Jump to content
SAU Community

Recommended Posts

i was wondering if any one can help me out with some info.......

i actually own a 1966 prince skyline gt-b. it use to have a l28 with twin carbs till about 3 months ago when the top let go.

no i am almost finished completing a RB20DET engine conversion....... only catch..... i need to know anbot the pulse signal the speedo gives to the computer..... i wont to try and use the orginal speedo.... and fit a pulse generator like the ones the use for peed alerts.

The Question is: does the speedo give out a pulsing power feed to the computer or does the computer give the speedo a power feed and the speedo turnes that to a pulsing earth feed....... any help would be greatly appreciacted in this matter. Cheers...... :P

Link to comment
https://www.sau.com.au/forums/topic/64464-help-with-my-engine-conversion/
Share on other sites

Speedo is mechanically driven off the gearbox.

If you mean the tacho, then the ECU sends the signal to the tacho, presumably based on the number of impulses it gets from the CAS.

  • 2 weeks later...
Try a guy on here by the name of prince....he has a C110 gt ex with an rb20 running carbs...yes...carbs.....if anyone knows for sure i'd bet he does

Good call Jason.

Pete, "Prince" is Ray. You met him at Beechworth. White '73 coupe with the rb20. If you have no luck here, You should be able to get through to him via the Prince register.

Don't forget to keep us classic tragics :) up to date with the progress.

Can you make it to Goulburn??:whatsthat

Cheers,

Jim.

i was wondering if any one can help me out with some info.......

i actually own a 1966 prince skyline gt-b. it use to have a l28 with twin carbs till about 3 months ago when the top let go.

But it sounded so nice with the L28 in it!

Yes, I've seen you around Adelaide - I own that red DR30 that was in front of you on North Terrace a few months back...

it did sound nice ben with the l28 in it... but when the head went bang..... and i couldnt find the head i wanted.... ( p79, p90 or a l20et head)... my mate decide i should upgrade.... and wot better up grade than a sleepy looking prince with an rb20det? if ya wont a look at it here's my web page..

www.cardomain.com/memberpage/547037

i look at it it will be quick and still keeping with the theme of a true skyline gt with a high performance 6cyl in it.

i look at it this way.... my car has been severely modified before i got it ( ie: big steel flares, l28, twin carbs large mags... and i mean from a 165-13 inch rims thats suppose to be on it to a 235-60 -15... wot more could i say.) i have improved it more with the new motor... volvo 4 spot calipers on the front bigh front mount intercooler hidden behind the grill . Painted from white to a nice purple and fixed the body.... now she will be a lil' weapon when she's back....

have to catch up sime time so you can have a look at it...

Pete...

Ps: maybe i be able to keep up efortlessly now with this conversion... if i can get the wheels to stick to the ground!

Guess what?

I've got a complete L20A head (requires recon) just lying around.

I've also got a welded, but otherwise bare N42, also lying around....

Still the RB20DET is a better way to do things.

Actually, looking at your car in its 'before' state, I reckon I had a look at it in a car yard down south in around 1995!

just found out that i do need signal for speed sensing for the ecu... now the question i need to ask is the signal a square wave...(negitavely earth) or saw tooth wave ( poistively earthed). if i can find out i might be able to use a pulse generator that they can fit speedo cable ( ones they use for retro fit of speed alerts on aftyermarket cars)......

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • A 1.5 way is a 2 way. It is just a 2 way with a less aggressive ramp on overrun.
    • The ABS and/or TCS being missing/broken will not cause the engine to misbehave. It just casues CEL to come on and annoy you. The CEL is useless if it is always on, so you have to do the things you have to do to get rid of it, so it can be useful. Being a Stag ECU, then yes, it will not expect TCS to be present. But it will expect ABS to be present and working. You will need to either make the ABS CU talk to the ECU (don't ask me what that will take on an NA R34), and make sure the hardware is working....or, you just need to blank it out in Nistune. Do not persist with the stock ECU. You will just have problems. Gte it Nistuned. Start from there. DO YOU HAVE A BOOST SENSOR? The ECU's boost sensor that it. It is connected to the loom at the rear of the coil cover. Usually rides on the firewall on an R34, but is usually bolted down to a bracket along with all the other crap at the back of the coil cover when a Neo is dropped into another car. If you do not have it, the ECU will shit the bed. So, do you have one?
    • So sadly the fuel pump etc was not it. The pump and filter is new and it is still cutting around 4000 rpm. A read something about ABS/TCS (engine is from stagea and ECU too so no TCS) and i dont know for 100% that my car has ABS. It has ABS "cube" in engine bay but i dont think it works(or at least from my braking experience). Can be something like that?  I will be driving the car next week to Nistune tuner to properly see what is wrong...  
    • the Tomei LSD fluid with lsd kit. frustrated that it was shaking the car to crap and affecting everything else negatively, I pulled the diff last night, and removed the lsd carrier, could not find anything wrong, however it seem to be 100 locked up acceleration, and deacceleration, wondering if they sent me a 2 way not a 1.5??  either way I installed the stock open carrier back in place. test drove everything smooth as butter again. no shake, shutter, random, what felt like clutch slip and grab or drive shaft play, etc. something differently wrong in side the lsd. I might bother taking it apart (if possible) to figure out what's going on inside this carrier, as bought too long ago to return.  only draw back is its back to a one wheel wonder.
×
×
  • Create New...