nitro1

http://www.promax.uku.co.uk/fpr3.htm

Fuel pressure regulator..3bar
I run autoathority stage II chips with reliaboost (I get approx 1.6+ bar boost according to the dash meter, not very accurate!!) and worry about running lean/rich. These chips appear less agressive than previous..is that their character? Is a regulator upgrade advisable..for safety? I have a seperate boost meter in Bar to plumb in, what boost level should I safely go to, I have found some recommendations a little unclear...help please.
Cheers

Evan70

You only need it if the chips are designed to run withit. I do not believe Autothority stage II chips are designed to work with it. Personally, I'd dump the Autothority chips and get some real chips from Vitesse.

lart951

most important will be an aftermarket Boost gauge and a wideband sensor, that way you can monitor your exact boost and AFR.

my .02 cents

nitro1

'a wideband sensor' can you explain please :-)

UK952

For monitoring your airfuel ratio e.g. zeitronix, AEM, dynojet, tech edge. A lambda sensor in the exhaust and a guage in the car.
Tony

Evan70

A wideband O2 sensor and gauge. This will allow you to truly know what air to fuel ratio you are running. At the very least, if you are concerned about your A/F ratio get a narrowband A/F gauge that will read the signal from your stock O2 sensor (i.e. AF9 from rennbay). This will at least give you a general idea of whether you are running lean or not.

nitro1

UK952 & Evan70 Thanks...is the UK term 'lambda sensor' in the US an 'O2 sensor' ? If my car is a UK 87 I believe it doen't have a Cat, do I need to 'make a hole' for a sensor????

UK952

There will be a narrow band 'hole' with a bung in it but it is likely to be virtually impossible to remove. A wideband sensor is better mounted in a bung welded further down where the pipe turns to horizontal - a search through this forum should give you a better idea of wideband sensor location.
Tony

daniel951

the o2 sensor is ran through by the downpipe not the cat. u shoud still have one if u don't have a cat at least this is what i thought.

porshhhh951

what he said

lart951

http://www.innovatemotorsports.com/products/lm1.php

Easiest kit to use and install you can get it running in about 15 minutes with the tail pipe adapter.

nitro1

UK952....is there a UK online shop for such products that would be worth a look?

hosrom_951

Widebands measure in 0-5v (some in 0-4 such as EUGO) while narowbands measure in 0-1v

You tell me which is more accurate!!

daniel951

takes his advice. narrowbands are junk. ask me how i know since i have one in the car. that thing was always off so no need for it anymore