Flowmaster Cat Back and a Haibeck chip - ZR-1 Net Registry Forums

We Gone · 03-10-2007

Well just got in from the Dyno...

Dyno 1 11/02 18K miles bone stock 324.1rwhp

Dyno 2 3/10 43K miles flowmaster catback and Marc Haibeck Chip 339.1rwhp...346.5 torque...

Peaven · 03-10-2007

Quote:

Originally Posted by We Gone

Well just got in from the Dyno...

Dyno 1 11/02 18K miles bone stock 324.1rwhp

Dyno 2 3/10 43K miles flowmaster catback and Marc Haibeck Chip 339.1rwhp...346.5 torque...

=D> That's a nice gain for chip & exhaust, congrats.

Hammer · 03-10-2007

Quote:

Originally Posted by We Gone

Well just got in from the Dyno...

Dyno 1 11/02 18K miles bone stock 324.1rwhp

Dyno 2 3/10 43K miles flowmaster catback and Marc Haibeck Chip 339.1rwhp...346.5 torque...

Not quite what we were expecting (20 to 22 HP), Marc says his chip picks up 10 HP and 10 TQ. If that's the case, the Flowmasters picked up only 5 HP. Expensive ones too.

Do you have the dyno sheets available for posting? It would be interesting to see the difference between the two. Are the two runs corrected equally so they are comparable?

Thanks for posting. What are your thoughts?

1990 quasar blue · 03-10-2007

Remember, peak numbers alone don't mean much. Marc says "around" ten so maybe the chip only added 7 at peak but, it may have added 15 or more elsewhere. What I would also like to see are the torque numbers from before as I assume that they were close to the HP numbers. If so, then that's a nice gain. Another good comparison would be how much the power falls off up top now as to before. I would rather gain 20 hp every where and only 10 at peak instead of 20 at peak and only 10 everywhere else. JMHO.

We Gone · 03-10-2007

I have them not sure of how to post them.I f you drop me a PM with a fax # I will fax them to ya on Monday.

The first one from 11/2 was done @ SGC on a Dynojet and does not list torque it also is listed as HP & MPH..

The two pulls today were done @ Vengeanec Raicing on a Dynojet also, it lists HP & RPMs.

and yes I was looking for a 20hp gain also.

Not sure of how good the dyno was as both runs are missing some of the graph lines?? Guess I can't complain as it was free... I sure someone who know how to read them could tell more than I can...

1990 quasar blue · 03-10-2007

WEGONE, here you go.

Hammer · 03-10-2007

You really need a torque curve to see whats happening. Air/Fuel ratio is needed also, that way you can tell if you're (the engine) is fat or lean. You have got a great tq curve Steve. It comes up quick and stays there for a long time. Your car should scoot.

I would say that given the variations between Dynos there has definitely been an improvement.

We Gone · 03-10-2007

Mike,

Thanks for posting the graphs for me..was great talking with ya.

John,

it pulls good and I'm happy with the gains..When I have the time again I'll have to get down to SGC and have a good dyno run with A/F.. I did not see this before but the run at SGC is STD and the new one is SAE..

jonszr1 · 03-11-2007

You might give the guys at the dyno shop a call and ask for the sheets that show the air fuel. do you remember if they put something in your exhaust pipe @the rear of the car? if they did then they should have the air fuel if they keep any kind of records . what you would like to see is 12.7 12.8. youcould then send the sheets to mark and he could adjust your fuel if need be. he did that for me once i believe he chged me 50 to do that. well worth it .

tpepmeie · 03-11-2007

Notice the SGC dyno was corrected to STD, the recent run was corrected to SAE. The Dynojet STD correction is normally around 2.5% higher than SAE J1349 standards.

I would suggest your baseline was more like 316 rwhp (SAE), thus the gains more like 23 rwhp. The Flows are probably responsible for about 1/2 of that.

Todd

03-10-2007	#1
We Gone Join Date: Apr 2004 Location: ATL. GA. Posts: 2,170	Flowmaster Cat Back and a Haibeck chip Well just got in from the Dyno... Dyno 1 11/02 18K miles bone stock 324.1rwhp Dyno 2 3/10 43K miles flowmaster catback and Marc Haibeck Chip 339.1rwhp...346.5 torque... __________________ Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold

03-10-2007	#4
1990 quasar blue Join Date: Feb 2004 Location: Ma Posts: 404	Re: Flowmaster Cat Back and a Haibeck chip Remember, peak numbers alone don't mean much. Marc says "around" ten so maybe the chip only added 7 at peak but, it may have added 15 or more elsewhere. What I would also like to see are the torque numbers from before as I assume that they were close to the HP numbers. If so, then that's a nice gain. Another good comparison would be how much the power falls off up top now as to before. I would rather gain 20 hp every where and only 10 at peak instead of 20 at peak and only 10 everywhere else. JMHO. __________________ 1990 ZR1 #2574 Medium Quasar Blue Metallic 1 of 19

03-10-2007	#5
We Gone Join Date: Apr 2004 Location: ATL. GA. Posts: 2,170	Re: Flowmaster Cat Back and a Haibeck chip I have them not sure of how to post them.I f you drop me a PM with a fax # I will fax them to ya on Monday. The first one from 11/2 was done @ SGC on a Dynojet and does not list torque it also is listed as HP & MPH.. The two pulls today were done @ Vengeanec Raicing on a Dynojet also, it lists HP & RPMs. and yes I was looking for a 20hp gain also. Not sure of how good the dyno was as both runs are missing some of the graph lines?? Guess I can't complain as it was free... I sure someone who know how to read them could tell more than I can... __________________ Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold Last edited by We Gone; 03-10-2007 at 09:17 PM.

03-10-2007	#6
1990 quasar blue Join Date: Feb 2004 Location: Ma Posts: 404	Re: Flowmaster Cat Back and a Haibeck chip WEGONE, here you go. __________________ 1990 ZR1 #2574 Medium Quasar Blue Metallic 1 of 19

03-10-2007	#7
Hammer Join Date: Apr 2006 Location: Ideho Posts: 2,653	Re: Flowmaster Cat Back and a Haibeck chip You really need a torque curve to see whats happening. Air/Fuel ratio is needed also, that way you can tell if you're (the engine) is fat or lean. You have got a great tq curve Steve. It comes up quick and stays there for a long time. Your car should scoot. I would say that given the variations between Dynos there has definitely been an improvement. __________________ [I][FONT=Comic Sans MS]John Boyd[/FONT][/I] [I][FONT=Comic Sans MS][SIZE=1]Ideho[/SIZE][/FONT][/I] [FONT=Comic Sans MS][SIZE=1][I]2015 ZL1 [/I][I]Camaro #1121 BLACK/BLACK 6 SPD (540 RWHP)[/I][/SIZE][/FONT] [I][FONT=Comic Sans MS][SIZE=1]1991 ZR-1 #458 [COLOR=red]RED/[/COLOR][COLOR=black]BLACK 72[/COLOR]k miles ([B][COLOR=red]SOLD[/COLOR][/B]) 1991 ZR-1 #473 [COLOR=red]RED/[/COLOR][COLOR=black]BLACK [/COLOR]37k miles ([B][COLOR=red]SOLD[/COLOR][/B])[/SIZE][/FONT][/I]

03-11-2007	#9
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,407	Re: Flowmaster Cat Back and a Haibeck chip You might give the guys at the dyno shop a call and ask for the sheets that show the air fuel. do you remember if they put something in your exhaust pipe @the rear of the car? if they did then they should have the air fuel if they keep any kind of records . what you would like to see is 12.7 12.8. youcould then send the sheets to mark and he could adjust your fuel if need be. he did that for me once i believe he chged me 50 to do that. well worth it .

03-11-2007	#10
tpepmeie Join Date: Aug 2005 Location: Fishers, IN Posts: 815	Re: Flowmaster Cat Back and a Haibeck chip Notice the SGC dyno was corrected to STD, the recent run was corrected to SAE. The Dynojet STD correction is normally around 2.5% higher than SAE J1349 standards. I would suggest your baseline was more like 316 rwhp (SAE), thus the gains more like 23 rwhp. The Flows are probably responsible for about 1/2 of that. Todd