Intake, Header, HFC, CBE = Too Lean?

semtex · 04-30-2010, 09:01 AM

Quote:

Originally Posted by Diocletian

He listed he has an Injen CAI, and FI HFC's and CBE in his post. That's making me concerned obviously because I'll have the same mods as him in the next week or two. :/

Edit: Actually I wonder if he dynoed immediately after getting the mods done, because that would definitely skew his numbers.

Oh, sorry I missed that. I was focused on the part that just said Mods: Exhaust. 280 does seem a little low. But keep in mind that this is a 7AT, which might also come into play.

Diocletian · 04-30-2010, 09:07 AM

There isn't that much drivetrain loss on the Auto if any, due to the ratio of the gearing. There are plenty of 7AT's pulling over 300hp+ on similar mods and are basically dead even with the 6 speed.

m4a1mustang · 04-30-2010, 09:09 AM

Keep in mind that some dynos will read very low...

For example... 2theextreme put down 300+ whp on a DynoJet at Altered Atmosphere...

Then with the same mods he couldn't break over 270whp on a Dyno Dynamics at Function Tuned...

Vegitto-kun · 04-30-2010, 09:10 AM

so which one is actually accurate

m4a1mustang · 04-30-2010, 09:11 AM

Quote:

Originally Posted by Vegitto-kun

so which one is actually accurate

That's open to debate.

semtex · 04-30-2010, 09:14 AM

Quote:

Originally Posted by Vegitto-kun

so which one is actually accurate

I don't think there's a definitive answer to that. It's not like there's some gold standard by which one can compare different makes of dynos against. Like think about clocks. The various atomic clocks around the world serve as the standards by which all other clocks are compared against. Is your watch accurate? Compare it against the atomic clock. There is no equivalent to the atomic clock for dynos. All we can do is disclose what type of dyno our numbers came from when we say our cars made xyz HP/TQ. People in the know will understand the significance of the number in relation to the type of dyno. And those who aren't in the know . . . well . . . screw 'em.

m4a1mustang · 04-30-2010, 09:15 AM

Quote:

Originally Posted by semtex

I don't think there's a definitive answer to that. It's not like there's some gold standard by which one can compare different makes of dynos against. Like think about clocks. The various atomic clocks around the world serve as the standards by which all other clocks are compared against. Is your watch accurate? Compare it against the atomic clock. There is no equivalent to the atomic clock for dynos. All we can do is disclose what type of dyno our numbers came from when we say our cars made xyz HP/TQ. People in the know will understand the significance of the number in relation to the type of dyno. And those who aren't in the know . . . well . . . screw 'em.

But we all know if you want "signature" numbers you should find a DynoJet somewhere

semtex · 04-30-2010, 09:16 AM

Quote:

Originally Posted by m4a1mustang

But we all know if you want "signature" numbers you should find a DynoJet somewhere

Or a DynaPak, if you're just after bragging rights. Of course, when people find out your numbers came from a DynaPak they'll laugh at you.

m4a1mustang · 04-30-2010, 09:17 AM

Quote:

Originally Posted by semtex

Or a DynaPak, if you're just after bragging rights. Of course, when people find out your numbers came from a DynaPak they'll laugh at you.

I do need to head up to Altered to get dyno'd... I put down 265.4 on a DynoDynamics with my intakes... I need a bigger number

Vegitto-kun · 04-30-2010, 09:49 AM

I just did a dyno test on a dyno jet

STOCK WITH 1000+ HP

POOOOOOOOOOOOOOOOWER

neveucd · 04-30-2010, 10:19 AM

This was a mustang dyno, which I was told reads lower but is more accurate for real world street condition power, because it measures off of where the load is applied as opposed to inertia on a Dynojet, and because of this the Mustang Dyno read 11 or 12% lower than the Dynojet., and the exhaust is fast intention along with the HFC's. The intake is injen. Other than that nothing else as far as power adders.

Some examples I found

I ran my GS on a Mustang dyno which yielded 284 RWHP. I recently ran it again on a Dynojet and it only mustered 299 RWHP

He dyno'd his 01 Camaro SS on the dynojet and made the typical 310 RWHP. Right after that he strapped it to the Mustang dyno, and made 245 RWHP. 65 HP difference.

I don't know tho, I'm no expert. That is why I estimated 300 rwhp on a Dynojet, since I've been seeing others w/ around same mods, intake, cbe, and hfc or test pipes make 296+.

neveucd · 04-30-2010, 10:23 AM

And no I didn't dyno immediately, I've had everything on for at least 4 months now.

semtex · 04-30-2010, 10:31 AM

I think your estimate of 300whp on a DynoJet is about right. You just forgot to say "on a DynoJet" in your original post, which is why I was confused.

neveucd · 04-30-2010, 10:54 AM

Oh ok, damn I wanted your headers actually, but I see you just pulled the trigger on a sale....sad day

. I don't know if I want to bother selling my hfc's and waiting the long wait for LTH's.

semtex · 04-30-2010, 10:56 AM

Quote:

Originally Posted by neveucd

Oh ok, damn I wanted your headers actually, but I see you just pulled the trigger on a sale....sad day

. I don't know if I want to bother selling my hfc's and waiting the long wait for LTH's.

Another member has a set for sale. He was holding off until mine were sold as a courtesy to me. I will send you both PM to put you in touch with each other.

04-30-2010, 09:07 AM	#152 (permalink)
Diocletian Enthusiast Member Join Date: Mar 2010 Location: Orlando, Fl Posts: 350 Drives: 09 370z CY A7 Rep Power: 15	There isn't that much drivetrain loss on the Auto if any, due to the ratio of the gearing. There are plenty of 7AT's pulling over 300hp+ on similar mods and are basically dead even with the 6 speed. __________________ Injen Dual CAI \| Illuminated Kick plates \| Stillen Sway bar kit \| F.I TDX w/ 12" Resonators \| F.I HFC's \| UpRev Tune \| 300HP/225tq Mustang Dyno

04-30-2010, 09:09 AM	#153 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	Keep in mind that some dynos will read very low... For example... 2theextreme put down 300+ whp on a DynoJet at Altered Atmosphere... Then with the same mods he couldn't break over 270whp on a Dyno Dynamics at Function Tuned... __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

04-30-2010, 10:19 AM	#161 (permalink)
neveucd Enthusiast Member Join Date: Oct 2009 Location: Houston, TX. Age: 40 Posts: 457 Drives: 2009 Nissan 370z TT Rep Power: 16	This was a mustang dyno, which I was told reads lower but is more accurate for real world street condition power, because it measures off of where the load is applied as opposed to inertia on a Dynojet, and because of this the Mustang Dyno read 11 or 12% lower than the Dynojet., and the exhaust is fast intention along with the HFC's. The intake is injen. Other than that nothing else as far as power adders. Some examples I found I ran my GS on a Mustang dyno which yielded 284 RWHP. I recently ran it again on a Dynojet and it only mustered 299 RWHP He dyno'd his 01 Camaro SS on the dynojet and made the typical 310 RWHP. Right after that he strapped it to the Mustang dyno, and made 245 RWHP. 65 HP difference. I don't know tho, I'm no expert. That is why I estimated 300 rwhp on a Dynojet, since I've been seeing others w/ around same mods, intake, cbe, and hfc or test pipes make 296+. __________________ GTM Stg. 2 TT\|\|F.I. CF 18" Res. CBE\|\|GTM 3" Downpipe \|\|Injen Cold Water Intakes\|\|UpRev\|\|Work Gnosis GS2\|\|Hankook\|\|Tein Monoflex\|\|Hawk\|\|Seibon\|\|Aero Jacket\|\| Last edited by neveucd; 04-30-2010 at 10:24 AM.

04-30-2010, 10:23 AM	#162 (permalink)
neveucd Enthusiast Member Join Date: Oct 2009 Location: Houston, TX. Age: 40 Posts: 457 Drives: 2009 Nissan 370z TT Rep Power: 16	And no I didn't dyno immediately, I've had everything on for at least 4 months now. __________________ GTM Stg. 2 TT\|\|F.I. CF 18" Res. CBE\|\|GTM 3" Downpipe \|\|Injen Cold Water Intakes\|\|UpRev\|\|Work Gnosis GS2\|\|Hankook\|\|Tein Monoflex\|\|Hawk\|\|Seibon\|\|Aero Jacket\|\|

04-30-2010, 10:31 AM	#163 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 54 Posts: 5,995 Drives: People to drink Rep Power: 32	I think your estimate of 300whp on a DynoJet is about right. You just forgot to say "on a DynoJet" in your original post, which is why I was confused. __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

04-30-2010, 09:10 AM	#154 (permalink)
Vegitto-kun A True Z Fanatic Join Date: Feb 2010 Location: USA Posts: 2,011 Drives: 09 370Z Rep Power: 262	so which one is actually accurate

04-30-2010, 09:49 AM	#160 (permalink)
Vegitto-kun A True Z Fanatic Join Date: Feb 2010 Location: USA Posts: 2,011 Drives: 09 370Z Rep Power: 262	I just did a dyno test on a dyno jet STOCK WITH 1000+ HP POOOOOOOOOOOOOOOOWER

04-30-2010, 10:54 AM	#164 (permalink)
neveucd Enthusiast Member Join Date: Oct 2009 Location: Houston, TX. Age: 40 Posts: 457 Drives: 2009 Nissan 370z TT Rep Power: 16	Oh ok, damn I wanted your headers actually, but I see you just pulled the trigger on a sale....sad day . I don't know if I want to bother selling my hfc's and waiting the long wait for LTH's. __________________ GTM Stg. 2 TT\|\|F.I. CF 18" Res. CBE\|\|GTM 3" Downpipe \|\|Injen Cold Water Intakes\|\|UpRev\|\|Work Gnosis GS2\|\|Hankook\|\|Tein Monoflex\|\|Hawk\|\|Seibon\|\|Aero Jacket\|\|

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