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Product Updates

Testing results

The first group of CV-1's sold out in 5 weeks! More are on the way with availability scheduled for later this month. Many thanks to the Pontiac community for embracing the new technology. Some of that first group are already in vehicles and will be displaying initial results soon. Ill be posting links to that info here as it becomes available.

We thoroughly enjoyed our first dyno session. Nervous energy gave way to excitement as the Superflow SF-901 began to show results from the "out of the box" unported 2.25/1.66" valve heads and gasket matched 4150 series mainfold. The 900cfm carb/one half inch open spacer provided a broad, flat torque curve with the home fabbed 'turtle' in the manifold that will soon be available for purchase due to its positive effect. Timing was set at 34* total.

Power was still rising when the redline was reached, but the engine's owner decided to play it safe considering the 2 bolt mains and cast crankshaft.

Specs and results are as follows:

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428 2 bolt main block

Stock crank

6.7" h-beam rods 

TRW LF2359 pistons

11:1 compression

.660 lift roller cam

256* @.050" 112 LSA 

RPM       TQ      HP     

4100     481     375

4300     483     395

4500     489     419

4700     500     447

4900     503     470

5100     519     504

5300     530     535

5500     534     560

5700     524     568

5900     521     585

6100     511     594

6300     508     610

     

click here to play video

Roland Racing contracted Ruble Racing (417)866-0381 as an independent third party to do the testing. The man in the video is 30 year race engine builder/dyno operator Jim Ruble. He pointed out that above 6000rpm the fuel usage (BSFC) was steadily decreasing while the horsepower was increasing. Those BSFC #'s were in the low .4 range, which were the lowest of the test. This is where he felt the motor was starting to "clean out" and run its best. 

As a footnote, the valve train performed perfectly again. No signs of pushrod/guideplate wear, as inspected by Mr. Ruble. 

 

First production run!

The pic below shows a partial quantity of the first Regular Production Order. These pallets are now at the machine shop and will be machined per each buyer's options. The CVI-1 single 4bbl intakes are also available in either 4150 or 4500 flange applications. People on the "option to buy" list will be contacted next week. Please check the updated Specs and Options page for ordering information.
Again thanks for your patience throughout the past year

FirstRPO.jpg

Raw castings

machined.jpg

Almost ready

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        Orders are shipping!