R.R.F.R Thingy
R.R.F.R Thingy
Author
Discussion

darren350

Original Poster:

3,450 posts

257 months

Monday 20th June 2005
quotequote all
Rising Rate fuel Regulator Got a 1987 350i Standard. I think I know how these thing work and what they do by increasing fuel presure in the rail. Do I need one ?? Do I need special thingy things to set one up ?? Where do I get one ?? What improvements will I get ??? :spin:

nigel_350i

119 posts

264 months

Monday 20th June 2005
quotequote all
Hi,
I have an '89 350I and was considering one. There were a few threads a while back with some useful inputs. I decided not too as I'm not sure you really gain much with everything else standard. As a minimum you need a fuel pressure gauge. If you do go for one would be interested to know how you get on.
Nigel

mikeb

2,869 posts

311 months

Monday 20th June 2005
quotequote all
Caused me no end of issues when I got one fitted some time ago.

I would leave alone unless you know somebody who can set 'em up and tune your car corectly.

MikeB

pwd95

8,452 posts

267 months

Monday 20th June 2005
quotequote all
mikeb said:

I would leave alone unless you know somebody who can set 'em up and tune your car corectly.

MikeB


Ditto. I've got his old one it the garage if you want it drop me an e-mail you can have it.
Edited to say, the regulator that is not the whole car

>> Edited by pwd95 on Monday 20th June 10:28

wedg1e

27,034 posts

294 months

Monday 20th June 2005
quotequote all
pwd95 said:

mikeb said:

I would leave alone unless you know somebody who can set 'em up and tune your car corectly.

MikeB



Ditto. I've got his old one it the garage if you want it drop me an e-mail you can have it.
Edited to say, the regulator that is not the whole car

>> Edited by pwd95 on Monday 20th June 10:28


If he doesn't take it, I will

mikeb

2,869 posts

311 months

Monday 20th June 2005
quotequote all
That regulator was fitted by a very, very prominent TVR garage. I had to take the car back three times after it was fitted for a re-tune and setup. It was quite a number of years ago now since it was fitted but at the time it cost me a bundle in time and money - And as Wyn has said it is now on a shelf in his garage!

MikeB

pwd95

8,452 posts

267 months

Monday 20th June 2005
quotequote all
mikeb said:
That regulator was fitted by a very, very prominent TVR garage. I had to take the car back three times after it was fitted for a re-tune and setup. It was quite a number of years ago now since it was fitted but at the time it cost me a bundle in time and money - And as Wyn has said it is now on a shelf in his garage!

MikeB


Did you notice much difference with it Mike?

dickymint

29,058 posts

287 months

Monday 20th June 2005
quotequote all
Fitted one on the 350i and it made one hell of a difference to the throttle response and general power thingy!
From memory all that needed to be set up was the pressure at idle. and the idle speed. No problems at all. And only about 2 hours work.

mikeb

2,869 posts

311 months

Monday 20th June 2005
quotequote all
To be honest...nope. it picked up a little smidgin better but thats about all. And for what it all cost and for the time and effort in getting the idling and fueling right afterwards I wouldnt bother.

But obviously Dicky has had more luck. I have noticed that the 450 though has a standard no adjustable version fitted as standard.

MikeB

darren350

Original Poster:

3,450 posts

257 months

Monday 20th June 2005
quotequote all


MikeB[/quote]


Ditto. I've got his old one it the garage if you want it drop me an e-mail you can have it.
Edited to say, the regulator that is not the whole car

>> Edited by pwd95 on Monday 20th June 10:28[/quote]

Well I think I would like to have a fiddle with one so I will contact you via email. after all its not like internal surgery and I am getting bored waiting for BBWF

badredwedge

Original Poster:

3,450 posts

257 months

Monday 5th September 2005
quotequote all
Simon have a look at this

chassis 33

6,194 posts

311 months

Monday 5th September 2005
quotequote all
Being as vauge as possible, to avoid an email from someone threatening to sue me because I've bad mouthed them, despite it being a factual account of actual events. So to protect you all from what the nasty man might say, all of this is heavily censored...

I've experienced an RV8 powered race car with an aftermarket pressure regulator running very very lean this season, because said regulator failed.

Only diagnosed the issue in time because said car had a mixture display fitted (however the car did sound awful and down on power), otherwaise could have been a melted piston in very little time.

Becareful, these things aren't the holy grail.

Regards
Iain

badredwedge

Original Poster:

3,450 posts

257 months

Tuesday 6th September 2005
quotequote all
mmmmmmmmmm.... the one Wyn sent me is on the shelf in the workshop I keep looking at it but aint brave enough to fit it yet. What brought it back to mind was seeing Wee Man on sunday and his has got one fitted. had a great time sat around in Wales talking Wedge while wifey went and bought a handbag

dickymint

29,058 posts

287 months

Tuesday 6th September 2005
quotequote all
badredwedge said:
mmmmmmmmmm.... the one Wyn sent me is on the shelf in the workshop I keep looking at it but aint brave enough to fit it yet. What brought it back to mind was seeing Wee Man on sunday and his has got one fitted. had a great time sat around in Wales talking Wedge while wifey went and bought a handbag


Go for it, only an hour or two's work. I would say that its best to fit a pressure gauge to keep an eye on things though.

GreenV8S

31,014 posts

313 months

Tuesday 6th September 2005
quotequote all
Allegedly, a certain brand of rising rate fuel regulator has a reputation for losing accuracy (due to internal springy bits yielding), something that doesn't normally happen with good quality standard fprs. Allegedly.

chassis 33

6,194 posts

311 months

Tuesday 6th September 2005
quotequote all
GreenV8S said:
Allegedly, a certain brand of rising rate fuel regulator has a reputation for losing accuracy (due to internal springy bits yielding), something that doesn't normally happen with good quality standard fprs. Allegedly.


Couldnt possibly comment

Regards
Iain

chunder

784 posts

275 months

Tuesday 6th September 2005
quotequote all
dickymint said:
Fitted one on the 350i and it made one hell of a difference to the throttle response and general power thingy!
From memory all that needed to be set up was the pressure at idle. and the idle speed. No problems at all. And only about 2 hours work.


Richard, not doubting you found it an improvement but are you sure fuel pressure was set up correctly before you fitted it - if it was a bit low or there was a vacuum leak or the old fpr was shot then that may explain the improvement.

Number 7

4,113 posts

291 months

Tuesday 6th September 2005
quotequote all
Sorry for slight hijack, but I have a Webber adj. FPR fitted (by a main agent years ago when the engine was changed) and am interested to check what fuel pressure it's allowing, as I believe it was increased from standard. Anyone suggest the easiest / safest way to do this?

Hijack over.

7.

wee man

746 posts

266 months

Tuesday 6th September 2005
quotequote all
Thanks for the prod Darren.

I am investigating who fitted the RRFR and other possible work that may have been carried out by he same company on my car before I bought it (RGS Motor sport. Wellingborough).
The results of which may help Jeff Morgan sleep more soundly. As you couldn't get a credit card between the front of my car and the back of his on the run out at BBWF.

Wee man.

jmorgan

36,010 posts

313 months

Tuesday 6th September 2005
quotequote all
wee man said:
Thanks for the prod Darren.


The results of which may help Jeff Morgan sleep more soundly. As you couldn't get a credit card between the front of my car and the back of his on the run out at BBWF.

Wee man.


Twas a fun run around some of them twisties and roundabouts.........thinking bugger, he's still there......welly some more, flippin eck, I am not trying enough

Mind you, I had the plague that day and my shoes on the wrong way and the car wasn't used to the English air.........kidding



PS, my rising rate thingy was binned during the re build but then it probably didn't need it anyway.

>> Edited by jmorgan on Tuesday 6th September 22:01