Wiring diagrams

[oti]

Looking for F5B wiring diagrams, both SOHC and DOHC versions. Can anyone help?

[Almost a Mini]

If anyone comes up with a diagram for you, let me know. . .
In the mean time, what do you need to know? I've currently got the dash out of my '87 RS-X (DOHC F5A) and have 'weeded out' a lot of the wiring that I won't need for my car. I know your car is a bit later than mine but you never know, I might be able to help. . .

Pete in Perth.

[oti]

I'll be replacing a SOHC head with a DOHC head (both are F5B), changing over the instrument cluster and probably also the ECU.

If i do find anything i will definately post it up here, if i find a hard copy somewhere i'll scan it too.

[Almost a Mini]

I cant imagine that changing the head will require many wiring mods. . .getting the gaskets is another matter. . .
What's wrong with the instruments in your car? Getting rid of the 90km/h chime (as I saw you mention elsewhere) is easily done - the chime is on the back of the instruments (at least, it is on a CAV72).
If you haven't yet had the car complianced and registered be a bit careful changing ECUs etc - now that the import laws have changed, getting imports licenced for the first time can be *very* tricky if they're modified.

Pete in Perth

[oti]

Problem with the SOHC instrument cluster, see is that the tacho redlines at 7,000 and stops at 8,000. Now the DOHC engine redlines at 9,000 to 10,000 i believe and finishes at 13,000.

Wiring diagrams are good to have incase you get stuck, in any kind of electrical work. I'd rather not sit there all day with a multimeter to find out what goes where. I dont think i'm going to have much luck finding the diagrams though.

As for the compliance/registering it, i'll put the turbo on, get it complianced and registered, and then do DOHC conversion and mods. Alternatively if i can find just a cheap turbo on its own, i'll use that for the time being and then source an F6A or K6A front cut. The new regulations shouldnt affect any cars already in australia or already approved.

[oti]

Also, Almost a Mini, did you have any luck removing the 120/140kph limiter?

[Brayden]

As for the compliance/registering it, i'll put the turbo on, get it complianced and registered, and then do DOHC conversion and mods. Alternatively if i can find just a cheap turbo on its own, i'll use that for the time being and then source an F6A or K6A front cut. The new regulations shouldnt affect any cars already in australia or already approved.

Yes but it will still require an additional engineers certificate for an engine swap in order for your registration and insurance not to be voided. Getting an engine swap in an import approved can also be a very tricky business.

Also, Pete made mention of the head gasket if you plan on doing a head swap. I beleive the price for an F5B gasket is $300+, and timing belts are pretty damn exxy too.

[oti]

Any ideas as to where i can source a head gasket? How about a custom one based on the one that is on the engine now?

[Brayden]

http://www.tamon.org/forum/viewtopic.php?t=320

[oti]

Thanks, sent an email to the UK cappuccino mob. We'll see what options are available. I didnt figure that getting parts would be this much of a headache!

[Brayden]

Yes, there was a reason I bought a domestic '96 Alto instead of an import.

[Almost a Mini]

Also, Almost a Mini, did you have any luck removing the 120/140kph limiter?

Yup - simple matter (on the CA72V at least) of cutting a single wire to the fuel ECU.
On your car, however, things may be a bit different - the CA72V's have a *really* primitive EFI system without any self diagnostics. So, I can get away with cutting wires to things like speed and rev limiters without the engine check warning light coming on (or without the ECU going into 'limp home' mode). On your car, which *should* be a bit more advanced, you may run into this type of problem.
Does your car run a lambda sensor in the exhaust for closed loop running, and does it have a 'check engine' light on the dash? If it does, then chances are it's a good deal more sophisticated than the setup in my car. That being said, when I get home tonight, I'll check and let you know which wires the speed and rev limiters are.
Without the speed limiter, my F5A RS-X is well and truly capable of making the speedo needle spin right 'round and hit the back of the stop. . .on the racetrack, of course

Pete in Perth

[Almost a Mini]

Thanks, sent an email to the UK cappuccino mob. We'll see what options are available. I didnt figure that getting parts would be this much of a headache!

Dany from Cappuccinosport is a stupendously helpful guy and can essentially get you anything you need for wierdo import Suzukis. . .that being said, remember you're buying stuff direct from Suzuki Japan via a guy who lives in France - prices are reasonably nasty!
I managed to get a full DOHC turbo F5A gasket set through him for around $300AUS. . .be aware that every different F5A (ie single or twin cam, NA, turbo or supercharged) uses a different head (and possibly other) gaskets. If you give him your chassis number, Dany will be able to supply you with the correct gaskets for your car - but if you're swapping heads, which gasket to use could become a bit of a lottery.
Good luck!

Pete in Perth

[oti]

With the major hassles of these things it seems the most sane option is to stick with the single cam engine for now, fit the turbo, and swap for F6A or K6A when finances are somewhat stable again.

At least i can say i own both my car and motorbike (both which make similar power, coincidentally) outright. Which is more than i can say for some people who take out rediculous personal loans to buy skylines or similar. Plus, an alto works is much more fun

[Brayden]

Amen to that!