Highboost running rich - Engines Forum - Peugeot 306 GTi-6 & Rallye Owners Club

Post #1

Hi all!

Last winter I took a trip over to the UK from Sweden and bought Greenbelts Highboost 6.

At first I thought it was crazy fast but now when I'm slowly getting used to the power I also notice it's a little down on the original power from when I first started using it.

After a run in a dyno I got about 300hp on the crank wich is a little bit to low for my liking as it's a highboost.

I installed an Innovate lc-1 and started monitoring it and got down to about 9.7 afr wich is way to rich.

Does anybody got a clue about what might be the problem?

Post #2

Rich W would be the best to ask as he made the kit/conversions

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Ex- Phase 3 China GTi-6 T-Reg

Post #3

I've tried to email him a couple of times since I bought the car but no answers Sad

Post #4

running the correct fuel pressure?

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need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Post #5

kroged wrote:

I've tried to email him a couple of times since I bought the car but no answers Sad

Hes been busy lately.
He'll get back to you i'm sure

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Ex- Phase 3 China GTi-6 T-Reg

Post #6

I was told the highboost should have an 4bar regulator but mine's fitted with a 3bar wich should make the engine run lean?

Post #7

Yeah well that wrong for a start,
Should be 4 bar.
Check this

http://www.lynxpowerengineering.co.uk/sckitguidelines.pdf

Weird its running rich though.

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Ex- Phase 3 China GTi-6 T-Reg

Post #8

Interesting thread :popcorn

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Dimma + Gt35 turbo = Ninja

Solid rear beam mounts £130
07889376885
Dan

Post #9

How does it run from cold? is it very lumpy?

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Super high boost Completed, destroyer of gearboxes and 160mph club

Post #10

birk wrote:

Interesting thread :popcorn

Post #11

roland rat wrote:

birk wrote:

Interesting thread :popcorn

Bout as interesting paint drying really...

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Ex- Phase 3 China GTi-6 T-Reg

Post #12

eliotrw wrote:

roland rat wrote:

birk wrote:

Interesting thread :popcorn

Bout as interesting paint drying really...

or your constant updates of "i'm gonna do x,y,and z to my car but havent got the pocket money to do so" Flip

Post #13

to be fair sounds like a boost leak. engine is mapped for x amount of boost not enough pressurised air =more fuel than air and rich mixture? when was the traction fluid last changed? Dunno

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Super high boost Completed, destroyer of gearboxes and 160mph club

Post #14

roland rat wrote:

eliotrw wrote:

roland rat wrote:

birk wrote:

Interesting thread :popcorn

Bout as interesting paint drying really...

or your constant updates of "i'm gonna do x,y,and z to my car but havent got the pocket money to do so" Flip

In my defence it was X (Suspension for ages I.e years) Charger (Y) I haven't really decided when or even if.
I think I know when but it depends on a few things, I'll either sell up for an m3 or charge it and keep it for a while longer.

________________________________________

Ex- Phase 3 China GTi-6 T-Reg

Post #15

Boost leaks the obvious one

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www.bridgecraftmotorsport.co.uk

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Post #16

allanallen wrote:

Boost leaks the obvious one

I thought that

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andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1

Post #17

or a loss of compression within the engine? have you checked the compression of the engine?

________________________________________

Super high boost Completed, destroyer of gearboxes and 160mph club

Post #18

I will look for boostleaks and try the 4bar fpr. Hopefully it will make some difference.

Maybe the lc1 is not calibrated properly

Post #19

Boost leak is an easy one to check up on with a boost gauge.

Lambda sensor could be one to look at as well.

Be interested if you find the fault then put it back on the dyno, was it a hub dyno by any chance?

________________________________________

Dimma + Gt35 turbo = Ninja

Solid rear beam mounts £130
07889376885
Dan

Post #20

yes you need a boost gauge, would be better if you had one allready fitted while it was running good, you may see a drop in boost then., it can be a bas**rd finding them unless its deisel and then you can just follow the oily sutty s**t that comes out.
Am I right in saying that the ones running standard ecu don't/cant use the map sensor to adjust fuelling based on the manifold absolute pressure?
if so that could explain why it's running so rich, on mine with the dta management, when I have a boost leak, the map sensor adjusts the fuel to suit boost so it doesn't effect the af ratio a great deal.

________________________________________

andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1

Post #21

the intercooler and pipe setups on these is s**t, I can't wait to rip mine out and get a more professional intercooler and pipe work setup.

________________________________________

andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1

Post #22

I replaced the fpr with a 4bar and did a boostleaktest and found nothing so it is not that I'm afraid.

I recalibrated the lc1 to and now it shows a little bit better afr (about 10-11 now) but I dont know if it is becaus of the recalibration or the fpr

Post #23

Does it feel any differrent?

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Super high boost Completed, destroyer of gearboxes and 160mph club

Post #24

Not really.. All I could feel was that it would have a little more power the first lap before the temperatures went up..

Side-question: What oil/water temperatures do you guys with highboost's get when you push them on the track? Mine gets up to 140c on the oil all to quickly wich is way to hot to be good..

Post #25

I have a 19-row oil cooler on my super high boost and on track it doesn't go over 100c which is good.

When I had a 13-row oil cooler it got up to 120c on track.

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"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love