Re-dyno'd my afr205 head/cam after milling
02-12-2006, 12:55 AM
#21
Originally Posted by MSGHUFF
mods are in my signature. The power comes on pretty early to me? I shift at the track~6600 I dont really consider that high...With my 3:90's and this setup its got power at every RPM!
02-12-2006, 05:13 PM
#22
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Made one pass today before I blew my output shaft(I hope...)
old times were 11.72@ 121 1.75 60ft
new time 11.54@123 1.80 60ft
The case looks like its intact no fluid leaking, jacked it up and when I spin either rear tire the other doesnt move no noise in the rear when either is turned and when the car is in gear nothing....... I might rip it out tonight but not real motivated.......~150 track passes so I knew it would happen soon....Damn I sould have opted for the hardened output shafts the first time!
old times were 11.72@ 121 1.75 60ft
new time 11.54@123 1.80 60ft
The case looks like its intact no fluid leaking, jacked it up and when I spin either rear tire the other doesnt move no noise in the rear when either is turned and when the car is in gear nothing....... I might rip it out tonight but not real motivated.......~150 track passes so I knew it would happen soon....Damn I sould have opted for the hardened output shafts the first time!
02-16-2006, 08:47 AM
#25
Originally Posted by Slowhawk
Very nice 
Do the 90/90 setup and you'll gain some more. Also by my testing the AFR setup sometimes like's A/F at 13.5-1 to 14-1 to get the most out of it.
Do the 90/90 setup and you'll gain some more. Also by my testing the AFR setup sometimes like's A/F at 13.5-1 to 14-1 to get the most out of it.
02-16-2006, 07:39 PM
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Originally Posted by Slowhawk
Very nice
Do the 90/90 setup and you'll gain some more. Also by my testing the AFR setup sometimes like's A/F at 13.5-1 to 14-1 to get the most out of it.
Do the 90/90 setup and you'll gain some more. Also by my testing the AFR setup sometimes like's A/F at 13.5-1 to 14-1 to get the most out of it.
I still have a lot of tuning to do and am waiting to see the results of my friends 90/90 combo but hope to have one in the next few months. I am sure I can get a 11.1 or 11.2 out the way it sits now
02-16-2006, 09:36 PM
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Nice numbers... and good comparison. For what it is worth I lost 10 HP going to a 90/90 setup (from a 78mm and ported stock tb). I have checked just about everything on the motor to make sure it wasn't something else and have not found anything... might be something else but we have not found it yet. I am going to try a ls6 intake next just chits....
For what it is worth I lost 10 HP going to a 90/90 setup (from a 78mm and ported stock tb). I have checked just about everything on the motor to make sure it wasn't something else and have not found anything... might be something else but we have not found it yet. I am going to try a ls6 intake next just chits.... 
02-25-2006, 11:22 AM
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Originally Posted by Billiumss
Nice numbers!!!
Exactly how did you check your pushrod length? Just wondering how "you" did it.
Bill
Exactly how did you check your pushrod length? Just wondering how "you" did it.
Bill
02-25-2006, 10:58 PM
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Originally Posted by Billiumss
Did you have to use a solid roller lifter to get your numbers? What length pushrod are you running with that set up?
Bill
Bill
05-27-2006, 08:57 PM
#34
Originally Posted by MSGHUFF
Well I finally got everything back together on my 99 vette and tuned...this is what I did:
-replaced the TR224/224 .563/563 114lsa with the "Mamo cam" 224/228 .581/588 114 lsa
-installed the TSP ported ls6 oil pump
-LS2 timing chain
-milled my AFR 205 heads .030
-04 LS6 MAF
-installed Cometic .040 gaskets
-replaced the stock 26lbs injectors with some 28.8's
I used the same Dyno (Carolina Auto Masters) with nearly identical conditions
before#'s
408rwhp/396rwtq
After:
440rwhp/418rwtq
sorry for the poor picture I'll try to fix it later
A few notes and impressions:
-my oil pressure is a steady10-15lbs more than the stock pump
-this doesn’t show on the dyno but off idle and around the cruising rpm's there is a huge gain in power over my old setup.
-idle is exactly the same as the TR224 maybe even a slight bit better?
-After an hour drive I immediately strapped it on the dyno and it pulled 432/405 before tuning. The MAF and injectors gained~4 they were dyno'd and tuned after everything else
-this time I measured the pushrod length and setting up the valve train properly and it is a lot quieter over my previous set-up
Some additional tweaking and tuning will take place over the next few weeks and hopefully I can get back to the track this weekend but I am happy with the way things turned out and only regret not doing this from the very start……
-replaced the TR224/224 .563/563 114lsa with the "Mamo cam" 224/228 .581/588 114 lsa
-installed the TSP ported ls6 oil pump
-LS2 timing chain
-milled my AFR 205 heads .030
-04 LS6 MAF
-installed Cometic .040 gaskets
-replaced the stock 26lbs injectors with some 28.8's
I used the same Dyno (Carolina Auto Masters) with nearly identical conditions
before#'s
408rwhp/396rwtq
After:
440rwhp/418rwtq
sorry for the poor picture I'll try to fix it later
A few notes and impressions:
-my oil pressure is a steady10-15lbs more than the stock pump
-this doesn’t show on the dyno but off idle and around the cruising rpm's there is a huge gain in power over my old setup.
-idle is exactly the same as the TR224 maybe even a slight bit better?
-After an hour drive I immediately strapped it on the dyno and it pulled 432/405 before tuning. The MAF and injectors gained~4 they were dyno'd and tuned after everything else
-this time I measured the pushrod length and setting up the valve train properly and it is a lot quieter over my previous set-up
Some additional tweaking and tuning will take place over the next few weeks and hopefully I can get back to the track this weekend but I am happy with the way things turned out and only regret not doing this from the very start……
05-28-2006, 06:54 AM
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Car is doing great! I have EFI-live and a wideband so I am playing with the tuning right now......Steep learning curve!!! I am using 93 octane and drive it daily with no problems.
05-28-2006, 10:34 AM
#37
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Do you mind a suggestion on the Injector? I am making more power then you and I only think its because of the Injectors you are using. 42# were too much, but Ford Racing 30# injectors work great. 30 on Fords scale is like 36 or so on the GM scale. Give them a try if you like. I keep telling everyone to watch their A/F ratio, some people are running rich and losing a lot of power. 12.8 or 12.9 to 1 while strapped to the dyno should yield perfect daily driving #'s for the street. Good luck, and you should be very happy. Great numbers with a medium sized cam. Give us the update when you get the final tune installed.
05-28-2006, 11:34 AM
#38
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very nice numbers Your combination seems to have inspired quite a few owners. Since the cam specifications were somewhat close to each other, do you have a guess as to how much of your power increase was due to the bump up in compression? Did the compression gain work out to about a half of a point? Nice work.
05-28-2006, 12:02 PM
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Originally Posted by allngn_c5
Do you mind a suggestion on the Injector? I am making more power then you and I only think its because of the Injectors you are using. 42# were too much, but Ford Racing 30# injectors work great. 30 on Fords scale is like 36 or so on the GM scale. Give them a try if you like. I keep telling everyone to watch their A/F ratio, some people are running rich and losing a lot of power. 12.8 or 12.9 to 1 while strapped to the dyno should yield perfect daily driving #'s for the street. Good luck, and you should be very happy. Great numbers with a medium sized cam. Give us the update when you get the final tune installed.
as long as he is not maxing out his injector he is fine. he can use a 30# or 42#, as long as he is set up correctly with his tuning. also, you are making more power than he is do to his 3:90s, your bigger cam, and your intake.
05-28-2006, 06:08 PM
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Originally Posted by under pressure
Your combination seems to have inspired quite a few owners. Since the cam specifications were somewhat close to each other, do you have a guess as to how much of your power increase was due to the bump up in compression? Did the compression gain work out to about a half of a point? Nice work.
As far as injectors goes I will not gain anything for power by upgrading to larger 30's my afr is where it needs to be and larger injectors will only make it safer in the long run....I'm not starving for fuel.