fast intentions exhaust questions

BOBz · 03-12-2010, 12:03 PM

I'm thinking about installing the Fast Intentions Syst. Probably with the 12" resonators. Anybody have any thoughts on the benefits of wrapping the pipes with 2" high temp. header wrap? Especially directly under the cabin area. I've noticed the stock syst. has a metal shield around the pipes for the purpose of heat insulation. Also, would there be any difference in the noise level inside the cabin if the resonators were deleted, and only the silencers out back with stock cats.

phelan · 03-12-2010, 01:03 PM

Quoting Tony himself on this one:

Quote:

Originally Posted by F.I. Inc.

Yes, do not wrap your cats in header heat wrap. You will trap too much heat in them and possibly cook them.

The wrap is most commonly used for headers to keep the heat in them and not cooking other components on the car that are in close proximity.

What it also does is keep the exhaust velocity up by keeping the inside of the header hot. This works incredible in a turbocharged application due to the fact that turbos are driven off of heat.

I'd assume you'd get increased noise levels if you cut the resonators, but you run a higher chance of droning in the system.

F.I. Inc. · 03-12-2010, 01:12 PM

By relieving back pressure you will reduce friction and heat. Our system will run cooler than the stock. At no point is our system in close proximity to cooking anything other component on your car. The wrap is overkill and you do not need it with our cat back exhaust system. Do not under any circumstances wrap a resonator. You will trap the heat inside of it and cook the packing right out! Header wrap is intended for headers. I would only use it as a last resort. It is primarily effective in turbocharged applications because it traps a majority of the heat in the header. The turbos feed off of heat and you will make more power. The flip side is, it traps moisture between the wrap and the header and after time it will make the tubing brittle...

If you are interested in an exhaust, please do not hesitate to contact me directly...

Thank you,
Tony

BOBz · 03-13-2010, 09:44 AM

Thanks Guys, I appreciate your input! Also plan to install low restriction intakes. I'll probably go with the shorties,won't they be better for the lower R.P.M. range? I would think the long tube intakes require higher R.P.M.s, you know, intake air inertia and stuff like that.

theDreamer · 03-13-2010, 09:46 AM

Quote:

Originally Posted by BOBz

Thanks Guys, I appreciate your input! Also plan to install low restriction intakes. I'll probably go with the shorties,won't they be better for the lower R.P.M. range? I would think the long tube intakes require higher R.P.M.s, you know, intake air inertia and stuff like that.

Nope, go with long tube, short ram is worthless in this car. Engine bay gets hot enough, you do not want to pull more hot air into it, get those filters away from the engine. Other option if you want to keep stock boxes is to look at Modshack and his DIY he did. Basically replace filter, silicone tube to replace piping, and ducts to bring in more cold air.

Also, the heat shielding on the Z, in many places, is just them covering themselves. Think of it as liability insurance, if something does go wrong they are covered, but aftermarket systems run cooler and more efficient.

BOBz · 03-13-2010, 09:53 AM

But doesn't the whole nose have to be removed just to clean / replace the filters? I think that would be at least twice a year, and a couple of hours.

theDreamer · 03-13-2010, 09:54 AM

Quote:

Originally Posted by BOBz

But doesn't the whole nose have to be removed just to clean / replace the filters? I think that would be at least twice a year, and a couple of hours.

Yes the bumper has to come off, and no it is not twice a year.
K&N filters are good for 50,000 miles before a recharge is needed and then another 50,000 when you replace them or recharge them again. Recharge is cleaning/re-oiling them.

Also, bumper removal is around 10-15 minutes after the first time and you learn where all the clips & bolts are. We have taken mine off twice now and it is extremely easy, hardest part is getting the bolt in the wheel well area but that is a breeze now since we know where to look.

BOBz · 03-13-2010, 10:10 AM

Well, doesn't seem as difficult as I'd imagined. Things are looking better, I'm sure I'll be pleased with the results, both performance and sound.Is it my imagination, or does the 350z and G35 ('08 and earlier) actually sound better?

theDreamer · 03-13-2010, 10:30 AM

Exhaust sound?
Maybe, stock sound I like some of the earlier 350/G35 sounds but aftermarket I was not to thrilled about (from what I have heard myself in person).

BOBz · 03-13-2010, 12:25 PM

I e-mailed Scuderia and asked if anything is available for the Z using "TUBI" exhaust systems. Nothing in the works as yet, but they'll let me know. If you want to hear something that will make your hair stand on end U Tube - TUBI Exhaust Systems Ferrari/Lamborghini Exhaust Sounds.So far, Fast Intentions is the closest for that exotic tone, in my opinion. The GTM exhaust , twin turbo 370Z dyno test as well. Gotta go ,catch up with you Wed..Bobz

kevin.z · 03-13-2010, 08:08 PM

you guys recommend taking off the little black plastic on the front bumper near the fangs? Modshack cut a hole in the plastic and connect it with a tube to feed air to intake. i am thinking of just taking off the plastic but no tubes for more air for the stillen g3.

03-12-2010, 12:03 PM	#1 (permalink)
BOBz Base Member Join Date: Jul 2009 Location: Mass. U.S.A. Posts: 29 Drives: 09 370z base auto Rep Power: 15	fast intentions exhaust questions I'm thinking about installing the Fast Intentions Syst. Probably with the 12" resonators. Anybody have any thoughts on the benefits of wrapping the pipes with 2" high temp. header wrap? Especially directly under the cabin area. I've noticed the stock syst. has a metal shield around the pipes for the purpose of heat insulation. Also, would there be any difference in the noise level inside the cabin if the resonators were deleted, and only the silencers out back with stock cats.

03-12-2010, 01:12 PM	#3 (permalink)
F.I. Inc. The370Z.com Sponsor Join Date: Feb 2009 Location: Simi Valley, CA Posts: 2,989 Drives: 2010 GT-R/2007 F-250 Rep Power: 685	By relieving back pressure you will reduce friction and heat. Our system will run cooler than the stock. At no point is our system in close proximity to cooking anything other component on your car. The wrap is overkill and you do not need it with our cat back exhaust system. Do not under any circumstances wrap a resonator. You will trap the heat inside of it and cook the packing right out! Header wrap is intended for headers. I would only use it as a last resort. It is primarily effective in turbocharged applications because it traps a majority of the heat in the header. The turbos feed off of heat and you will make more power. The flip side is, it traps moisture between the wrap and the header and after time it will make the tubing brittle... If you are interested in an exhaust, please do not hesitate to contact me directly... Thank you, Tony __________________ *Follow us on Facebook: Fast Intentions Inc.* Phone: (805) 522-FAST (3278) Email: tony@fastintentions.com www.fastintentions.com "FUELED BY PASSION"

03-13-2010, 09:44 AM	#4 (permalink)
BOBz Base Member Join Date: Jul 2009 Location: Mass. U.S.A. Posts: 29 Drives: 09 370z base auto Rep Power: 15	Heat wrap Thanks Guys, I appreciate your input! Also plan to install low restriction intakes. I'll probably go with the shorties,won't they be better for the lower R.P.M. range? I would think the long tube intakes require higher R.P.M.s, you know, intake air inertia and stuff like that.

03-13-2010, 09:53 AM	#6 (permalink)
BOBz Base Member Join Date: Jul 2009 Location: Mass. U.S.A. Posts: 29 Drives: 09 370z base auto Rep Power: 15	intakes But doesn't the whole nose have to be removed just to clean / replace the filters? I think that would be at least twice a year, and a couple of hours.

03-13-2010, 10:30 AM	#9 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4210	Exhaust sound? Maybe, stock sound I like some of the earlier 350/G35 sounds but aftermarket I was not to thrilled about (from what I have heard myself in person). __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

03-13-2010, 10:10 AM	#8 (permalink)
BOBz Base Member Join Date: Jul 2009 Location: Mass. U.S.A. Posts: 29 Drives: 09 370z base auto Rep Power: 15	Well, doesn't seem as difficult as I'd imagined. Things are looking better, I'm sure I'll be pleased with the results, both performance and sound.Is it my imagination, or does the 350z and G35 ('08 and earlier) actually sound better?

03-13-2010, 12:25 PM	#10 (permalink)
BOBz Base Member Join Date: Jul 2009 Location: Mass. U.S.A. Posts: 29 Drives: 09 370z base auto Rep Power: 15	I e-mailed Scuderia and asked if anything is available for the Z using "TUBI" exhaust systems. Nothing in the works as yet, but they'll let me know. If you want to hear something that will make your hair stand on end U Tube - TUBI Exhaust Systems Ferrari/Lamborghini Exhaust Sounds.So far, Fast Intentions is the closest for that exotic tone, in my opinion. The GTM exhaust , twin turbo 370Z dyno test as well. Gotta go ,catch up with you Wed..Bobz

03-13-2010, 08:08 PM	#11 (permalink)
kevin.z Enthusiast Member Join Date: Oct 2009 Location: vancouver(shipping:WA Posts: 359 Drives: 09 370z M6 PGtouring Rep Power: 15	you guys recommend taking off the little black plastic on the front bumper near the fangs? Modshack cut a hole in the plastic and connect it with a tube to feed air to intake. i am thinking of just taking off the plastic but no tubes for more air for the stillen g3.

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