Fast Intentions exhaust and header comparison. Before and after UPRev tune (Dyno)

theDreamer · 03-26-2010, 10:15 AM

Quote:

Originally Posted by G37Sam

Tony I have a feeling with 93 octane I could see better gains after the tune?

Maybe, I hope to put this theory to the test with positive results hopefully.

G37Sam · 03-26-2010, 10:23 AM

I mean I know Nissan did a great job with the OEM headers, but I'm sure Tony did a much better one, those numbers don't do it justice IMO

XwChriswX · 03-26-2010, 10:26 AM

Is there a MASSIVE difference between these two setups?

Stillen Headers --> FI Resonated Test Pipes --> FI CBE

FI LTH's --> FI CBE

Just wondering where the primary difference between a short tube/long tube header lies... Can you explain this to boost my knowlege on headers?

theDreamer · 03-26-2010, 10:42 AM

Sam, is your fuel over there (93 octane) really good, meaning no additives like they do in the US (that 10% sh*t stuff)?

XwChriswX · 03-26-2010, 10:51 AM

Quote:

Originally Posted by theDreamer

Sam, is your fuel over there (93 octane) really good, meaning no additives like they do in the US (that 10% sh*t stuff)?

I would think they would have the best gas there in Dubai...

I mean the wells are right up the street arent they in Saudi?

semtex · 03-26-2010, 11:00 AM

Quote:

Originally Posted by XwChriswX

I would think they would have the best gas there in Dubai...

I mean the wells are right up the street arent they in Saudi?

Yeah but where are the refineries? All the crude in the world won't do you much good unless you have a refinery.

XwChriswX · 03-26-2010, 11:02 AM

Quote:

Originally Posted by semtex

Yeah but where are the refineries? All the crude in the world won't do you much good unless you have a refinery.

Touche'.

Semtex just

me.

semtex · 03-26-2010, 11:54 AM

Quote:

Originally Posted by XwChriswX

Touche'.

Semtex just

me.

Sorry bud, that wasn't my intent. I was just making an observation.

theDreamer · 03-27-2010, 02:13 PM

Almost done making the first set Tony?

F.I. Inc. · 03-27-2010, 02:16 PM

Quote:

Originally Posted by theDreamer

Almost done making the first set Tony?

Check the LTH thread in about two minutes my friend!!!

theDreamer · 03-27-2010, 02:16 PM

Quote:

Originally Posted by F.I. Inc.

Check the LTH thread in about two minutes my friend!!!

chuckd05 · 03-29-2010, 09:20 PM

I am late to this party, and I am on this list and intend on purchasing these asap. But a shop by me picks up power and torque in almost every single uprev tune they do... sometimes as much as 15hp...

On the graph it claims the tune made no power ... isn't that hard to believe.. so the increase in the dyno posted in LTH and tune... solid gain, but nothing earth shattering at all..

most times a tune will give you power across the entire band as well... kinda disappointing to me , but what do I know.. I'm still down for them and will post my before and after as well... I will have uprev tune done tomorrow and I plan on posting my before/after and impressions... I will than go back to same shop to install these headers and touch up my tune... I am sure time will show plenty more dynos but that kinda leaves me with a little more to desire with those gains being LTH and tune

theDreamer · 03-29-2010, 09:23 PM

Quote:

Originally Posted by chuckd05

I am late to this party, and I am on this list and intend on purchasing these asap. But a shop by me picks up power and toruque in almost every single uprev tune they do... sometimes as much as 15hp...

On the graph it claims the tune made no power ... isnt that hard to believe.. so the increse in the dyno posted in LTH and tune... solid gain, but nothing earth shattering at all..

most times a tune will give you power across the entire band as well... kinda disapointing to me , but what do I know.. Im still down for them and will post my before and after as well... I will have uprev tune done tomorrow and I plan on posting my before/after and impressions... I will than go back to same shop to install these headers and touch up my tune... I am sure time will show plenty more dynos but that kinda leaves me with a little more to desire with those gains being LTH and tune

You are looking at peak numbers, look at the whole graph and then come back. You might see a rather large gap between the lines.

chuckd05 · 03-29-2010, 09:34 PM

Quote:

Originally Posted by theDreamer

You are looking at peak numbers, look at the whole graph and then come back. You might see a rather large gap between the lines.

Yes of coarse I am looking at the whole graph. Wwhat I am saying is on that dyno sheet Tony says the tune picked up no gains... only cleaned up a/f

I find that extremely hard to believe as I have seen with my own eyes 5-6 dyno sheets after an uprev tune where there was power made through out the entire RPM band on a car that came in with full bolt ons and some just TP/Intake ... No, not as much as posted here, but in some circumstances 15hp was gained around the same RPM as this dyno with just a tune on a car with injen cai, berk tp, greddy exhaust...

It seems as if he is saying the tune gave ZERO hp and ZERO tq and I find that very hard to believe.

This is a thread about a COBB tune, which in essense is the same thing as uprev as it just allows you to tweak the a/f and timing.. the gains are really good, and yes I know others have seen no gains from tunes, Im just posting this as a reference, take it for what ever its worth to you..

Cobb Tuned @ Altered Atmosphere – Awesome Gains!

F.I. Inc. · 03-29-2010, 09:46 PM

Quote:

Originally Posted by chuckd05

Yes of coarse I am looking at the whole graph. Wwhat I am saying is on that dyno sheet Tony says the tune picked up no gains... only cleaned up a/f

I find that extremely hard to believe as I have seen with my own eyes 5-6 dyno sheets after an uprev tune where there was power made through out the entire RPM band on a car that came in with full bolt ons and some just TP/Intake ... No, not as much as posted here, but in some circumstances 15hp was gained around the same RPM as this dyno with just a tune on a car with injen cai, berk tp, greddy exhaust...

It seems as if he is saying the tune gave ZERO hp and ZERO tq and I find that very hard to believe.

I hope that you are right about the tune. Personally I was more impressed with the outcome from the car we tested in December with no intakes and no tune. A number of factors could be why the tune did nothing. After it was all said and done we added 100 octane race fuel in and tried to bump the timing. The ECU still kicked it back and did an override.

I have no doubt the headers work and you will all love them! I want to get a litlle more in depth in the tune next time because I feel like there is room for improvement. I can tell you this though, I am throughly convinced that the aftermarket long tube CAI's hurt the torque and power throughout the entire curve. Regardless of what anyones says. At this point I have dynoed enough different 370's with the same outcome.

Thanks, Tony

03-26-2010, 10:23 AM	#2 (permalink)
G37Sam A True Z Fanatic Join Date: Dec 2008 Location: Dubai, UAE Posts: 1,507 Drives: RB'd G37 Rep Power: 22	I mean I know Nissan did a great job with the OEM headers, but I'm sure Tony did a much better one, those numbers don't do it justice IMO __________________ '14 Viper GTS '08 RB'd G37S - Sold

03-26-2010, 10:26 AM	#3 (permalink)
XwChriswX WFLYIDNNE Join Date: Jul 2009 Location: In The Fastlane Posts: 50,648 Drives: 02 GDB WRX Rep Power: 453	Is there a MASSIVE difference between these two setups? Stillen Headers --> FI Resonated Test Pipes --> FI CBE FI LTH's --> FI CBE Just wondering where the primary difference between a short tube/long tube header lies... Can you explain this to boost my knowlege on headers? __________________ Bonnie - Stage 2, Audio build coming this fall! R.I.P. Abby 3/29/10 - 3/30/14

03-26-2010, 10:42 AM	#4 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4212	Sam, is your fuel over there (93 octane) really good, meaning no additives like they do in the US (that 10% sh*t stuff)? __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

03-27-2010, 02:13 PM	#9 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4212	Almost done making the first set Tony? __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

03-29-2010, 09:20 PM	#12 (permalink)
chuckd05 A True Z Fanatic Join Date: Oct 2009 Location: NY Posts: 2,391 Drives: No longer a Z Rep Power: 21	I am late to this party, and I am on this list and intend on purchasing these asap. But a shop by me picks up power and torque in almost every single uprev tune they do... sometimes as much as 15hp... On the graph it claims the tune made no power ... isn't that hard to believe.. so the increase in the dyno posted in LTH and tune... solid gain, but nothing earth shattering at all.. most times a tune will give you power across the entire band as well... kinda disappointing to me , but what do I know.. I'm still down for them and will post my before and after as well... I will have uprev tune done tomorrow and I plan on posting my before/after and impressions... I will than go back to same shop to install these headers and touch up my tune... I am sure time will show plenty more dynos but that kinda leaves me with a little more to desire with those gains being LTH and tune __________________ 09 370Z 6M PW - FBO Best 1/4 mile = 12.926 @ 109 SOLD -- 08 BMW 135i - FBO 12.1@120mph SOLD -- white 09 e92 335 Coupe Mtech - 11.9 @ 119 :-) Last edited by chuckd05; 03-29-2010 at 09:36 PM.

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