How do you retrofit a 22re comp/loom to an 18rg???

[SillyCarS]

Hey guys,

I've tried doing a number of searches on this, both google and toymods, but havent come across an article. I was hoping someone could either point me in the right direction or share their experiance with the rest of us.

Cheers

Craig

[BeRad]

get both wiring diagrams use the engines loom you are using and refit the plugs that run into the cars body loom/fusebox's etc. other than that i dont think youll find much as far as a step by step guide goes.

[o_man_ra23]

forget it. the ECU is a POS, and so is the AFM. Get some 4AGE quad throttles and injectors, and an aftermarket ECU like a megasquirt or Adaptronic. That is if your not boosting. For boost, I would suggest a custom job, get a tig and do it yaself. Supra injectors are cheap and quite adequate, so are a good option for that. Aftermarket ECU too.

Also the 22RE throttle body is tiny, so something bigger is a must (maybe XF foulcan 70mm throttle)

Cheers, Owen

[o_man_ra23]

get both wiring diagrams use the engines loom you are using and refit the plugs that run into the cars body loom/fusebox's etc. other than that i dont think youll find much as far as a step by step guide goes.

18RGs were carby fed... so thats not an option.

Cheers, Owen

[SillyCarS]

ive got the stock 18rgeu intake manifold, its plenty big approx 3"

going for 13b 510cc injectors plentyful and reasonably priced, 22re is just to get it back on the road, eventually when i get the money motec will be the one im going to use there is a guy on my adeaide uni formula sae team that can program it

again thanks for the advice oman

craig

[Screamn_Sleeka]

4AGE 20V throttles will starve a 2.0ltr, they are tiny.
If you do want ITB's, use the quads off a suzuki GSXR.

[o_man_ra23]

look into the Adaptronic ECU, just on the market, complete with loom and full backup for about $1000. You can sell the 22RE setup for about $500 if you look for a local wood duck with a hilux/landcruiser bundera. As I said, the AFM in them is crap, that and its restrictive, you would be better off doing the job properly now, and just having to re-map a computer later for boost rather than wiring twice (combining the wiring in with the existing setup is the biggest PITA)

I used to have an 18RGEU setup, and the TB was quite small (closer to 2-2.5"). Well worth upgrading, but it gives you a good start not having to make runners etc.

With the injectors, you need to see if they are low resistance (will require external resistor pack) or high resistance. You must wire in the external resistors if required, and must not wire them in if not required.

Dont forget you need the 18RGEU thermostat housing, or you can modify the original one by grinding enough out to fit in the fuel rail (plenty of material in the TH to do this safely) and you need the one with 2 temp sensor holes, one for the ECU and one for the guage. Also you will probably want to tap a hole in the plenum to put an air temp sensor in. The closer this sensor is to the head, the better.

Cheers, Owen

[jezza323]

4AGE 20V throttles will starve a 2.0ltr, they are tiny.
If you do want ITB's, use the quads off a suzuki GSXR.

have u actually measured them? GSX-R are pretty much the same size as 20v ones, particularly blacktop

if blacktop 20v quads are good enough for a JGTC 2.0L turbo 4cyl then y not u?

[o_man_ra23]

have u actually measured them? GSX-R are pretty much the same size as 20v ones, particularly blacktop

if blacktop 20v quads are good enough for a JGTC 2.0L turbo 4cyl then y not u?

Im with Jezza, the 20V will give a better throttle area overall than a stock 18RGEU TB for sure. In fact they will probably out do most single TBs by a long shot. Anyone got butterfly sizes for them?? Would be worth doing for turbo setup with a plenum, really good throttle response.

Cheers, Owen

[SillyCarS]

I used to have an 18RGEU setup, and the TB was quite small (closer to 2-2.5"). Well worth upgrading, but it gives you a good start not having to make runners etc.

how about this one???





yeah will prob just sell the 22re set up and look into something else

thanks for the tech info on the wiring too, uni goes back tomorrow so the project will be on hold for another month and more hording will begin once more...

cheers

craig

[o_man_ra23]

thats the opening, but you need to look at the size of the butterfly. They narrow down toward the back. Good for venturi effect, but still quite inadequate.

Cheers, Owen

[tricky]

4AGE 20V throttles will starve a 2.0ltr, they are tiny.
If you do want ITB's, use the quads off a suzuki GSXR.

S/T throttles are 43mm at the butterfly, B/T 45mm and TRD ones are 47mm. GSXR-1000 throttles are also about 43mm at the most restricted point! They have a nice taper and injector bosses in the throttles but other than that, it's a PITA to get the secondary throttles removed... It's just crap you don't have to do if you go to the effort of making up a new inlet manifold, which you'd be doing anyway...



Back on topic... Yes, the 22re gear is crappish. It'll run the car, but you'll have to spend hours doing the AFM tweaks or pay someone else to do it. You'll get more useable power down low than with carbs, but it'll choke up high. The truth of the matter is, if you do the work now, only to do the job again (properly) down the track, you'll be pissed off that you didn't save money by doing the job once. Have you got a spare set of carbies to run it off until you go the MO??

Seems like polishing the 18RG turd is a popular pasttime for uni students! On that note, I'd better stop procrastinating... These assignments won't do themselves!

EDIT a quick search revealed stock GSXR throttles are 42mm, and 44mm throttles are available.

[SillyCarS]

well I could go get a 1g, but they're like arseholes, everyones got one

[tricky]

Well dude, you hit the nail on the head there!

That's exactly the reason I'm sticking with my RG. They have so much to prove!

[o_man_ra23]

Not too many people have gone with beams motors yet, or 3SGTE, but then again, they have nothing to prove , everybody already knows they are the McShizzle.

Cheers, Owen