Do my Dyno Numbers look right??
Thread Starter
Pro
Joined: Mar 2001
Posts: 568
Likes: 1
From: South Florida
Do my Dyno Numbers look right??
I finally got around to get to a shop that has a Dynojet 248C dyno and ran my car. The temperature was very hot and humid inside the shop. The dyno printout sheet says 99.7 degrees F and my IAT was aprox 100-105 during the entire run. I autotapped the runs and I am getting some mild KR at aprox 5500-6000 RPM's of 1.5deg with my 02's at 915mv. The shop did not have their wide band 02 available but said to come back next week and they will let me have another few runs for free...
Max power is 360.8 Hp @ 6100 RPM
Max Torque is 352.2 @ 5000 RPM
The car is a 99 Hardtop with the mods listed below. The exhaust system is totally stock including the factory manifolds and stock cats. Do these numbers look correct and do you think I would gain much by going with the TI Z-06 cat back or another type exhaust system?? Do these numbers look right for the mods listed??
[Modified by BlkFRC, 6:33 PM 5/23/2003]
[Modified by BlkFRC, 8:42 PM 5/23/2003]
Max power is 360.8 Hp @ 6100 RPM
Max Torque is 352.2 @ 5000 RPM
The car is a 99 Hardtop with the mods listed below. The exhaust system is totally stock including the factory manifolds and stock cats. Do these numbers look correct and do you think I would gain much by going with the TI Z-06 cat back or another type exhaust system?? Do these numbers look right for the mods listed??
[Modified by BlkFRC, 6:33 PM 5/23/2003]
[Modified by BlkFRC, 8:42 PM 5/23/2003]
Melting Slicks
Joined: Sep 1999
Posts: 2,521
Likes: 0
From: Houston, TX
Re: Do my Dyno Numbers look right?? (BlkFRC)
The numbers do seem low but the graph is nice and smooth...the tuning can't be too far off. Too bad the 02 aquisition wasn't running. That would've helped. The numbers are corrected for the conditions of the day tho.
The stock exhaust system has to be killing the potential of your combination since there is no intake-to-exhaust flow balance. The change to a Z06 Ti will only be worth about ~5 Rw from what I have seen. They do sound nice tho. FYI, an MTI Stg.II H/C Z picked up only 5 Rw when he changed from the stock Ti to a Corsa Indy catback so if you're looking for the most performance you might consider going aftermarket. A full exhaust system would be the way to go when you can go that route....then have the A:F checked and add some tuning. The results will be much different.
:cheers:
The stock exhaust system has to be killing the potential of your combination since there is no intake-to-exhaust flow balance. The change to a Z06 Ti will only be worth about ~5 Rw from what I have seen. They do sound nice tho. FYI, an MTI Stg.II H/C Z picked up only 5 Rw when he changed from the stock Ti to a Corsa Indy catback so if you're looking for the most performance you might consider going aftermarket. A full exhaust system would be the way to go when you can go that route....then have the A:F checked and add some tuning. The results will be much different.
:cheers:
Burning Brakes
Joined: Apr 2002
Posts: 1,081
Likes: 0
From: Mississauga ONTARIO
Re: Do my Dyno Numbers look right?? (BlkFRC)
i wouldnt expect a huge gain out of a cat-back setup.... TiZO6 or any other after market exhaust for that matter... they are basically for looks and sound, IMO
but i think with some Long Tube headers, it might be worth your while.
but i think with some Long Tube headers, it might be worth your while.
Thread Starter
Pro
Joined: Mar 2001
Posts: 568
Likes: 1
From: South Florida
Re: Do my Dyno Numbers look right?? (BRADS C5)
Thanks guys for your comments.. I think I am going to go with some LT headers but I still want to keep the car emission legal and retain the cats. Hopefully with the addition of the headers and the TI exhaust, I will pick up some gains!! Any idea how much I will pick up in torque & HP with some LT's??
Does the fact that I am running a 3.73 differential make much of a difference in the numbers compared to the original 3:42??
Hello Brad... I hope everything is going well with you.. I was over at LR just the other day... I think a new less restrictive exhaust is now in order for me.. Next time we meet up, I've got some pretty cool stuff to tell you about a new shop that is going to be opening up in our area!! BTW, love those wheels and interior on your vette!!
[Modified by BlkFRC, 11:38 PM 5/23/2003]
Does the fact that I am running a 3.73 differential make much of a difference in the numbers compared to the original 3:42??
Hello Brad... I hope everything is going well with you.. I was over at LR just the other day... I think a new less restrictive exhaust is now in order for me.. Next time we meet up, I've got some pretty cool stuff to tell you about a new shop that is going to be opening up in our area!! BTW, love those wheels and interior on your vette!!
[Modified by BlkFRC, 11:38 PM 5/23/2003]
Race Director
Joined: Aug 1999
Posts: 15,466
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From: GARDENA Ca, State Of Konfusion
St. Jude Donor '05
Re: Do my Dyno Numbers look right?? (BlkFRC)
When I installed the 3.73's and the ST-3500, my rwhp number dropped by 10! I have gotten many explanations, but since the car is faster, I can't complain.
