Cam only 355 dyno numbers
03-01-2011, 09:59 AM
#1
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Cam only 355 dyno numbers What's everybody putting down with cam only 355 cars? More specifically with stalled 4L60Es? I had mine on the dyno yesterday and just want to compare what power I'm making with others with similar mods.
My list of major mods:
355 stock bottom end/forged flat tops
COMP 280XFI (467 cam)/1.6 Pro Mags
52mm throttle body/Moroso CAI
SVO 30# injectors
Jet Hot long tubes/2.5" true duals/Dynomax bullets
FLT Level 4 4L60E/Yank SS3600
Moser 9" rear/3.70/Detroit Locker
Accel 300+ ignition
CSR electric water pump
Underdrive crank pulley
That's about all I can think of. If there's anything else that may make a difference, ask me. I'll post up my numbers and graphs in a little bit.
My list of major mods:
355 stock bottom end/forged flat tops
COMP 280XFI (467 cam)/1.6 Pro Mags
52mm throttle body/Moroso CAI
SVO 30# injectors
Jet Hot long tubes/2.5" true duals/Dynomax bullets
FLT Level 4 4L60E/Yank SS3600
Moser 9" rear/3.70/Detroit Locker
Accel 300+ ignition
CSR electric water pump
Underdrive crank pulley
That's about all I can think of. If there's anything else that may make a difference, ask me. I'll post up my numbers and graphs in a little bit.
Last edited by SprayedLT1; 03-01-2011 at 10:07 AM.
03-01-2011, 10:08 AM
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I knew I was forgetting something important lol. First post updated. 280XFI cam. For those who don't know the specs, it is 230/236, .576/.570, 113 LSA with 1.6 rockers.
03-01-2011, 12:41 PM
#5
probably about the same as a cam only 350 unless you bump that compression up quite a bit. larger, heavier piston (forged) will add some weight to the rotating assembly.
my cam only, stock shortblock made 325rwhp through an unlocked auto. (CC503, Pacesetter Mids, Intake, etc)
my cam only, stock shortblock made 325rwhp through an unlocked auto. (CC503, Pacesetter Mids, Intake, etc)
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03-02-2011, 08:11 AM
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Ok, so it seems like I'm not too far off from the "average". My car was tuned by Brian Black aka "SMKN TA 95" from here, on the street with a wideband. He's no pro tuner, but apparently he knows his stuff cause the car runs great on the track, and puts up good numbers on the dyno, comparatively. Not sure if it makes much difference, but it was a pretty hot day that we tuned, too.
My best pull on motor was 332/348. I did another pull that has a few more hp, but I think it was getting heat soaked because torque was way down. We also did a couple pulls with the nitrous. When we tuned, I didn't have a bottle with me, so the spray tune is relatively safe (5 degrees taken out, base afr a little fatter). With the spray tune loaded up, I made 466/465. Overall I'm pretty happy with the numbers.
My best pull on motor was 332/348. I did another pull that has a few more hp, but I think it was getting heat soaked because torque was way down. We also did a couple pulls with the nitrous. When we tuned, I didn't have a bottle with me, so the spray tune is relatively safe (5 degrees taken out, base afr a little fatter). With the spray tune loaded up, I made 466/465. Overall I'm pretty happy with the numbers.
03-02-2011, 10:23 AM
#16
Ok, so it seems like I'm not too far off from the "average". My car was tuned by Brian Black aka "SMKN TA 95" from here, on the street with a wideband. He's no pro tuner, but apparently he knows his stuff cause the car runs great on the track, and puts up good numbers on the dyno, comparatively. Not sure if it makes much difference, but it was a pretty hot day that we tuned, too.
My best pull on motor was 332/348. I did another pull that has a few more hp, but I think it was getting heat soaked because torque was way down. We also did a couple pulls with the nitrous. When we tuned, I didn't have a bottle with me, so the spray tune is relatively safe (5 degrees taken out, base afr a little fatter). With the spray tune loaded up, I made 466/465. Overall I'm pretty happy with the numbers.
My best pull on motor was 332/348. I did another pull that has a few more hp, but I think it was getting heat soaked because torque was way down. We also did a couple pulls with the nitrous. When we tuned, I didn't have a bottle with me, so the spray tune is relatively safe (5 degrees taken out, base afr a little fatter). With the spray tune loaded up, I made 466/465. Overall I'm pretty happy with the numbers.
03-02-2011, 11:10 AM
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I am curious to see what my 355 lays down on a 175. As you can see, the converter already flashes way high on the dyno. I wonder if I will get any reliable information from it.
Then again, as long as it performs well at the track, which is does, I am happy.
Then again, as long as it performs well at the track, which is does, I am happy.
03-02-2011, 12:18 PM
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I meant I didn't have a bottle with me when the car was tuned 2 years ago. So for a spray tune, he just richened it up and pulled 5* of timing out, so it's just a generic safe nitrous tune that was never checked.
Just curious, what makes you think it's detonating on the nitrous pulls? Liek I said I'm not getting any knock, but I'm also on 93 octane pump gas. Maybe I should use 100?