The 18R-GTE reference manual ...

[JustenGT8]

I realize this it the gte reference manual and I've not read through all 53 pages yet, But...
Is there anybody who has supercharged their 18rg?
I have a plan to run 45DCOEs draw through a supercharger off a 2.3 liter v6 mazda eunos with e85
Obviously i'm going to need a bigger fuel pump and to rejet the carbs.
Are there any other mods you can think of I might need to consider to get this off the ground?

Cheers, Peter

No offense but twins for a draw through setup sounds daft to me? No advantage over a single 4 barrel and a world of problems. Google some draw through setups and just go with a more commonly used carby...there will then be heaps of setup info, it'll be a shitload easier to to fit and more likely to work better.....the quads will almost surely not work very well.

If you were going blow through then for sure a quad setup makes sense. Not webers though, solexes are the go. They have been used in a nice TRD kit and Lotus use them on one of their turbo 2 litres, intercooled and all. Of course a blow thru SC setup will come with it's own problems

as for other mods, you will want some ign retard on boost and i can't recall the range of the stock dizzy. On my 18RGT (Fuel only ECU) i had it modded to provide more retard as i was running decent numbers for the day (22psi and it saw 30psi on occasion )

Should be a fun thing but ditch the idea of quads

[73GTV]

This was a blow thru setup back in the day or early 1980's and was done with some success, however it did have its limitations, but that is why we are here to imagine and follow thru with finding out if this was or was not a good Idea.

[73GTV]

I am just saying that I spent the best years of my young life then, in Okinawa Japan and was lucky to see some of the older cars as daily drivers for my ten years stationed there. It was worth every day spent wrenching my neck to see which car just drove pass by the sound of the engine over the hundreds of cars on the street. yes bumper to bumper traffic but when a car got free of the herd, it flew past the 50 kph speed limit to test the full range of the speedo...until the next stop light...lol

[73GTV]

No offense but twins for a draw through setup sounds daft to me? No advantage over a single 4 barrel and a world of problems. Google some draw through setups and just go with a more commonly used carby...there will then be heaps of setup info, it'll be a shitload easier to to fit and more likely to work better.....the quads will almost surely not work very well.

If you were going blow through then for sure a quad setup makes sense. Not webers though, solexes are the go. They have been used in a nice TRD kit and Lotus use them on one of their turbo 2 litres, intercooled and all. Of course a blow thru SC setup will come with it's own problems

as for other mods, you will want some ign retard on boost and i can't recall the range of the stock dizzy. On my 18RGT (Fuel only ECU) i had it modded to provide more retard as i was running decent numbers for the day (22psi and it saw 30psi on occasion )

Should be a fun thing but ditch the idea of quads

I posted those pictures for your comment, you seem to have the most experience here and I have read thru a lot of your post, I'm impressed!

[JustenGT8]

That's a blow thru not draw thru kit....as I said, blow thru with solexes dose make sense and has been done to good affect.

Not sure about the TT. It's a decent looking bit of fabrication, but a lot of effort for little gain I suspect?

[73GTV]

That's a blow thru not draw thru kit....as I said, blow thru with solexes dose make sense and has been done to good affect.

Not sure about the TT. It's a decent looking bit of fabrication, but a lot of effort for little gain I suspect?

Here is the full writeup of course in Japanese, specs in English, about 230ps, but remember this was in the early eighties.

[JustenGT8]

Not bad and very torquey no doubt. My single T 2litre made around 300hp and was pretty responsive. With modern turbos I'd have 300rwkw easy enough and be happy with that from a single T

[devilsix]

not an 18RG but my 2TG



Garrett-AiResearch T3 with A/R 48 turbine, 43mm wastegate, 3T-GTEU oilpump, decompressed 2T-G pistons, rebuilt bottom end, TE71 Mikuni's with bigger jets, EFI high pressure fuelpump, Malpassi fuel pressure regulator, custom intake plenum, front mount intercooler, rare longneck distributor, MSD 6AL, Blaster 2 coil, T50 gearbox, 3T-GTEU flywheel, diff conversion to TE71 T293 6.7" lsd.

750kg, 210rwhp at 1 bar. 260rwhp at 1.6 bar.

[toyo-al]

I have nothing constructive to say, but that is awesome mate! I imagine it is ridiculous fun to drive

[MorGo]

Ehh.. 750 kg with turbo 2T-G?? How it is lightened?

[devilsix]

Ehh.. 750 kg with turbo 2T-G?? How it is lightened?

sorry the weight is just guessed by the previous owner so im not sure its a ke20 so It weighs original 780 kg.

[73GTV]

not an 18RG but my 2TG



Garrett-AiResearch T3 with A/R 48 turbine, 43mm wastegate, 3T-GTEU oilpump, decompressed 2T-G pistons, rebuilt bottom end, TE71 Mikuni's with bigger jets, EFI high pressure fuelpump, Malpassi fuel pressure regulator, custom intake plenum, front mount intercooler, rare longneck distributor, MSD 6AL, Blaster 2 coil, T50 gearbox, 3T-GTEU flywheel, diff conversion to TE71 T293 6.7" lsd.

750kg, 210rwhp at 1 bar. 260rwhp at 1.6 bar.

This is Bad-_ss!!! Very nice indeed!!! No heat shield for the Brake system? No problems?

[devilsix]

im gonna build a 18RG blowtrough carb turbo.
What should i do with my ignition system?
Im thinking of msd 6al and blaster 2 coil but i need(?) a boost retard.

The 2tg turbo i have posted a picture of above have a rare longneck distributor that is modded with a volvo turbo boost retard.
I guess i need to do the same thing on the rg distributor? But on the rg distributor i have octane selector. So i dont know how to do it anyone done this before?

[73GTV]

http://www.sdsefi.com/techign.htm

Well the distributor from the 1978 or newer for the 18RG did not have an octane selector, would that be a option?

[MorGo]

Don't bother about the boost retard;you don't need it.With flat-top pistons the compression is so low that you need lot of advance.With retard you just lose power and melt the pistons.
You have to run insane boost to make 18R-G to knock.