Broquet/Slotted disk brakes
 

Hi. Has anyone tried using Broquet in their RX8? If yes, is it the inline or in-tank? How much did you pay for it? Has fuel consumption improved? Questions... Questions... I need answers... Has anyone installed Unichip? How's the product? I heard from Max that he does slotting for disk brakes as well, has anyone tried it? How is it?

Do a search, someone has installed the unichip and also have the dyno test chart. You see for yourself whether it is good or not.

I am also asking about the Broquet (Yes, I know someone has installed it, maybe he/she is not from the forums)

Hope this helps

Broquet
 

To all,
Yes I have tried the broquet TOP FUEL 70 in fact. IMHO yes and no. Initially the product seems to give me some extra mileage over one full tank. Mine is a MM spec 6MT usually does 7.5 - 8.7 Km/l in singapore with careful and smooth driving. WIth the product on initially I managed 8.9 km/l . Slight improvement I must say. BUt over the power gain ... hmm ...... I dun think it makes any diff. Throttle responnse get slightly better but other than that ... nothing else. Bought mine for $870 (it takes YEARS to cover back from fuel savings) but judging from the ever so slight increment ... I have no choice but to return the product back to the shop since it comes with 30 day money back guarantee.
Point 2, when it says about the using 95 fuel and not losing any pwr.... a very big NO. The 8 still prefer 98 no matter wat. Tried both 95 and 98 .. and 98 gives me the above figures and 95 no matter how well I managed my driving I can only get 7.5 or even less in mileage. It might be cheaper to pump 95 but since it gets you less mileage .... you will still end up paying the same amount. Might as well have the 98 in tank and have the power in hand when you need it.

Hope this help clears the air.

I am using the B40 from my old car. Cannot really tell as i have it installed on the 3rd day after i got my car. Maybe it works but broquet is expensive and as current9 says its still better to save the money as it takes too long to recover the money spent.

I am interested in the unichip but i am quite wary about re-tuning the 8s chip. Our weather is quite hot and humid and leaning the a/f may make the engine run to hot.

In the main forum, what people got from a chip-tuning is a few hps on the top end. Then again it all boils down to a competent tuner and great tuners are rare and great ones will costs you.

If its legal, i would rather go for a SC as its confirm you get a power increase throughout the tach range.

Broquet has always been a tricky subject so I'll leave it to those who have tried it. I really don't see any difference at all (either in power or mileage) when I use 98 and 95 petrol so I'm sticking to 95. Maybe CURRENT9 is using a different brand of petrol.

Unichip DOES work on the RX-8 and contrary to what Emperor said, the major performance gain is in the low end, NOT the top end. Tuning is a black art and fundamentally it's how willing you are to risk damage to your engine. If you tell the tuner to tune it agressively, he will. If you are scared that it will damage your engine or void your warranty, then don't do it.

I've heard that you can get your brake rotors slotted, but I don't know anyone that has done it. Slotting doesn't really do much to your braking performance in normal street driving. It does help to maintain your braking performance at the track by keeping your rotors slightly cooler. I would rather go for 2-piece rotors that are lighter which will improve performance rather than just slotting your heavier stock rotors.

I guess I have to comment on this seeing I am one of those with Broquet,.... I have a gut feeling the inline don't do much, as oppose to the intanks. I have at the moment 6 B8s in the tank. It takes roughly about half an hour to fully react with a full tank of gas. So far, we have experience slightly better performance at the low end... A little more torque, acceleration a little more eager, feels smooth.

As for fuel economy, Well I have not driven it all the way to the bottom of the tank ever since I got the broquet in tanks installed.... that's because I have been going up north to fill up with SGrenesis and SXV drifter.

As "Current9" mention, no point dropping to 95. Because the distance you lose on 95 does not warrent the savings on the fuel cost.

It could be my imagination but I find the exhaust tone a little better. More Grrrrrr if you know what I mean.

Two sides of the bench.

I may be wrong on the tuning part. You guys can do the search on tuning to see that quite a few guys actually only gain on the top-end. Why i believe so too is because the engine runs on a closed-loop that the ecu actually overides all sensors info for low-rpms; this is true for most vehicles (not so sure about the 8 though). Then again i may be wrong or there are ways to alter the ecu's function for low-rpms.

I am actually more interested in low-end than top-end.

What sqflayer said may also have a point. I ever spoke to unichip and they said they can tned the engine for low or top-end gains. How true, i do not know.

One thing for sure, i have read alot about the 8's engine and most experts agree that mazda have already done a very good job and there isn't much room for improvement. There is but just that the improvement may be very minimal.

I keep an open mind...

The Unichip can be tuned for low end and that's precisely what we need most. It's already been done and dynoed and tested. No if, ands, or buts. Quite significant gains around the 3-4k rpm band and tapering off towards the higher revs. However, I agree that it's a widely known fact that the RX-8 is already very optimised, so cost per HP of increase in power gets significantly (sometimes exponentially) more expensive.

Bro...can advise where to get the Unichip done and the damage?? :)

Unichip is available at a number of places but more importantly is who do you want to tune it for you. Cost is around $800-$1000. Talk more at the meet-up.

Thanxs bro! :)