It's just a six
Super Member
Just to let you guys know ,I finally put my Sy on a hub dyno today.
Made about 6-7 pulls.
Peak HP was 386 HP & 586 ft lbs of torque.
Average HP was 341-352range
Average torque was 550 ft lbs.
Started w/TI -16 ,T1-18,T120 & back down to 17, then 18,,, etc...
Did not need to change fuel pressure, AFR's were pretty good,,.quess the LM1 really works good w/real testing on the streets.
Best power,after everything was good & warm,,, was T1-20 psi boost, but the engine was seeing 20- 21 lbs of boost.
I tried T2 20 PSi but it made less power because I do not have race gas in the truck, it is pump gas.
So that meant if I want to run T2 , I need better gas.
Best pull was the first one set @ T1-20 ,engine was nice & cool,but as engine & everything else got hotter the HP & torque numbers went down.
I did not have any cool down time just made all runs back to back, to back to back ,etc
I took pictures of my Sy all bolted up to the wheel hubs.
The only thing,, the dyno guy could not print the sheets because he forgot his printer.
As soon as he mails the sheets to me I will send to anyone who is interested via e-mail.
I made that statement because there seems to be non believers here & you know who you are. ha, ha :lol:
The HP,& torque numbers are off the top of my head ,but they are pretty close to what I remember.
That's it, now & need to find some time & sticky tires to run at a track. :tup: :tup:
Any q's here is the dyno guys phone number 1 661-478-4922
Before I dynoed my SY,, there was a 66-67 convertable Vette,? side pipes w/a 496 BBC ,,it made 380 ft lbs torque & 360 HP, it had small heads aluminum & it was valve floating @ 5500 rpm. It seemed to be pretty weak (new engine though)
My friend also Dynoed my old 65 Malibu SS w/a 406 SBC,Victor heads 208in -160 ex. Air gap intake 9.85 to one compression Hyd roller cam 248 duration @ .050 585 lift, he made 350 HP & 450 ft lbs of torque. not bad. This was not the same engine I had in it when I owned it.
We were going to race but ran out of time.
I told him we need to race from a roll @ 50 MPH or I spin out of control. (No front prop shaft)
Maybe later.
Made about 6-7 pulls.
Peak HP was 386 HP & 586 ft lbs of torque.
Average HP was 341-352range
Average torque was 550 ft lbs.
Started w/TI -16 ,T1-18,T120 & back down to 17, then 18,,, etc...
Did not need to change fuel pressure, AFR's were pretty good,,.quess the LM1 really works good w/real testing on the streets.
Best power,after everything was good & warm,,, was T1-20 psi boost, but the engine was seeing 20- 21 lbs of boost.
I tried T2 20 PSi but it made less power because I do not have race gas in the truck, it is pump gas.
So that meant if I want to run T2 , I need better gas.
Best pull was the first one set @ T1-20 ,engine was nice & cool,but as engine & everything else got hotter the HP & torque numbers went down.
I did not have any cool down time just made all runs back to back, to back to back ,etc
I took pictures of my Sy all bolted up to the wheel hubs.
The only thing,, the dyno guy could not print the sheets because he forgot his printer.
As soon as he mails the sheets to me I will send to anyone who is interested via e-mail.
I made that statement because there seems to be non believers here & you know who you are. ha, ha :lol:
The HP,& torque numbers are off the top of my head ,but they are pretty close to what I remember.
That's it, now & need to find some time & sticky tires to run at a track. :tup: :tup:
Any q's here is the dyno guys phone number 1 661-478-4922
Before I dynoed my SY,, there was a 66-67 convertable Vette,? side pipes w/a 496 BBC ,,it made 380 ft lbs torque & 360 HP, it had small heads aluminum & it was valve floating @ 5500 rpm. It seemed to be pretty weak (new engine though)
My friend also Dynoed my old 65 Malibu SS w/a 406 SBC,Victor heads 208in -160 ex. Air gap intake 9.85 to one compression Hyd roller cam 248 duration @ .050 585 lift, he made 350 HP & 450 ft lbs of torque. not bad. This was not the same engine I had in it when I owned it.
We were going to race but ran out of time.
I told him we need to race from a roll @ 50 MPH or I spin out of control. (No front prop shaft)
Maybe later.
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