Dyno predictions
Thread Starter
Burning Brakes
Joined: Jan 2009
Posts: 845
Likes: 54
From: Bangor, Northern Ireland
Dyno predictions
Ok, i've been inspired by Redwhitekat's dyno session. And by posting this it'll get me to the dyno quicker
Have a guess at my RWHP or crank HP then....
'71 vette
10-1 K/B hyper pistons
Edelbrock RPM heads, cam, Air-Gap and 750 vac-sec ( hyd flat tap)
Fully lightened and balanced
Ram ali flywheel (15lbs)
1.5 roller rockers
Pertronix 2 ignition and coil
Electric fan
No air con
Tremec 600RR 5-speed
3.55 gears
Peak power feels around 6200rpm
I've been on the dyno before but the dizzy was playing up so we didn't get a good reading, this has been replaced with a pertronix setup.
I then went on the dyno again but the car was popping at higher revs so didn't get a reading there.
We then found the problem with the car, silicon in the fuel tank ( lots of it) and a ripped filter sock, this had clogged the whole fuel system with silicon and at the same time we cut out the factory ballast resistor and she runs like a trooper now
I now have a wide band lambda sensor fitted so I can tune the 'in car'
The car feels very strong on the road
So then, any guesses?
Have a guess at my RWHP or crank HP then....
'71 vette
10-1 K/B hyper pistons
Edelbrock RPM heads, cam, Air-Gap and 750 vac-sec ( hyd flat tap)
Fully lightened and balanced
Ram ali flywheel (15lbs)
1.5 roller rockers
Pertronix 2 ignition and coil
Electric fan
No air con
Tremec 600RR 5-speed
3.55 gears
Peak power feels around 6200rpm
I've been on the dyno before but the dizzy was playing up so we didn't get a good reading, this has been replaced with a pertronix setup.
I then went on the dyno again but the car was popping at higher revs so didn't get a reading there.
We then found the problem with the car, silicon in the fuel tank ( lots of it) and a ripped filter sock, this had clogged the whole fuel system with silicon and at the same time we cut out the factory ballast resistor and she runs like a trooper now
I now have a wide band lambda sensor fitted so I can tune the 'in car'
The car feels very strong on the road
So then, any guesses?
Last edited by aaroncorvette; Mar 29, 2013 at 05:11 AM.
Thread Starter
Burning Brakes
Joined: Jan 2009
Posts: 845
Likes: 54
From: Bangor, Northern Ireland
I knew I'd missed something out!
355 SBC, hooker sidepipes with the glass packs, not the more restrictive wool packs.
Yep i'm going on a rolling road
355 SBC, hooker sidepipes with the glass packs, not the more restrictive wool packs.
Yep i'm going on a rolling road
Last edited by aaroncorvette; Mar 29, 2013 at 11:23 AM.
Drifting
Joined: May 2005
Posts: 1,968
Likes: 44
From: East TN
I purchased Dynolicious Fusion for my iPhone 5 and also a sturdy mount, I plan on testing it out on my vette.
I'm sure you'll see an improvement on your next dyno session. I'll guess about 350 at the wheels.
I'm sure you'll see an improvement on your next dyno session.
I'll guess about 350 at the wheels.
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Racer
Joined: May 2012
Posts: 354
Likes: 0
No cam specs?...........>
really not enough info? anyway what the h@ll.........I'll guess at the drives.......mmm......325-350 ish? tuned right? love these dyno conver's, speculation/expectation/controversy.......race on!
Racer
Joined: May 2012
Posts: 354
Likes: 0
But then my guess is very.........>
optimistic......I always hope for the best? better guess probably around the 300 mark.
Racer
Joined: May 2012
Posts: 354
Likes: 0
Racer
Joined: May 2012
Posts: 354
Likes: 0
I suppose we will have to see..........>
Melting Slicks
Joined: Oct 2011
Posts: 2,748
Likes: 90
From: Sacramento California
C2 of Year Finalist (performance mods) 2019
2018 C2 of Year Finalist
My AFR headed Roller cammed L82 made 260 rwhp at 4500 rpm....SO id guess your is likely a smidge less. Id guess >closes eyes< 300rwhp @6500 rpm.
Will you share a dyno run and put our guesses to shame?
Will you share a dyno run and put our guesses to shame?
Safety Car
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak
260 is what I made with edlbrock performers and comp cams xe262h with the action plus intake and 1.6 roller tip rockers. The dyno numbers could happy on my end as there's only one up here in alaska. I'd figure that yours would be 300 rwhp easy. I'd also figure that the 420 hp at the crank that edlbrock claims for the op's top end would make 307 being a little over 25% loss. The rpm top end kit uses a larger cam shaft to compensate for **** poor head flow to make the same power range.
Last edited by bluedawg; Mar 30, 2013 at 02:10 AM.
Thread Starter
Burning Brakes
Joined: Jan 2009
Posts: 845
Likes: 54
From: Bangor, Northern Ireland
I reckon about 280RWHP, the short block was built by a local company that machines aero engines, they know their stuff
I put the rest together
Yeah, i'm not sure where Edelbrock gets 420hp from??
What does a stock '02 Z put out? As I raced one and he wasn't getting away from me.
I put the rest together
Yeah, i'm not sure where Edelbrock gets 420hp from??
What does a stock '02 Z put out? As I raced one and he wasn't getting away from me.
Last edited by aaroncorvette; Mar 30, 2013 at 07:39 AM.