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My Bonneville Project up date

 
Old 12-13-2018, 08:00 PM
  #581  
Daves obsession
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Well we finally found the rpm limit for my motor at world of speed, extended operation at 8500 rpm took out the mains resulting in the number 8 piston unfriending the rotating assembly. Things went radically bad from there, so we are rebuilding the motor from scratch it was a complete loss.

I am going to sell my earlier ported plentum and injector housing, stage 3 cams, duel 53mm throttle body matched air horn.
This package made over 580 hp at the rear in a 372 cubic inch motor, 227 mph, and would make a screamer in a 415.

Also I have a mint thermostat housing for sale.






Last edited by Daves obsession; 12-13-2018 at 08:04 PM.
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Old 12-14-2018, 12:35 AM
  #582  
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What are you asking for the thermostat housing?
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Old 12-14-2018, 10:26 AM
  #583  
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Well this thermostat housing went 229.7 mph, before I removed it so $$650
disclaimer you may not see the same results ��
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Old 12-15-2018, 01:05 AM
  #584  
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How much for the intake....
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Old 12-15-2018, 08:14 AM
  #585  
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I will consider all offers > $4500 as I am raising money for the rebuild. similar intakes have original costs +/- $9000. Which is pretty close to what I paid for Corey to make this one. Lots and lots of painstaking time to create this artwork, this one has gone 225 mph.


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Old 12-17-2018, 10:03 PM
  #586  
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These truly end up being a one of a kind.

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Old 12-18-2018, 06:49 PM
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Got any engine forensics? ….
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Old 12-19-2018, 06:47 AM
  #588  
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beautiful work! dr phil has a 427 on the stand, but I don't think you can talk him out of it

that's what I'd build might think of ITB for your next build, we're trying to muster an effort for it.

Lotus made it work well with the old calliope intake in the rear engine race cars that turned up 8500 with flat plane crank and shorter stroke
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Old 12-20-2018, 02:03 PM
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Rpm at 8500 was starving the mains. Going to rebuild and limit rpm to 8100.
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Old 12-20-2018, 02:07 PM
  #590  
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Rebuilding the 372 back to where we were, we just pushed it to far without creating a dry sump for oiling.


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Old 12-27-2018, 08:48 PM
  #591  
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Originally Posted by Daves obsession View Post
Rebuilding the 372 back to where we were, we just pushed it to far without creating a dry sump for oiling.

get a 3 t accusump oil accumulator will provide a nice reserve, and you can prelube the motor before starting

if you bleed that one dry, you have too long a pull
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Old 12-28-2018, 11:00 PM
  #592  
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It’s basically 2 mins wide open throttle with little time below 7500 rpm the 4 to 5 shift is a 300 rpm drop. On the top end at the wall, it’s like the old California drag down, under full torque. I really do not need to go above 81-8200 I will be just making a small gear change to the Jericho.
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Old 12-31-2018, 01:44 PM
  #593  
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Originally Posted by Daves obsession View Post
Well we finally found the rpm limit for my motor at world of speed, extended operation at 8500 rpm took out the mains resulting in the number 8 piston unfriending the rotating assembly. Things went radically bad from there, so we are rebuilding the motor from scratch it was a complete loss.
With main oil distribution channeled entirely through the crankshaft drilled passages starting at the front Iíve sometimes wondered about the effects centrifugal forces at high rpm might have on oil flow to the furthest most rod and main bearings.
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Old 01-02-2019, 08:56 AM
  #594  
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You have a good point, all the bearings were smoked, number 8 was the worst and it was that rod that failed.
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Old 01-02-2019, 10:07 AM
  #595  
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cool,
ive got a couple 588'' BBC engs just off the dyno,,750hp at 5400,,that would make that car scream
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Old 01-02-2019, 11:00 PM
  #596  
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Records are by displacement a C motor is from 305 to 372, this is the record I am after. A 588 would be a AA motor with a record of 268 in a naturally aspirated stock body production car. We have gone 294 mph with the twin turbo A motor vette, it’s not just about going fast if it was I would use displacement and 30 psi of boost.

My goal is to set a record with the motor that originated in the car, it’s very easy to buy Hp once you move on to after market motors.


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Old 01-11-2019, 11:59 PM
  #597  
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Originally Posted by Daves obsession View Post
Records are by displacement a C motor is from 305 to 372, this is the record I am after. A 588 would be a AA motor with a record of 268 in a naturally aspirated stock body production car. We have gone 294 mph with the twin turbo A motor vette, itís not just about going fast if it was I would use displacement and 30 psi of boost.

My goal is to set a record with the motor that originated in the car, itís very easy to buy Hp once you move on to after market motors.

stick to your guns. Fastlane made some big hp with a 377 motor. Look him up Haven't heard from in a while and corey may know about the motor to replicate it

short strock stock crank turned down with lighter ti rods from pauter is what I would recommend with some nice flat top pistons and some chamber work for bigger valves and to soften them up

put a much less expensive ITB intake on her and let the mighty lion roar. I also saw some "calliope" lt5 flat plane crank motors lying around that would do well.

sheesh, I want the boat motor, who bought that one. Those headers need a pair of turbos.

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