JW said:
I believe Miles had a edelbrock on his engine and have never seen a dyno sheet on it
Yes I do, JW, technically. It still has the factory casting number but that is the limit of the original design elements remaining.
StanJ has performed various mods to fit CPP heads; a full height divider (no gap), 3" spacer, 4150 base carb. The 4150 discharge flow pattern is cnc'd through the spacer all the way to the floor of the plenum, the runner entry into the two planes is hand blended from the plenum.
It remains a dual plane but it isn't a 2115 now.
Miles
Edit : Jan. 15, 2011
I have been asked by EZ, JW, and others what the results of all the 2115 mods was. The mods done, from the outset, was never intended to be used in the absence of the the rest of the engine combination. The 2115 we redesigned is not a stand alone piece. Thus, no before/after data exists.
My car, we refer to her as, Ruby, really is what has driven the engine design. Ruby is a 64 year old full figured four door fast back
Olds with a WS6 T/A chassis makeover including Truck Arm rear suspension. A 4500 lb canyon carver and long distance cruiser.
The engine build concentrated on Tq from just above idle to 4000rpm . I spend 98 % of my driving time below 3000rpm, so, I have tried to make choices, create the pieces as necessary, resulting in total reliability, excellent driveability, big torque, and over 20mpg on 87 octane at cruise . The mpg remains to be seen when Ruby hits the road again.
The power looks like this ...
. RPM . . 32*Adv.87 . . .36*Adv.87 . . 36*Adv.93 . . 518ci/11.5cr
2500 . . . 272/573. . . . . 268/563. . . . 275/575. . . . . 280/589
3000 . . . 335/586 . . . . .336/584. . . . 336/587. . . . . 334/585
3500 . . . 395/590. . . . . 397/595. . . . 400/601. . . . . 398/598
4000 . . . 465/611. . . . . 464/609. . . . 468/614. . . . . 483/577
4500 . . . 485/565. . . . . 485/565. . . . 490/572. . . . . 486/567
Please note I have listed the octane used during the test .. all data is with the dual plane on my engine, other than the last column on the right, which is a single plane on different engine (4.38"x4.3", FT Hyd, .050 quench). My engine is 4.36"x4.15", cr of 10.3, quench at .035", solid roller.
My dual plane, as Stan has redesigned it, works very well. Its all in the combination.
Miles
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