October Car Craft Magazine......"Big Bang Big Block"



October Car Craft Magazine......"Big Bang Big Block"

Postby grumpyvette » December 18th, 2014, 12:27 pm

I thought this was rather interesting
jackie schmidt wrote:The article is not on the Internet yet, so no link.

But what they did was take a big block out of a 90 one ton truck, did nothing to it but ad a mild hydraulic cam, (529 lift, 226/234 at .050),and some Race Rite Aluminum Heads. They kept the cast crank, the powdered metal rods, and cast pistons. They did regap the rings to keep them from closing.

Added....... Two turbos, 76 mm models from CXRacing, that would allow up to 29 pounds of boost blowing through a modified 850 Holley.

They tested first with no turbos, just the heads and cam. It made 442 HP at 5200, and 477 ft lbs of torque at 3900. Not bad for about 8 to 1 compression.

With the turbos, starting at 7 pounds of boost, the Hp went to 607, and torque at 667.
8.3 pounds of boost yielded 657 HP,
11psi went to 730, and 16.4 psi yielded 869 HP,
and then 958 HP at 19.2 psi. Torque was at 1032 ft lbs.


They then went to racing gas, and
finally hit 1237 HP and 1322 ft lbs of torque at just over 29 psi of boost.

They flogged the devil out of this "junk yard" engine, and the cast crank, cast pistons, and stock rods never gave up.

It's a pretty good read, this article is keeping with their "Blue Collar" 454 builds.

Everybody is always taking about just pulling a 5.3 LS out of a junker and stacking on some turbos. Well, this shows what a basic Rat Motor is capable of using the same guidelines.

I kinda wish they would have left the peanut port heads on, just to see what could be had. But they didn't.



http://www.cxracing.com/mm5/merchant.mv ... _Code=TOCH
IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!
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Re: October Car Craft Magazine......"Big Bang Big Block"

Postby philly » December 18th, 2014, 1:54 pm

so no intercooler either? interesting! cant wait to see that article
-phil

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Re: October Car Craft Magazine......"Big Bang Big Block"

Postby Strictly Attitude » December 18th, 2014, 2:41 pm

same here loving the turbo tech out there
"IF YOU CAN SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR SUSPENSION NEEDS MORE WORK!!"

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