CAMARO6 - View Single Post - PRAY ported intake and TB dyno results. 17/16rw.

PRAY · 10-21-2016, 07:28 PM

I got my bone stock car on the dyno today. The Roto-fab didn't make it so I didn't get a chance to test it. I won't mention the company I ordered it from cause they are great guys but an honest goof up was made and the CAI was shipped to them from them. The funny part is it took a week to get back. So I just went to the dyno anyway. NBD

This is going to be a long post so for the non readers. I gained 17/16rw over my tuned stock intake and TB. The gains were from hit to quit. I only go a 100rpm or so if that, of rpm extension.

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The long and short of it till I can get the graphs up is that this car is a trip from the factory. I dynoed it a couple weeks ago when it was warmer and it put down 381/391rw. But the fuel was 12.0-2 and it was pulling 3+ degrees of timing. Then today I made three base line pulls and it put down 393/413rw. The fuel this time was 12.8-9 and it only pulled .5* of timing in a couple places and averaged 24.5*. Both of these runs were on the bone stock car and tune corrected to SAE and smoothed to 5 on the same dyno. Only the weather was better today.

I started tuning with no hope of any gains. I was able to get to 401/417rw which is pretty darn good considering I have really no fuel and timing to play with. I then swapped the intake and TB on the dyno and let it rip. The first run was 417/435rw and the second run was 418/433rw. The best part, NO TUNING CHANGES. None. I didn't gain another hp with about 5 attempts to get more power out of it. Car just stayed within a hp/tq or two of the first runs. The TB is working great as well. No issues what so ever.

Now some data. I tried AFR From 12.6 to 13.2 and timing from 23*-28*. The 28* was not my intention. It seems that as soon as the stock tune saw KR it switched to the Low Octane table that averages around 24.5*. When I put my tune in I copied the STOCK High Octane timing table to the Low Octane table and let it rip. 28* is what I got. Once that was corrected and I got rid of 99% of the KR there really wasn't much to be had over the stock tune TODAY. I settled on 12.8ish and 24-25* of timing. I didn't keep pushing it down low even though it was taking it. I wasn't getting good hp returns for the risk of timing. I don't know what I would have gained if I would have tuned the car when I first dynoed it in the warmer weather. I am sure I would have ended up where I did today which would have made the tune worth 20rw, not the 8rw I got.

My DynCyl went up from .84 as the high at peak tq to .89 on the dyno today. On some street tuning on the way home I hit .91 where as at the track last Sunday I only hit .84. I averaged about .3-4 DynCyl for the entire curves and runs. My MAP KPA also went up from 93-94 KPA at the lowest to 95-96 at the lowest. The MAF went up about 100hz on average. These are rough quick looks at my logs. I will have to go through them when I have time later.

So it seems that maybe the ported stock stuff isn't so bad. I really wish I would have had the Roto-fab to finish up the dyno session today. I have a feeling I am going to see some good gains with it. I don't think 13rw or so would be out of the question now that the TB/Intake are not restrictions anymore. So in total I gained 25/20rw or 37/32rw depending on which base line you want to start with today with keeping the car looking bone stock. I am taking it to the track Sunday so we will see what I can get the car to run.

10-21-2016, 07:28 PM	#1
PRAY Drives: 2016 2SS Join Date: Jul 2016 Location: Sanford NC Posts: 2,766	PRAY ported intake and TB dyno results. 17/16rw. I got my bone stock car on the dyno today. The Roto-fab didn't make it so I didn't get a chance to test it. I won't mention the company I ordered it from cause they are great guys but an honest goof up was made and the CAI was shipped to them from them. The funny part is it took a week to get back. So I just went to the dyno anyway. NBD This is going to be a long post so for the non readers. I gained 17/16rw over my tuned stock intake and TB. The gains were from hit to quit. I only go a 100rpm or so if that, of rpm extension. http://s39.photobucket.com/user/05LegacyGT/media/Mobile%20Uploads/20161021_173210_zpsmqwdicnr.jpg.html][/URL] http://s39.photobucket.com/user/05LegacyGT/media/Mobile%20Uploads/20161021_173154_zpslawa7h3j.jpg.html][/URL] The long and short of it till I can get the graphs up is that this car is a trip from the factory. I dynoed it a couple weeks ago when it was warmer and it put down 381/391rw. But the fuel was 12.0-2 and it was pulling 3+ degrees of timing. Then today I made three base line pulls and it put down 393/413rw. The fuel this time was 12.8-9 and it only pulled .5* of timing in a couple places and averaged 24.5. Both of these runs were on the bone stock car and tune corrected to SAE and smoothed to 5 on the same dyno. Only the weather was better today. I started tuning with no hope of any gains. I was able to get to 401/417rw which is pretty darn good considering I have really no fuel and timing to play with. I then swapped the intake and TB on the dyno and let it rip. The first run was 417/435rw and the second run was 418/433rw. The best part, NO TUNING CHANGES. None. I didn't gain another hp with about 5 attempts to get more power out of it. Car just stayed within a hp/tq or two of the first runs. The TB is working great as well. No issues what so ever. Now some data. I tried AFR From 12.6 to 13.2 and timing from 23-28. The 28 was not my intention. It seems that as soon as the stock tune saw KR it switched to the Low Octane table that averages around 24.5. When I put my tune in I copied the STOCK High Octane timing table to the Low Octane table and let it rip. 28 is what I got. Once that was corrected and I got rid of 99% of the KR there really wasn't much to be had over the stock tune TODAY. I settled on 12.8ish and 24-25* of timing. I didn't keep pushing it down low even though it was taking it. I wasn't getting good hp returns for the risk of timing. I don't know what I would have gained if I would have tuned the car when I first dynoed it in the warmer weather. I am sure I would have ended up where I did today which would have made the tune worth 20rw, not the 8rw I got. My DynCyl went up from .84 as the high at peak tq to .89 on the dyno today. On some street tuning on the way home I hit .91 where as at the track last Sunday I only hit .84. I averaged about .3-4 DynCyl for the entire curves and runs. My MAP KPA also went up from 93-94 KPA at the lowest to 95-96 at the lowest. The MAF went up about 100hz on average. These are rough quick looks at my logs. I will have to go through them when I have time later. So it seems that maybe the ported stock stuff isn't so bad. I really wish I would have had the Roto-fab to finish up the dyno session today. I have a feeling I am going to see some good gains with it. I don't think 13rw or so would be out of the question now that the TB/Intake are not restrictions anymore. So in total I gained 25/20rw or 37/32rw depending on which base line you want to start with today with keeping the car looking bone stock. I am taking it to the track Sunday so we will see what I can get the car to run. __________________ 2016 2SS. H/C SBE 1.37 60ft, 6.36@109.49, 9.97@136+. Nuff Said. Last edited by PRAY; 10-22-2016 at 06:09 AM.