Fast Intentions Long Tube Headers review +FULL BOLT ON dyno (G3 FI CB & FI LTH)

Cyberium · 06-23-2010, 06:40 PM

RASP... AND HISS!?! SIGN ME UP!

...not

Jordo! · 06-23-2010, 06:42 PM

Looking forward to dyno results -- no baseline????

Just to be clear, LTH's will possibly have some low end losses and make most of the gains up top...

EDIT: No, no -- other way round -- duh...

theDreamer · 06-23-2010, 06:57 PM

Quote:

Originally Posted by Jordo!

Looking forward to dyno results -- no baseline????

Just to be clear, LTH's will possibly have some low end losses and make most of the gains up top...

Incorrect, these LTH have gains on the bottom and throughout the powerband and a minor loss up top.

Daishi · 06-23-2010, 07:10 PM

Quote:

Originally Posted by Cyberium

RASP... AND HISS!?! SIGN ME UP!

...not

Theres no rasp.. You hear the hissing through the exhaust because of all the flow.. But theres no rasp at all out the back through the mufflers just music.. unless ofcourse he has no resonators...

Gunzero · 06-23-2010, 07:26 PM

Quote:

Originally Posted by LateralG'z

Most of the restriction is in the Cats, you will see more gains with those being replaced first.

..but doesn't the LTH remove the cats?

Jordo! · 06-23-2010, 08:20 PM

Quote:

Originally Posted by theDreamer

Incorrect, these LTH have gains on the bottom and throughout the powerband and a minor loss up top.

Duh, yes of course that makes sense -- long runners move peak torque downwards in RPM range (short runners generlaly mean more power up top) -- I don't know what I was thinking when I wrote that ... had it backwards (have another beer, Jordo)

Daishi · 06-23-2010, 08:29 PM

Quote:

Originally Posted by Jordo!

Duh, yes of course that makes sense -- long runners move peak torque downwards in RPM range (short runners generlaly mean more power up top) -- I don't know what I was thinking when I wrote that ... had it backwards (have another beer, Jordo)

Thats still not entirely correct.. the long tubes increased torque for the Z accross the entire rpm range vs any of the shorties available for the z. And power has increased over the entire rpm range it depends on the exhaust your running.

Jordo! · 06-23-2010, 08:41 PM

Quote:

Originally Posted by Daishi

Thats still not entirely correct.. the long tubes increased torque for the Z accross the entire rpm range vs any of the shorties available for the z. And power has increased over the entire rpm range it depends on the exhaust your running.

Thats the general rule of thumb as far as relative runner length for any combustion engine (which I wrote totally ***-backwards)... you can develop a stepped design that will widen the powerband, which may be the case here, but if the power gains move in the opposite direction then VVEL tuning is likely to blame.

In general, longer runners = peak torque moves down; shorter runners = peak torque moves up. Pipe diameter will fix total possible peak power.

Individual results may vary

Improved flow should (overall) move peak torque upwards too as you tend to see peak cylinder filling (and therefore empyting) at higher RPM's, depending on head design and displacement, that is...

TARDCORE · 06-24-2010, 01:35 AM

Ok I updated the first post. I have the 18'' resonators. I have some bad news unfortunately. I was pulled over by one of the wonderfull chula vista police officers. I wasn't speeding, I wasn't doing any kind of aggressive driving, no peeling out, no reving my engine. I was sitting at a stop light! The officer was in the lane to my right and apparently his driver window was right near my rear bumper. I knew he was there. I even started in 2nd gear instead of 1st to stay at low rpms to be cautious. As soon as the light turned green, I slow rolled and then I saw him dart behind me so I just went into the right lane stopped lol The reason he pulled me over was because he claimed he could smell the fumes through his cracked window. He said it smelled like a monster truck event. (wtf kind of comparison is that?) I knew the fumes were bad but I didn't think they were THAT bad. Anyway he asked me what mods I had. I told him pretty much everything, opened the hood for him, I told him I didn't have cats when he asked me. I'm not going to lie to him because I can get in even more trouble for being a leo myself at my job. So he gave me a fix-it ticket for a smog test but was nice enough to not give me anything else (meaning referee). So basically I have to uninstall them to go to a smog test station then go back to the Chu PD office and get it signed and probably pay $25. GOD I have bad luck with this car!! I am not sure if I want to put them back on at this point after the whole thing with the oil cooler and now this. Man my luck but Chula Vista PD officers have a bad rep for doing everything but fight crime anyway. I'll get an update tomorrow hopefully after we re-intall the stock headers and I can hopfully get it to a place in time. BUT I did update the review

Jamaica · 06-24-2010, 01:56 AM

well..sucks my friend....my buddy cough cough has a smog smog shop cough cough ugh he signed mine of when I had my b22 boosted. Damn the police

Daishi · 06-24-2010, 08:11 AM

That sucks.. Go to jamaicas buddys shop lol. Out of all my cars I've never had a problem with any cops at idle you can barely smell any exhaust fumes. Even from behind the car with minimal throttle you can't smell anything. The thing is hen you first put exhaust parts on the car it will smell funky for a couple days until the oils burn off the exhaust. That may of been what he smelled to be honest.

dlmartin81 · 06-24-2010, 08:57 AM

Daishi - Where in NJ are you? I might be interested in meeting up to hear that beast.

Daishi · 06-24-2010, 09:03 AM

Colts neck. Central nj

Nitex · 06-24-2010, 09:35 AM

Thanks for posting, sucks about the police... Also am i blind? i didnt see anything having to do with a dyno..

RCZ · 06-24-2010, 02:32 PM

Thanks for the review Tard. You should throw up some sound clips.

06-23-2010, 06:40 PM	#16 (permalink)
Cyberium Enthusiast Member Join Date: Mar 2009 Location: Vermont Posts: 379 Drives: 370z Touring \| Sport Rep Power: 16	RASP... AND HISS!?! SIGN ME UP! ...not __________________ Stillen G3 Intakes \| F. I TDX

06-23-2010, 06:42 PM	#17 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	Looking forward to dyno results -- no baseline???? Just to be clear, LTH's will possibly have some low end losses and make most of the gains up top... EDIT: No, no -- other way round -- duh... __________________ Enjoy it. Destroy it. Last edited by Jordo!; 06-24-2010 at 01:58 PM.

06-24-2010, 01:35 AM	#24 (permalink)
TARDCORE Enthusiast Member Join Date: Jul 2009 Location: San Diego Posts: 410 Drives: 2010 Solid Red 370Z Rep Power: 16	Ok I updated the first post. I have the 18'' resonators. I have some bad news unfortunately. I was pulled over by one of the wonderfull chula vista police officers. I wasn't speeding, I wasn't doing any kind of aggressive driving, no peeling out, no reving my engine. I was sitting at a stop light! The officer was in the lane to my right and apparently his driver window was right near my rear bumper. I knew he was there. I even started in 2nd gear instead of 1st to stay at low rpms to be cautious. As soon as the light turned green, I slow rolled and then I saw him dart behind me so I just went into the right lane stopped lol The reason he pulled me over was because he claimed he could smell the fumes through his cracked window. He said it smelled like a monster truck event. (wtf kind of comparison is that?) I knew the fumes were bad but I didn't think they were THAT bad. Anyway he asked me what mods I had. I told him pretty much everything, opened the hood for him, I told him I didn't have cats when he asked me. I'm not going to lie to him because I can get in even more trouble for being a leo myself at my job. So he gave me a fix-it ticket for a smog test but was nice enough to not give me anything else (meaning referee). So basically I have to uninstall them to go to a smog test station then go back to the Chu PD office and get it signed and probably pay $25. GOD I have bad luck with this car!! I am not sure if I want to put them back on at this point after the whole thing with the oil cooler and now this. Man my luck but Chula Vista PD officers have a bad rep for doing everything but fight crime anyway. I'll get an update tomorrow hopefully after we re-intall the stock headers and I can hopfully get it to a place in time. BUT I did update the review __________________ XBL:EVENTYDE

06-24-2010, 08:11 AM	#26 (permalink)
Daishi Track Member Join Date: Jul 2009 Location: NJ Posts: 683 Drives: 09 370z 6Speed Rep Power: 17	That sucks.. Go to jamaicas buddys shop lol. Out of all my cars I've never had a problem with any cops at idle you can barely smell any exhaust fumes. Even from behind the car with minimal throttle you can't smell anything. The thing is hen you first put exhaust parts on the car it will smell funky for a couple days until the oils burn off the exhaust. That may of been what he smelled to be honest. __________________ Cobb Tuned \| Injen Intakes \| Fast Intentions Long Tube Headers \| Fast Intentions TDX Catback 18" Resonators CF Mufflers \| Tommy Kaira Hebi Bebi Shift Knob \| 19x9.5/19x10.5 Five Axis Design S5:F w/ 245/40/19 - 285/35/19 Hankook Ventus V12's

06-24-2010, 08:57 AM	#27 (permalink)
dlmartin81 Track Member Join Date: Dec 2008 Location: Chalfont, PA Age: 43 Posts: 923 Drives: 09 370Z Rep Power: 608	Daishi - Where in NJ are you? I might be interested in meeting up to hear that beast. __________________ Dan F.I. SS CBE 18-R \|\| Llumar 40% tint

06-24-2010, 01:56 AM	#25 (permalink)
Jamaica A True Z Fanatic Join Date: Mar 2010 Location: SoCal Posts: 15,362 Drives: Under boost Rep Power: 73	well..sucks my friend....my buddy cough cough has a smog smog shop cough cough ugh he signed mine of when I had my b22 boosted. Damn the police

06-24-2010, 09:03 AM	#28 (permalink)
Daishi Track Member Join Date: Jul 2009 Location: NJ Posts: 683 Drives: 09 370z 6Speed Rep Power: 17	Colts neck. Central nj __________________ Cobb Tuned \| Injen Intakes \| Fast Intentions Long Tube Headers \| Fast Intentions TDX Catback 18" Resonators CF Mufflers \| Tommy Kaira Hebi Bebi Shift Knob \| 19x9.5/19x10.5 Five Axis Design S5:F w/ 245/40/19 - 285/35/19 Hankook Ventus V12's

06-24-2010, 09:35 AM	#29 (permalink)
Nitex Track Member Join Date: Jan 2010 Location: Seattle Posts: 848 Drives: '13 GTI Stage 2 UNI Rep Power: 16	Thanks for posting, sucks about the police... Also am i blind? i didnt see anything having to do with a dyno.. __________________ 2013 Drivers ED GTI \| Stage 2 Unitronic

06-24-2010, 02:32 PM	#30 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	Thanks for the review Tard. You should throw up some sound clips.

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