ethanol mix, where it will slow down its absorption.

[JustenGT8]

It'll come down to spray pattern with any injector with the intent being to hit the back of the inlet valve. Boosted engines are a little more forgiving as they have higher intake velocities but as Karl says, you don't want to be washing the port walls if you can avoid it.

I have no idea what they do to E85 but it was be safe to say they do something seeing it's for an automotive application and it's a rare fuel tank that's not steel. The local w'shop who have nothing but good things to say about E85 left the lid off a drum for a coupla months to test the water adorption issue and confidently stated 'no issue'....just a passing comment in the conversation so i didn't grill them as to what was actually tested, specific gravity, % water etc ?

Say the fuel companies do nothing. You have a fuel tank with bugger all moisture anyways, a constant turnover of fuel and even at a max of 4% the moisture is bound in the fuel and effectively non corrosive. I just can't see it being an issue and have yet to see any demonstration to the contrary...just interwebz speculation? You would get more water in your tank from simple condensation than what E85 would magically attract