If you opted for the sport exhaust (INCONELS) there is NO NEED for after market. That is about as good as it gets and McLaren's (I don't know who built is, if it was made in house (Porsche uses Akrapovic )) is just beautifully made.has anyone considered getting an aftermarket exhaust system ? if so which (if there is any)
Probably,but many of the tuning houses will just want to make their own just for sales rather than optimizing something that is just so.I shouldnt think its a big deal putting in a higher flowing cat for extra performance,but they will want to re-design the whole thing to say its unique and charge a higher price for something that isnt.As widowmaker says how can you improve on inconel with a tiny baffle box thats almost a straight through exhaust system,at this level its a backward step.This was one of the questions i had for McLaren and i was told that from the cats back there is no advantage to and aftermarket exhaust, they seemed to think they have it optimized.
On Ferrari's and Porsche's putting on higher flowing cats has a huge improvement in power and also weight saving. I would be interested to here if someone is working on a cat replacement option.
Agree on that GT,if you can find the room,why not just put 100 cell cats in place of the standard ones,probably not as good but you wouldnt have to find the space??Always easier on a 911 they can just hang down a bit lower?4 cats. At -2 cats you ll get performance. But only if the rest of the tuning package is in place (ECU etc).
The 12C has 4cats? I only see two and they look 200cell types?......I wonder what McLaren did to get extra 75hp (rumored) on the HS. I would guess turbo/intercoolers upgraded and INCONEL manifolds with retune ECU ;0)4 cats. At -2 cats you ll get performance. But only if the rest of the tuning package is in place (ECU etc).
You make a good point,would it be usable power without altering the current systems?Only at the top end as the TC is so good im sure anything under 125 mph would slow the car unless you increased the contact patch and re-tuned the TC,also they had initial problems with the cooling,so for the HS to get more power they had to increase the cooling,so an after market bolt on exhaust /turbo/ ecu could be a major backward step for engine life IMO,might be good for drag racing!!of course doing ECU tuning with changing the exhaust/cats is the optimum way to go, but my experience with both forced induction Porsche's and NA Ferrari's is that simply reducing the"plug" that is the cat/exhaust system allows the motor to suck and blow much more freely which means more BHP! . I have not seen a production header on the 12C, but the ones i have seen on the "rolling chassis" look very basic and not tuned, which is indicative of the fact that Mac got the power from the turbo/intake instead of trying to super tune the exhaust.
Either way i think that there is way more power to e tapped from this engine, but how does it effect the traction control and all relevant systems !!
Voice of reason,after watching your vid,what more does it need??The power delivery on this car is sooo linear that it doesnt feel explosive in a strait line, but after taking this car on the track it really highlights how much power this car has across the rpm range. No power for me thanks!!
Interesting about the rods!If they do use this engine in the F1 looks like they have left plenty of potential in it,i assumed the rods would be better than you say given the internal speed of the original engine, i know the torgue is the more important factor,but given the quality of the engine it seems to be a small expense.As for the gearbox i agree thats a completely different matterin my track time i thought that more low/mid torque (and less lag) would be desirable in this car, especially since the smart suspension gives a lot of corner exit traction.
I think around 700-720hp with around 750-800NM would be perfect and still very driveable. I think we are 6 months to 1 year before someone offers this power level.
Andy the rods are apparently nth special so lets forget about 900-1000nm of torque here. Also this gearbox is an unknown entity but i heard that 700nm+ is probably ok for it.
I don't mean to be rude or disrespectful in anyway, but please explain to me the X-pipe ?mine will be going in for ECU software and remove the 2nd set of cats and myabe x pipe
#1 is louder sound
#2 more power