Dyno time!!!
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From: Bozeman, MT
haha, now im in a delemma. Won't get to dyno the 4bbl until next weekend, but the guy also said hes just going to give me the Edelbrock. I know its alot of carb for a mild 390, especially at my altitude, but the funding source is really low, especially with school starting up again. I should get the dyno graph from the guys at dynojet on Monday, so if I can I will get it up then. 240 at the rear sounds like a nice number to me. Then on comes a bigger cam and some head work.
Pk
Pk
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Joined: Jan 2003
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From: Iowa
Well, dyno 'em both, and then use the Holley.
I think you'll see a real nice gain from the combination of the cam and the head work, depending on how in-depth you get with the head work.
Edit: Was that the stock 2 barrel, or some bigger Holley 2 barrel?
I think you'll see a real nice gain from the combination of the cam and the head work, depending on how in-depth you get with the head work.
Edit: Was that the stock 2 barrel, or some bigger Holley 2 barrel?
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From: Bozeman, MT
That was a stock autolite 2bbl. Real nice low end throttle response, but just doesn't have it in the upper end.
I would love to run the holley, but the price tag on the Edel is just so much better, especially since I have a wedding ring to pay for now.
I would love to run the holley, but the price tag on the Edel is just so much better, especially since I have a wedding ring to pay for now.
Last edited by pkulaga; Aug 7, 2005 at 11:45 PM.
Post Fiend
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From: Iowa
Originally Posted by pkulaga
I would love to run the holley, but the price tag on the Edel is just so much better, especially since I have a wedding ring to pay for now.
I thought you already had the Holley. If you're getting the Edel for free, and the Holley is not, then go ahead and run the Edelbrock.
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From: Bozeman, MT
Originally Posted by gtex
and paying, and paying , and paying in inhumane ways you never even imagined when you said "I do".
I don't have the holley... yet. But my buddy at the dyno just gave me the edel. Im still going to try to get some pulls with both carbs, but I think in the end, he wants to keep the holley and since the edel is already rejetted with off road jets, it will probably work ok. My only concern is if its too much for this altitude: 5000 ft.
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From: Phoenix Az, by way of Fre
Neat.
I'm running basically a stock rebuild, but, ported heads and Holley 2bbl, same cam as you, but stock exhaust manifolds.
I run thru a c6 2wd, so, I'm probably right in the same neighbourhood power wise, maybe a little short given the manifolds and C6.
At what rpm did the tq and hp peak at?
I'm running basically a stock rebuild, but, ported heads and Holley 2bbl, same cam as you, but stock exhaust manifolds.
I run thru a c6 2wd, so, I'm probably right in the same neighbourhood power wise, maybe a little short given the manifolds and C6.
At what rpm did the tq and hp peak at?
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From: Bozeman, MT
Im still waiting for the dyno chart, once I get it I'll post it up. If I remember right the Peak HP was around 3500-4000 (I know that seems high for a 268H, but it never peaked dramatically). The TQ was Nice a flat and I think the peak was closer to 3500. Can't really remember for sure, I'll confirm with my graph hopefully in a while.
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You'd do well to listen to Greg...quote "and paying in inhumane ways you never even imagined when you said "I do". Key word here....inhumane...if you haven't said "I do" then don't...but then again you're probably like most of us and will do it anyway.
Good Luck either way you go.
Good Luck either way you go.
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From: Phoenix Az, by way of Fre
awsome, thanks for putting it up.
300tq at 1500rpm... zoinks...
the 337/373 misprint... I remember a desktop of my build saying ~380tq, so, I totally believed you.
nice to see real rear wheel power sheets... all done at 4000rpm eh... ha, sounds about like what mine feels like... these old things are nearly diesel like in thier power.
300tq at 1500rpm... zoinks...
the 337/373 misprint... I remember a desktop of my build saying ~380tq, so, I totally believed you.
nice to see real rear wheel power sheets... all done at 4000rpm eh... ha, sounds about like what mine feels like... these old things are nearly diesel like in thier power.
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From: Bozeman, MT
Yeah, I was rather surprised with it all myself. I know the Electrical Engineer who installs the dyno fo DynoJet here im Montana, he let me do the runs myself, rather enjoyable. If only my speedo wound up the same on pavement as it does on a dyno.
Falcon: Too late, got married July 18th, so far its been great. She loves the truck, it was actually our wedding vehicle, but I haven't got her totally convinced why its such a good idea to throw in a bigger cam. She drives an 05 Subaru Legacy 2.5 GT and wonders why I want more power. That stupid little car is far too fast for her.
I'll add another chart once I get the 4bbl on and compare.
Falcon: Too late, got married July 18th, so far its been great. She loves the truck, it was actually our wedding vehicle, but I haven't got her totally convinced why its such a good idea to throw in a bigger cam. She drives an 05 Subaru Legacy 2.5 GT and wonders why I want more power. That stupid little car is far too fast for her.
I'll add another chart once I get the 4bbl on and compare.