RT

Sorry if this has been asked before, the SEARCH isn't working.

Are Broquet products widely used amongst the UK WRX community? Does using one actually increase the octane of the fuel? I am primarily looking to delay the onset of det, rather than increase outright power. Is it a good / effective substitute for octane booster?

MY01 STI RA 16000kms.
Tks.

RT

Bump!

Anyone?

Chris.Palmer

Prodrive added them to the P1s why not ask them?

AndrewW

A while back there was a HUGE debate about these things.

A group buy / discounted price was organised through scoobyshop, and many people bought them on the theory of 'they're not too expensive and they may even work'

There were plans for people to install them and come back with evidence of improved fuel economy etc, but I have not seen one post since proclaiming the virtues of them.

Anyone want to buy some snake oil, its going cheap

Andrew.

pumpers

I had broquets fited to my93 wrx as I was getting det occasionally. Since fitting have had no problems. Run on sul at first, now on optimax. Was geting det with the sul without broquets but never have done since fitted. Don't know anything about the tec spec, just my experience. hope this helps. pumpers.

RT

Many tks for the inputs! Anymore please?

Adam M

have fitted on both my cars. dont know baout det but ange seemed to improve tank on tank by 15 miles.

engine was smoother, as was response.

bob rawle did extensive testing and managed to advance ignition as a result of putting in broquets.

So in short they do do something.

I would never recommend them as an alternative to super unleaded though.

Markus

I have broquet fitted to the blackbeast, seems to have given me a few mpg more.

and they must be good for something otherwise why are they fitted to P1's?

(oooo, I've lit the blue touch paper again, prepare for an explosion! )

Suffice to say many people say it's snake oil and does not work, most of those are people who've never actually used it.

but let's not go there.

RT

Okay, thats 3 for, 1 against.

Is there anyone who's installed it and found that it actually made their det problems worse?
tks.

nom

I think that's 3 for and one "I've heard that..." which I don't think counts.
Seems a pretty good response to me!

Adam M

put it this way.

It is a lump of metal.

if it hurts your conbustion, that to me would be just as impressive as if it improves it.

If anything it will do nothing, but it isnt going to be sold enthusiastically to improve a chemical reaction and have the opposite effect is it? that would be either damn stupid, or very unfortunate.

RT

For those who have fitted the Broquet, did you use the "pellets in tank" system or the "in line" system?

Logic would have it that the in-tank units have more time to work on the fuel, whereas the in line system -
1. has less time as the fuel flows by quickly,
2. may lead to pressure loss before the injectors as its mounted downstream of the fuel pump.

Also, seems like the in line system is an excuse to charge the consumer more for what seems to be a more complex system.

Your thoughts please?

KevinH

I thought the inline system was for where it would be impossible to get the in-tank version installed, due to anti-siphon plates or tight bends in the filler neck.

mobile chicane

I have got two number-8 pellet things in my tank.

JFB

Yeap, I've got them fitted in my tank (cost £90 I think) in labour!

It hasn't made a huge difference like fitting the Link or anything but I guess the best thing is peace of mind in that it is supposedly helping the engine. It's no replacement for Superunleaded though.

I was convinced with the detailed impartial testing revealed on the BBS by a highly reputable member and went for it.

Jerome

Kilroy

I averaged 25.9 mpg over 10k miles after fitting Broquet, 2.1 mpg more than I averaged running on sul only.

Car runs smoother and no det.

RT

I have just got one B8T. How do you get it into the tank? Just drop it into the filler or do you have to remove the fuel pump?

tks.

pww

FORGIVE ME BUTTING IN:
TO FIT BROQUET UNDO INSPECTION COVERS WHICH ARE UNDER BOOT MAT THIS PROVIDES ACCESS TO TANK AGAIN REMOVE NUTS IN INSPECTION PANELS TO ALLOW ACCESS INTO TANK. DOSAGE RECOMENDED IS TWO B8T
JUST FOR INFO BROQUET IS ALSO FITTED AS STANDARD ON WRX STI TYPE UK

RT

Why are 2 B8T's recommended? Assuming its a catalyst, given enough time to work (say you fillup at night and don't drive hard till the next morning), one or two B8T's should not make a difference.

Logically, I can only assume that 2 units are recommended if:
1. you want to drive hard immediately after a fillup or
2. as a marketing ploy.

Will someone please enlighten me?
tks.

RT

Its finally in. Boy was it a bother removing the fuel pump. Tubes and connectors need to be shoved out of the way before the plate will fit thru the opening. I put the B8T in the little "surge chamber", hopefully it won't interfere too much with the float.

So far so good, no knock. Only 1 or 1.5 greens on the knocklink at high revs. Hot 30+degC day this afternoon.
Will report any developments.