NON rise and rate regulator.
Turbo Mini Forums

I friend has asked me if the new injection mini have a NON rise and rate regulator, I have no idea.

Cheers
MW

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

you mean the 2007 Bini???

no silly :), i would have posted on here if so No the last minis with injection, or any car that has them.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

Rising rate

works the same as any modern injection system and your turbo reg

yes he wants a NON riseing rate.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

for a carb???

to clarify, MPi reg is rising rate

Why on earth would you want a non manifold-refeenced regulator??? Very vey strange.

If that's what he wants though, all he needs to do is remove the hose from manifold to regulator, and it magically transforms to a non-referenced (ie non rising and non falling) regulator...

Why on earth would you want a non manifold-refeenced regulator??? Very vey strange.

If that's what he wants though, all he needs to do is remove the hose from manifold to regulator, and it magically transforms to a non-referenced (ie non rising and non falling) regulator...

No i think what you looking for is a linear rate regulator yes? So 1psi of boost = 1more psi of fuel?

J

cheers, i have not idea what he wants for it, it's to do some thing on his skyline, but that's about all i know. I sheel pass on your good advice.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

Factory fuel pressre regulators are non-rising rate.

Those FSE power boost valves are rising rate. They do not control to a constant pressure but allow it to rise at higher flows. Hence they lower the AFR at high flows and give a bit more power without re-mapping the engine.

It is best to use non-rising rate regulators with the likes of Megasquirt as they use VE to generate a flow through the injector based on a constant fuel pressure.

Edited by Paul S on 30th Nov, 2006.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

A lot of modern cars use a static system, mostly dead ends where fuel pressure doesnt change.
The LS1 variants use a fixed 60psi setup, and some tuners, even boosted retain this for simplicity.

Obviously an ideal turbo setup will have a boost referenced regulator.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

Stevie, surely that is only true for a carb'd system. An injected engine would be easier to map with a fixed pressure as previously stated ....... Had loads of fun once trying to help a mate set up his injected car with a referenced regulator .... How I didn't spot he had the wrong sort of reg on there until we'd wasted nearly an hour of RR time I don't know .. LOL

Every day is a school day ...........

How fast and how expensive ...... the same question...

You want a referenced regulator on an EFI turbo to up the fuel pressure with boost so you have a constant pressure differential across the injector.

If you had 20psi boost and 40psi fuel pressure you would only have 20psi differential across the injector, effectively 20psi fuel pressure/flow. Make sense?

Cheers

Daniel

First 5-port EFI turbo in the world (built 1997, running in 1998)

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

Sorry ... not typing what I was thinking ........ Distracted here ... anybody want a dog???? LOL


You are of course correct, you need to reference but in 'fixed rate' which is what I meant to type (not just fixed).

Yes, you have to maintain a differential across the injector seat to maintain the correct atomisation properties of the nozzle.


Some of the big automotive corps. have played with rising rate regs and fuel pressure sensors as they potentially give you the advantage of a smoother map as the fuel pressure can rise faster than MAP negating the need to have a bit of an enrichment bump to cover the transision form NA to boosted, instead having the reg deal with the enrichment so the map can stay more linear. The problem is getting it all sorted for all loads / MAPs etc.

Petrol fuel injection is mostly still very primative in comparison to what the diesel boys get to play with. Even the modern direct injection engines are decades behind the equivelent diesel technology, mainly because the petrol engine is a little more tollerent due to having an ignition source timed independantly.

One day ... LOL

Every day is a school day ...........

How fast and how expensive ...... the same question...