goes2fast Posted May 25, 2019 Report Share Posted May 25, 2019 8 minutes ago, goes2fast said: I finally found it, that is a nail head with the flow reversed, but couldn't find who or why. Quote Link to comment
Tedman Posted May 25, 2019 Report Share Posted May 25, 2019 Seeing as it's Memorial Day weekend and the Indy 500 is Sunday... 4 Quote Link to comment
datzenmike Posted May 25, 2019 Report Share Posted May 25, 2019 14 minutes ago, goes2fast said: I finally found it, that is a nail head with the flow reversed, but couldn't find who or why. Probably the exhaust was restricted so switcheroo. Larger intake valve used as an exhaust. Quote Link to comment
goes2fast Posted May 25, 2019 Report Share Posted May 25, 2019 1 minute ago, datzenmike said: Probably the exhaust was restricted so switcheroo. Larger intake valve used as an exhaust. I just read that the nail heads had very restrictive exhaust ports so as long as it was a blown engine this was thought to help. I couldn't find any info telling if it worked any better but I doubt if it did. Quote Link to comment
goes2fast Posted May 25, 2019 Report Share Posted May 25, 2019 27 minutes ago, Tedman said: Pretty sure that's a Buick V8. Some out-of-the-box thinking going on there. One of the early rail jobs. Lots of experimentation going on during that time period of drag racing. The the best part is the blower mounted in front of the engine and coupled directly to the crank snout. Couldn't do that with the intake in the V. Yes you could, a lot of cars used front mount blowers back in the 60s without using reverse flow. 2 Quote Link to comment
Tedman Posted May 25, 2019 Report Share Posted May 25, 2019 A couple more Offy turbos: 3 Quote Link to comment
Tedman Posted May 25, 2019 Report Share Posted May 25, 2019 34 minutes ago, goes2fast said: Yes you could, a lot of cars used front mount blowers back in the 60s without using reverse flow. Wow, had no idea others tried the front mount blower, and that twin engine job is crazy! Thanks for posting those. 2 Quote Link to comment
Tedman Posted May 25, 2019 Report Share Posted May 25, 2019 (edited) More twin engines, but less eight cylinders. 1st gen Civic IMSA racer. Left one has twin choke side drafts, while the right one has cycle carbs: Edited May 25, 2019 by Tedman 6 Quote Link to comment
goes2fast Posted June 9, 2019 Report Share Posted June 9, 2019 17 hours ago, VFR800 said: Electric conversion? If it is, motor not an engine. 🤔 3 1 Quote Link to comment
datzenmike Posted June 9, 2019 Report Share Posted June 9, 2019 7 hours ago, VFR800 said: We called these 'pancake' engines. 1 Quote Link to comment
difrangia Posted June 9, 2019 Report Share Posted June 9, 2019 (edited) ^ ^ ^ Damn, that brings back memories !! Owned two Fastback and one Squareback Type 3 VW's in the 70's. ^ ^ ^ Always did and still lust after a sunroof Knotchback. Those were great little cars !! Type 3 VW is what you get when a Type 1 Beetle grows up !! Edited June 9, 2019 by difrangia 2 Quote Link to comment
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