Technical > Matt Shaff's Engine Shop
Coupling 2 engines
GlennLever:
This is an interesting question, it would be nice to try and clock them so that they try to smooth out the power stroke "pulse". In stead of a 12 cylinder Jag, you have a 16 cylinder American monster.
denverflatheader:
Glenn - 296moon's twin 455 olds..... that's the real 16 cyl. monster! He's got lot's more cubic inches and half the wb... got to admire his thought process : ) DF
GlennLever:
--- Quote from: denverflatheader on May 21, 2013, 07:57:03 AM ---Glenn - 296moon's twin 455 olds..... that's the real 16 cyl. monster! He's got lot's more cubic inches and half the wb... got to admire his thought process : ) DF
--- End quote ---
this one is not bad either
JrFuel Hayden:
In 1970-72 I had a dual BBC Top Gas Dragster. When the chassis was 1'st built the engines were hooker together with sprockets and HD chain. We, Parisey-Hansen team, ran it that way for the 1'st year, but when we wanted to cut the chassis to make room for a rear engine blower drive, we converted the engine couplers to the type used on rear-ends now. Couldn't see much of the coupler because most of it was inside the rear motor lower blower drive. We ran in the sixes and 225 mph on gas, with no signs of wear on the coupler, even tho we were running the current Top Fuel tires. We tried different clocking, mostly trying to even out the firing, but we found no improvement in ET's. So we just set both engines at TDC, for easier tuning. Which was confirmed by Walt Austin when we talked at a GoodGuys race in Seattle about 2006. One thing that we thought helped our combo, was the front motor was a 396 ci out of our single engine BB/GD we won class at 69' US Nationals, and the rear motor was a tall block 472 ci.
The idea was one motor made bottom end power and the small one made higher end power. We beat the "Freight Train" at the 71 US Nationals with that combo.
Have Fun with your new project !
Jon Hansen, 800-624-3803
masracingtd1167:
John do you remember Richie Shott from the east coast ? He ran top gas
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