488 Decat / Test Pipes- Very specific question

1. you have turbos and need back pressure
2. You will need software re-map/tuning if you de-cat completely.
3. Speak with Scuderia Systems outside london, they have tremendous experience
4. Check out the NR web site

 

1.- Incorrect. No engine needs backpressure, especially post turbo.
2. Agreed

 

I guess you're right if you don't mind losing low end torque. On a race track it may not matter as much because you're spending most of your time at high revs. But for a road car, you spend a lot of time at the lower end of the rev scale and that's where you'll feel the lose of torque without back pressure.

I don't know about turbo engines, but I'd be surprised if back pressure plays no role in low end torque.

 

Excellent post on this topic:
Myths about "back-pressure" - Mustang Evolution

 

I won't sign a contract unless I've read it or someone gives me the gist of it. LOL

 

With the standard back box, it will sound horrible.

 

FAWKIN EPIC........ Please let me know how this Mod goes, I would like the same results

I was just talking to a tuner when I shot this video of the Straight Pipes. I do not liek the sound but it did shoot little fire balls out LOL. Tuner says they can tune to load up on excess fuel on deceleration to shoot massive flames out if thats something I would like. I just thought that may not be good idea to tune like that. What do I know though.

https://www.youtube.com/watch?v=7eTVfv0dpPg

 

You should read it... seriously.

 

I glanced through it. Very interesting stuff. But the bottom line to me is that reducing back pressure moves torque further up the rev curve. And I can feel the difference when I'm driving around town. if you drive primarily on a race track where you're always at high revs, then low end torque isn't as important.

 

When I opened valves of my cars...
430 was fine.
FF suffered sudden engine stop sometimes.
F12 suffered sudden drop of rpm at low speed.
458 was fine.
LP640 was fine.
Aventador suffered alot from sudden engine stop and I closed valves after a while.

Most strangely, f12 tdf has stock setup and it suffered engine stop once at low rpm low speed with manetino race setting which I believe opens valves all the time.

My guess is v12 does not accept open valve well but v8 does...

So when 488 arrives I will open valves from the begining.

 

Michael

I am still thinking about how to get the best sound from my 488 when it arrives in a couple of months - hopefully!!

As F12 kid has said, Scuderia Systems would be a good start. Chris at Scuderia has given me some recommendations.

He recently fitted Novitec straight pipes to a 488 and I went to have a listen. It sounded great - loud, but with an FI higher pitch tone. However, that car also had a Novitec back box fitted as well, whereas you want to leave the back box as stock.

I suggest you speak to Chris to see if he has done the mod you want.

I am concerned about the possible warranty risk of removing the cats and re-mapping, so won't go that route, but would be really interested to learn how you get on.

 

My fabspeed pipes have been sitting in my living room for 3 month...need to get off my lazy ass and install

Sent from my SM-N920P using Tapatalk

 

best sound is easy - novitec cures all

 

Please, you're going to love it! We're anxiously waiting to hear the results!

When we were developing our 488 components, we were shooting flames with our Catbypass Pipes and Supersport X-Pipe Exhaust System.

[ame]http://www.youtube.com/watch?v=pJrq0t3KhfY[/ame]

 

Michael,

This car is running our ECU tune as well as Catbypass pipes and our Supersport X-Pipe. I know I have a handful of customers that have purchased the tune/catbypass pipes, but no data back yet if they're throwing flames through the factory muffler box. If anyone is interested in trying this out, I would be happy to work with them.
The catted O2 spacers would honestly be a 50/50 shot with keeping the check engine light off. When you're completely removing the cats on this car you run into the potential of overboosting issues since you have much more exhaust gas coming through. The O2 sensors will monitor the exhausts new flow, and send data to the ECU which then tries to compensate by adding/removing fuel and timing. This is why we always recommend an ECU flash when going cat-less so parameters are safe.
I am always available day and night to help with any questions about your 488, don't hesitate to shoot me a message!

 

The little knowledge I have about turbo charged cars is that the turbo assumes the function of evacuating exhaust gasses and typically the exhaust pipes downstream of the turbo are therefore designed to minimize back pressure. Hence the reason that you see turbocharged cars with coffee can size exhaust pipes. IMO deleting the cats will likely have minimal to no effect on torque or power. But, I am not an automotive engineer.

Steve

 

Hi!
Check my insta account ;D https://www.instagram.com/richard.a.99/
Did Novitec downpipes and iPe x-pipe back box and to avoid check-engine the novitec techtronic. The sound is CRAZY loud!!
Thats one way to make the 488 sound like a F car

 

Here is what you are looking for. The car is running the standard exhaust along with catless downpipes.

https://www.youtube.com/watch?v=2lCDBVIWwdQ

 

Which brand I wonder

 

No offense but that is flat out wrong. My F40 without cats is virtually undriveable. manufactures build turbo cars as a complete system and when you change one element like backpressure it can (and does) affect how the car performs. ECU and wastegate mods need to be done as well and this just becomes a rats nest. I realize we're talking about 488 and not F40 here but your comment about NO ENGINE is just flat out wrong. If there is no backpressure the turbo spools up too fast and you get a very spikey car which is not fun (and potentially dangerous).