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Search found 15 matches

by Craig J
Sat Dec 07, 2019 9:23 pm
Forum: Engine Tech
Topic: Hemi vs Chevy wager...
Replies: 26
Views: 1184

Re: Hemi vs Chevy wager...

In 1974 The 426 my father built ran 6.14 in the 1/8th at 117mph in a 3400 lb full frame 68 Nova. Figure out those stats with no high stall converter. Ran the Hemi converter that was around 2800. 6.14 gear Cross ram 660 holleys 12.5:1 Isky super leugera .550 solid. Shifted at 9500. Well.. if a solid...
by Craig J
Thu Dec 05, 2019 1:41 pm
Forum: Engine Tech
Topic: Big Block Chevy Oval Port vs Rectangle @ 20 PSI Boost
Replies: 6
Views: 313

Re: Big Block Chevy Oval Port vs Rectangle @ 20 PSI Boost

What do the heads flow? At 20 psi? I have no idea. I meant whats the heads in question? What does the rect port flow and what does the oval port flow? Do you know valve sizes and port areas? This may help give indication of what it might do with either head. Bit bigger head may make it abit softer ...
by Craig J
Thu Dec 05, 2019 11:02 am
Forum: Engine Tech
Topic: Big Block Chevy Oval Port vs Rectangle @ 20 PSI Boost
Replies: 6
Views: 313

Re: Big Block Chevy Oval Port vs Rectangle @ 20 PSI Boost

Orr89rocz wrote:
Thu Dec 05, 2019 10:47 am
What do the heads flow?
At 20 psi? I have no idea.
by Craig J
Thu Dec 05, 2019 9:45 am
Forum: Engine Tech
Topic: Big Block Chevy Oval Port vs Rectangle @ 20 PSI Boost
Replies: 6
Views: 313

Big Block Chevy Oval Port vs Rectangle @ 20 PSI Boost

Tall Deck BBC 4.280 Bore 3.76 stroke Small solid roller (less than .700" lift) Single Turbo: 88 x 124 mm compressor, 96 x 88 Turbine, 1.32 AR T6 10.3:1 Static CR EFI with E100 fuel 20 PSI Gauge Manifold Pressure Below 7000 rpm will a 310 cc intake rectangle port head make more power than a 265 Oval ...
by Craig J
Wed Dec 04, 2019 10:15 pm
Forum: Engine Tech
Topic: Hemi vs Chevy wager...
Replies: 26
Views: 1184

Re: Hemi vs Chevy wager...

Two EFI setups for $237. One has the EGR hacked off and has an aftermarket 85mm throttle body. I sold the other unmolested one for $100...

Image
by Craig J
Tue Dec 03, 2019 7:03 am
Forum: Engine Tech
Topic: Hemi vs Chevy wager...
Replies: 26
Views: 1184

Re: Hemi vs Chevy wager...

Anybody that pay $24k for 650hp has more money than brains. That's just ridiculous. I guess he paid that so he can say it has a hemi? My money is on the Chevy. It started out as a lot less money... he bought the complete iron head 426 with single 4 bbl for under $12K add dual quad setup add new sol...
by Craig J
Mon Dec 02, 2019 12:13 pm
Forum: Engine Tech
Topic: Hemi vs Chevy wager...
Replies: 26
Views: 1184

Re: Hemi vs Chevy wager...

lefty o wrote:
Mon Dec 02, 2019 9:53 am
cant you just buy a 632 crate motor from gm that makes that and then some , and save a few grand?! :roll:
The bet is 200% power for 25% investment... so basically 1300 hp for $6000...
by Craig J
Mon Dec 02, 2019 12:10 pm
Forum: Engine Tech
Topic: Hemi vs Chevy wager...
Replies: 26
Views: 1184

Re: Hemi vs Chevy wager...

Anybody that pay $24k for 650hp has more money than brains. That's just ridiculous. I guess he paid that so he can say it has a hemi? My money is on the Chevy. It started out as a lot less money... he bought the complete iron head 426 with single 4 bbl for under $12K add dual quad setup add new sol...
by Craig J
Mon Dec 02, 2019 6:25 am
Forum: Engine Tech
Topic: Hemi vs Chevy wager...
Replies: 26
Views: 1184

Re: Hemi vs Chevy wager...

I have that basic combo. Stock 454 , vs 78/75 turbos, 210 injectors , ms3 ultimate. I am using 781 heads . Mine is running now but I haven't made in power pulls. 4 digit power I think is reasonable but I am not sure about 1300 to get to the number you are describing . Mike What fuel are you plannin...
by Craig J
Sun Dec 01, 2019 8:54 pm
Forum: Engine Tech
Topic: Hemi vs Chevy wager...
Replies: 26
Views: 1184

Re: Hemi vs Chevy wager...

I hope that means 30cc dished pistons not domed. You’ll want to lower the Cr not raise it, dependant on your desired boost level of course E100, 10.5:1 static CR, and 20 psi is the plan... old big block chevy stuff all has pretty large combustion chambers, so it is going to take a 20+ cc dome to ge...
by Craig J
Sun Dec 01, 2019 8:51 pm
Forum: Engine Tech
Topic: Hemi vs Chevy wager...
Replies: 26
Views: 1184

Re: Hemi vs Chevy wager...

If one believes CarCraft/Motor Trend Road Kill, all one would have to do is pull a 5.3 LS out of the wrecking yard and bolt on a couple of eBay Chicom turbos, total cost less than $1,000 and an afternoon's work. I already built & tuned two of those myself, they were a pretty easy way to get to almo...
by Craig J
Sun Dec 01, 2019 8:44 pm
Forum: Engine Tech
Topic: Hemi vs Chevy wager...
Replies: 26
Views: 1184

Re: Hemi vs Chevy wager...

FC-Pilot wrote:
Sun Dec 01, 2019 4:49 pm
... of running an alcohol based fuel (even if it is just E85) will eliminate the need for an inter cooler...

Paul

I work for an ag equipment company, so I will be using E100. I'm not sure about the intercooler yet...
by Craig J
Sun Dec 01, 2019 3:33 pm
Forum: Engine Tech
Topic: Hemi vs Chevy wager...
Replies: 26
Views: 1184

Hemi vs Chevy wager...

One of my best friends (8Pack) has a 472" hemi that is finally going on the dyno after complete disassembly due to a thrust bearing failure. He got the complete iron head 426 for what seemed like a very good price, but he has dumped a ton of money into repairs, in total he has well over 24K in it. H...
by Craig J
Sat Feb 09, 2019 3:32 pm
Forum: Engine Tech
Topic: E100
Replies: 2
Views: 574

Re: E100

The Ka & Uno both have an intake heater that typically turns on if the ambient temp is below 15 degrees C. I am not sure how well E100 would work in a daily driver in the northern US... I suspect it would be a problem. 30 years ago in Brazil they had a small tank of gasoline to warm up on and then c...
by Craig J
Fri Feb 08, 2019 6:40 pm
Forum: Engine Tech
Topic: E100
Replies: 2
Views: 574

E100

I travel to Brazil frequently for work, and I almost always buy E100 when I am there (E25 is the only other alternative). Other than the reduced mileage, the current flex fuel rental cars like Ford Ka or Fiat Uno basically drive the same on E100 as they do on the E25... I have been thinking about my...