HIGHWAYMAN: Bringing the Devore 928 back from the dead
01-24-2017, 09:10 PM
#481
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I think those mounts are backwards, as the 'ears' on the engine girdle are horizontal with the engine in the car. So that sideways slant down towards the midline doesn't look right.
01-24-2017, 09:38 PM
#483
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01-24-2017, 10:08 PM
#484
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If they were reversed, they would be horizontal. Would that be right?
01-25-2017, 11:45 AM
#486
Developer
Engine mounts are also in there....CARL - DO I HAVE THEM ON THE RIGHT DIRECTION? Instructions don't say which side the notch goes on.
Finally, installed the solid steering rack mounts. Even though the car had delrin mounts, this is one spot I felt delrin was not up to the task and thus I went aluminum.
Finally, installed the solid steering rack mounts. Even though the car had delrin mounts, this is one spot I felt delrin was not up to the task and thus I went aluminum.
As Rob said, if you spin them around, the top of the mount will be flat, and that would be right.
The one with the relief notch goes on the right (passenger) side.
When I was developing our solid steering rack mounts, we went with Delrin first. But they didn't last 6 months in my application - they couldn't take the side loads and the heat, (they don't melt until 346 deg F, but they do soften at a relatively low temp). I think the combination of the heat to soften them plus the side loads of hard cornering is what did mine in. So I never went to market with Delrin. Looking at the picture of the Delrin mounts you removed, you can see that some of those center holes had already become elliptical.
Last edited by Carl Fausett; 01-25-2017 at 12:16 PM.
01-26-2017, 05:05 PM
#492
Developer
While I am waiting for your intake manifold to come back from Extrude-Hone, I have taken your lower manifold "shoe" to task.
The stock throttle body is 75mm, the tubing below the TB is roughly 75mm also, and the narrowest point inside the shoe is the two 50mm passageways to each bank.
The problem is that 75mm will not feed your 6.5L race motor adequately. It was good for them, but their application, 5.0L for street use, was completely different.
We can't just throw a bigger throttle body on there and expect the best of course... so I have cut out all the restrictions (anything less than 90mm) and we are opening it up.
The stock throttle body is 75mm, the tubing below the TB is roughly 75mm also, and the narrowest point inside the shoe is the two 50mm passageways to each bank.
The problem is that 75mm will not feed your 6.5L race motor adequately. It was good for them, but their application, 5.0L for street use, was completely different.
We can't just throw a bigger throttle body on there and expect the best of course... so I have cut out all the restrictions (anything less than 90mm) and we are opening it up.
01-26-2017, 05:06 PM
#493
Developer
These pictures show your new intake shoe. It's just fabbed up and tacked in place at this point. We have checked for clearances for the new TB and such and all is good so it is about to go to finish welding.
I have been able to place the larger throttle body low enough that the top of it lines up with the top of the old MAF sensor. I figured this would give you the most room to get your induction tubing to it without hitting the firewall.
Everything is 90mm or larger - and i will gasket-match the new shoe to the Extrude-honed intake manifold when it gets here.
I have been able to place the larger throttle body low enough that the top of it lines up with the top of the old MAF sensor. I figured this would give you the most room to get your induction tubing to it without hitting the firewall.
Everything is 90mm or larger - and i will gasket-match the new shoe to the Extrude-honed intake manifold when it gets here.
01-26-2017, 06:11 PM
#495
Developer
I think it will do very well. I know that Extrude-hone has been tried before and it was said that they did not see a very big difference.
What I do not know is if they modified the intake shoe to match, did they use a larger TB, and then you start going down the list of cams, valves, head porting, exhaust mods and everything else. If the engine was restrictive elsewhere and they plopped an extrude-honed manifold on it they wouldn't see much in the way of an improvement.
I think we will do better.
What I do not know is if they modified the intake shoe to match, did they use a larger TB, and then you start going down the list of cams, valves, head porting, exhaust mods and everything else. If the engine was restrictive elsewhere and they plopped an extrude-honed manifold on it they wouldn't see much in the way of an improvement.
I think we will do better.