Author Topic: old ATP turbo bench racing  (Read 6633 times)

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Online scottly

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Re: old ATP turbo bench racing
« Reply #25 on: February 17, 2025, 07:00:47 PM »
There was a '65 Corvair that went 156.9 MPH at Bonneville in 1967. ;D
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Online Don R

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Re: old ATP turbo bench racing
« Reply #26 on: February 17, 2025, 08:39:30 PM »
 I almost bought a three year old 69 corvair with the 4 carb engine. My Dad said there ain't going to be any Corvairs in this family. 2 years later he was driving a ramp side Corvair truck.
 My brother-in law learned not to throw a log chain in the back when you didn't bolt down the engine cover. It didn't break anything, but it stopped in just a few feet.
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Online Don R

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Re: old ATP turbo bench racing
« Reply #27 on: February 17, 2025, 09:01:37 PM »
 I wonder what effect a 301B40 turbo would have when replacing a 301B25?  I know everyone was looking for the F40 as used on the KZ1000.
« Last Edit: February 18, 2025, 11:21:33 AM by Don R »
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Offline willbird

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Re: old ATP turbo bench racing
« Reply #28 on: February 18, 2025, 03:19:48 PM »
There was a '65 Corvair that went 156.9 MPH at Bonneville in 1967. ;D

Old friend like to talk about a huge Corvair convention somewhere that paid Ralph Nader to come and give a speech, they offered him a ride in one and he said NO quite firmly LOL. 

Online Don R

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Re: old ATP turbo bench racing
« Reply #29 on: February 18, 2025, 06:27:36 PM »
My home built incantation of boost controlled water / meth injection used a small aluminum tank pressurized from the intake manifold through a 10-ish psi spring loaded ball check valve (run nozzle borrowed from a pal's funnycar fuel system) and an obviously WAY too large of a jet drilled into the carb... when the boost hit it instantly flooded and flat shut the motor off.
I found some details on the Dick Griffin Corvair system: He was running a 50-50 water/meth mix, injected through a .038" jet into the manifold between the carb and turbo, and was able to safely run boost up 30 PSI for 20-30 second bursts. His 1965 'Vair ran 12.33 seconds @116 MPH in the quarter, with 164 cubic inches displacement. ;D

 Interesting, I ordered the upgraded spring kit for the blow off valve, the seller says it gives a lot better boost control, more adjustable rather than on/off.    I'm wondering about the start timing retard on the CD ARD mag. As in how many degrees? It would be off /on with just the two choices.
  I'm just thinking about a boost retard with the ARD mag. I would need to understand the electronics of the retard switch to see if it can be manipulated to make other amounts of timing retard.
« Last Edit: February 18, 2025, 11:24:51 PM by Don R »
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Offline Medyo Bastos

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Re: old ATP turbo bench racing
« Reply #30 on: February 18, 2025, 07:39:42 PM »
Touch base with eli. I got my b-25 from him


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Online Don R

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Re: old ATP turbo bench racing
« Reply #31 on: February 19, 2025, 11:23:55 AM »
There was a '65 Corvair that went 156.9 MPH at Bonneville in 1967. ;D

Old friend like to talk about a huge Corvair convention somewhere that paid Ralph Nader to come and give a speech, they offered him a ride in one and he said NO quite firmly LOL. 

 I always thought it was unfair that Nadir picked out the Corvair but left the VW and Porsches with swingarm suspension out of the conversation.
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Offline dragracer

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Re: old ATP turbo bench racing
« Reply #32 on: February 20, 2025, 10:13:19 PM »
Odd this topic took a turn towards a subject I'm actively involved in now. I'm currently trying to get things together to rebuild this 110 to go into a 63 Monza project for the wife.  Its been an interesting journey so far. This is a cheap  barn find engine we scored. It was locked up tighter than a drum. Eventually I got it to turn over after soaking and coazing. With some 24 volt persuasion, it fired up and ran on all 6 cylinders. Man did it ever smoke like a freight train. One full bank pumped out oil from the exhaust while the other exhaust mainfold was a nice grey color. A compression test showed big time problems on t g e oily bank so i tore the heads and cylinders off. I found all of the rings aligned🤪😜 on all 3 cylinder where the smoke was originating. The heads are now in the shop for a valve job and I'm debating purchase of new pistons and a bore job. Hope to see fire back in the holes late spring and installation in the car by June. The goal is to yard drive it by the wifes birthday in August. Yes, I'm very optimistic 😊.

Sorry about intruding on the turbo thread Don.

Online Don R

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Re: old ATP turbo bench racing
« Reply #33 on: February 21, 2025, 11:47:15 AM »
 No worries, I'm a fan too, my Dad and I did a couple Corvair engine swaps in his truck. My brother was a VW guy so we always thought of a Corvair/VW swap. He bought a 58 BMW bike to do a VW swap into but by then the kits were out of production and he got the Beemer engine to start running good, except the cam bearing rattle.
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Online Don R

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Re: old ATP turbo bench racing
« Reply #34 on: February 21, 2025, 12:09:17 PM »
 We tried pulling the Corvair truck engine without the transmission, it didn't go well, the input shaft came out with the engine but was also still in the transmission. We had spares so I cut the shaft off and then pulled the transmission for re-assembly.

   My uncle repaired the big bucket loader at a junkyard and could get us all of the Corvair parts we wanted if we picked him up and took him along. He was always ready for a junkyard expedition, he was watching for steel beams since he believed that the floor in his basement was subsiding into a coal mine. He finally poured a concrete floor and moved.
 
No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.