Jump to content
SAU Community

Loud Noise On Acceleration And Bosch 044 Intank Fuel Issue

pimpek

By pimpek,
in General Maintenance

 Share

Recommended Posts

pimpek Enthusiast

pimpek

Posted
Posted

Hey guys,

Pretty new to the scene and very overprotective of my car hehe just need some help to calm my paranoid mind about my car...

I got 92 R32 GTR and i get this loud mechanical sound upon acceleration at low rpm which almost sounds like its coming from the middle of the car. Usually happens when im 2nd gear and going over a speed bump then accelerate once i've gone over it, as well as driving around a car park or at low speeds in street the noise comes on accelration and then after about 2k rpm the sound just dissappears. Took it to a mechanic and they said everthing is fine and its just a common sound from the gearbox and its normal. Still i find the noise loud and annoying and was wondering if it could be something else such as cv joint or diff. Was wondering if anyone else has had the same problem?

Also had a new Bosch 044intank installed and the car doesnt wanna start as nicely as it did before the swap (spark plugs? battery?)any ideas on this would be a big help

Many thanks

Sarumatix Veteran

Sarumatix

Posted
Posted

R32s are awesome, of course you are protective ^_^.

Sounds like the transfer case, may need some more fluid. Get your mechanic to check it out (common problem in R32 GT-Rs I believe). When it gets very low it will make a sloshing sound so I don't think yours is serious if much more than normal :) so don't stress. The other possibility is the clutch engagement but without being more specific on the sound I would be inclined to think the first is what you are hearing.

As opposed to Walbro, Nismo, stock fuel pumps the 044 doesn't keep fuel pressure when car is switched off (I forget the exact reason). With that pump all you need to do is let the fuel line prime for 1-2 seconds before you crank the engine. You'll learn to hear the sound when the fuel reaches the fuel rail.

pimpek Enthusiast

pimpek

Posted
  • Author
Posted

also in regards to the sound possibly being a clutch issue, i have recently installed a 4000 pound heavy duty single plate clutch. to be honest the sound is a bit hard to describe but i would definitely say its a rough mechanical turning sound almost shuddering. dont know if it will help, but yea

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

    • Kapr
      RB20DE NEO smallbox clutch.

      By Kapr · Posted

      For once a good news  It needed to be adjusted by that one nut and it is ok  At least something was easy But thank you very much for help. But a small issue is now(gearbox) that when the car is stationary you can hear "clinking" from gearbox so some of the bearing is 100% not that happy... It goes away once you push clutch so it is 100% gearbox. Just if you know...what that bearing could be? It sounding like "spun bearing" but it is louder.
    • GTSBoy
      Mistakes were made, my R34 Story

      By GTSBoy · Posted

      Yeah, that's fine**. But the numbers you came up with are just wrong. Try it for yourself. Put in any voltage from the possible range and see what result you get. You get nonsense. ** When I say "fine", I mean, it's still shit. The very simple linear formula (slope & intercept) is shit for a sensor with a non-linear response. This is the curve, from your data above. Look at the CURVE! It's only really linear between about 30 and 90 °C. And if you used only that range to define a curve, it would be great. But you would go more and more wrong as you went to higher temps. And that is why the slope & intercept found when you use 50 and 150 as the end points is so bad halfway between those points. The real curve is a long way below the linear curve which just zips straight between the end points, like this one. You could probably use the same slope and a lower intercept, to move that straight line down, and spread the error out. But you would 5-10°C off in a lot of places. You'd need to say what temperature range you really wanted to be most right - say, 100 to 130, and plop the line closest to teh real curve in that region, which would make it quite wrong down at the lower temperatures. Let me just say that HPTuners are not being realistic in only allowing for a simple linear curve. 
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      I feel I should re-iterate. The above picture is the only option available in the software and the blurb from HP Tuners I quoted earlier is the only way to add data to it and that's the description they offer as to how to figure it out. The only fields available is the blank box after (Input/ ) and the box right before = Output. Those are the only numbers that can be entered.
    • GTSBoy
      Mistakes were made, my R34 Story

      By GTSBoy · Posted

      No, your formula is arse backwards. Mine is totally different to yours, and is the one I said was bang on at 50 and 150. I'll put your data into Excel (actually it already is, chart it and fit a linear fit to it, aiming to make it evenly wrong across the whole span. But not now. Other things to do first.
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      God damnit. The only option I actually have in the software is the one that is screenshotted. I am glad that I at least got it right... for those two points. Would it actually change anything if I chose/used 80C and 120C as the two points instead? My brain wants to imagine the formula put into HPtuners would be the same equation, otherwise none of this makes sense to me, unless: 1) The formula you put into VCM Scanner/HPTuners is always linear 2) The two points/input pairs are only arbitrary to choose (as the documentation implies) IF the actual scaling of the sensor is linear. then 3) If the scaling is not linear, the two points you choose matter a great deal, because the formula will draw a line between those two points only.
×
×
  • Create New...