Jump to content
SAU Community

R33 Speedo Difference

skyline_freak_r33

By skyline_freak_r33,
in South Australia

 Share

Recommended Posts

skyline_freak_r33 Community Regular

skyline_freak_r33

Posted
Posted

Hi,

I was meaning to do an R33 non turbo speeod conversion to a turbo one

Mainly due to the lower km's my car has

I ended up buying one and tried putting it in yesterday

All went well but didnt get a chance to drive it

Today i took it for a drive but to my surprise the speedo was out of wack

It was showing roughly double the speed on the speedo than what i was going

my fuel, rpm, oil temp etc were all fine but the speed is out :P

Would this be caused by the speed sender on my gearbox being different to a turbo one?? How could it be a huge amount out? Aren't the speedo's the same? i also bought a series 1 dash which is the same as my car

cheers

Link to comment
https://www.sau.com.au/forums/topic/342896-r33-speedo-difference/
Share on other sites
Carbon 34 Grand Master

Carbon 34

Posted
Posted (edited)

more then likely the sending unit on a non turbo is picking up the signal at a slower pace.

if you put a occiloscope / digital multimeter on the sender wires or OBD tool you can see if the on off pulse is the same as a Non turbo.

check the shop manual to see if it matches, doubt it

check the sender part numbers , bet there different ????

hope that helps. does that mean you can drive twice as fast legally..hahahaha

I'm sure there is a way to fix without spending a heap of dosh

Edited by sapphiregraphics
dark.sky Grand Master

dark.sky

Posted
Posted

I have a RB25DET speedo sender here. $30.

Ive got the RB25 box in my R32, but using a mechanical speedo sender, mine is out at an increasing rate.

Indicated 60kmh = 56kmh GPS

Indicated 110kmh = 100kmh GPS

My speedo and GPS used to be within 1kmh of each other.

  • 1 month later...
rs4StageaTrav Apprentice

rs4StageaTrav

Posted
Posted

I have a RB25DET speedo sender here. $30.

Ive got the RB25 box in my R32, but using a mechanical speedo sender, mine is out at an increasing rate.

Indicated 60kmh = 56kmh GPS

Indicated 110kmh = 100kmh GPS.

Hi , I was driving towards a police speed check station at 60kmh on speedo but the police checker read 56kmh also at highway speeds I have been overtaken by grannies

My speedo and GPS used to be within 1kmh of each other.

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • soviet_merlin
      Duncan's V37.......race car?

      By soviet_merlin · Posted

      Thanks for doing that Duncan! Makes you a good person in my books. We don't get kangaroos or wombats here. But we have bats and it's similar. AFAIK it's often the mums with a baby attached that get hit because they drop lower when starting from a tree. If you hit an animal, check on it. https://www.ifaw.org/au/resources/wildlife-rescue-app An app to get the closest wildlife rescue contact.
    • Murray_Calavera
      Jacks that fit under GTR lips that can reach the subframe?

      By Murray_Calavera · Posted

      My dream is also to have a proper hoist, but I don't think it will ever happen. My quickjack is probably as close as I'll ever get, it really is very good though. 
    • Duncan
      Duncan's V37.......race car?

      By Duncan · Posted

      Yeah we keep on in the dailies, it is pretty poor how many animals get hit and the driver leaves without checking....have saved a couple of little ones over the years. Bit of a gruesome job though, pouches generally need to be cut open because they are so tight and often the joey doesn't realise mum is gone so they are still locked onto the teat. I checked the modules in front of the DS wheel where an oil cooler should go.... There is the radar unit - that can go for race use) One of the 2 HX water pumps, the silver cylinder. That needs to be kept but might be able to be relocated But the bad news, the big computer mounted vertically in front of the wheel (blocking any potential air exit) is the electric steering computer. That is required until/unless i do a hydraulic steering conversion, and in CAD based modern car design it is not like I can just pop a big unit like that somewhere else (plus the loom would be too short anywhere else too). So, the passenger side is OK to clear out (just use a smaller washer reservoir, potentially elsewhere), but the DS no beuno
    • Duncan
      Chris' Toyota Mark ii JZX110

      By Duncan · Posted

      Well, all the best with the new camry It was interesting to hear about the UK process, it is generally a lot more streamlined here with a shipping agent looking after all the import side (noting the exact final price can still be a surprise.....) and I've used a few different brokers on the japan (or US) side, and never had any trouble with any of them....luck of the draw I guess. You mentioned you didn't get the auction sheet (understandable since you bought it from a dealer, not auction), but I always try and get hold of that because they are pretty thorough. I've imported 2x R grade vehicles over the years and both were fine, repairs in Japan are pretty thorough compared to here in Oz.
    • Duncan
      Jacks that fit under GTR lips that can reach the subframe?

      By Duncan · Posted

      BTW I measured the jack I have, it is 70mm at the saddle but you only have about 700 until it returns to 150mm high at the cylinder so it is good but no magic bullet.
×
×
  • Create New...