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  #521  
Old 09-15-2020, 04:05 AM
CarlC CarlC is offline
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Originally Posted by randy View Post
Fuel pressure question

When you turn the ignition on does the fuel pumps hold fuel rail pressure? Recently installed a lt4 in a friends 69 and ignition on the fuel pressure goes to 40ish and then drops to zero. Tested this with a online -6an fuel pressure gauge at the fuel inlet at the engine. My gmpp ls3 swap it will hold the fuel pressure with key on
What fuel pump is being used and how is it driven?
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  #522  
Old 09-15-2020, 05:15 PM
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Originally Posted by Cosmo mentis View Post
Mark,

Leaving cost out of the equation for now, would you ever want to install a full frame chassis in a 1st gen?

What would be your reasons pro or con?

Thanks...
If money were NO concern? I would definitely do a full chassis that was fully designed and engineered. Optimize everything and get the packaging just right. Redesign all the driveline while I was at it. Do all the FEA to make it as light and stiff as possible. Oh and if money were of NO concern I would do a full carbon fiber body to boot.

But then you need to ask your self my favorite Charlie question - "Then what are you gong to do with it".

Cruiser, Track Monster, Both...

At GM we have VTS - (Vehicle Technical Specifications) it has things like:

0-60 times
1/4 mile times
Top Speed
Fuel Economy
Interior Cabin Noise
Wind Noise
Exhaust Tone and Sound Level
Tire Wear
Stopping Distance
Ride Quality
Track Lap Times
Cooling Specs
Towing Capability
Etc.....

Which ones do you want to optimize? We have a teams of people at GM that work for years on this stuff.

You can not have a S-Class Mercedes ride and a Corvette ZR-1 lap times. Hard to violate the laws of physics.

Pro - It would be great! Could spend the time to get a optimized chassis and driveline.

Con - Time and Money, and you will be disappointed when you are done unless you do your own VTS.

Just my two cents.

Mark

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  #523  
Old 09-15-2020, 06:35 PM
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Off the shelf Hooker Black Heart header!





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  #524  
Old 09-15-2020, 08:57 PM
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Those headers look really good for an off the shelf.
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  #525  
Old 09-16-2020, 01:06 AM
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Off the shelf Hooker Black Heart header!





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  #526  
Old 09-17-2020, 12:05 AM
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What fuel pump is being used and how is it driven?
Carl we have spoken before and Iím sure Rodney has at rods car craft in Wylie Tx. Dual 450 pumps, ricks billet hat, returnless, your lt4 controller splitting the gray wire I think that is twisted in the gmpp harness
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  #527  
Old 09-17-2020, 01:25 AM
raustinss raustinss is online now
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So back to the i.r.s question, would you recommend doing a irs "kit' swap using c6 subframe to a 70 A body
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  #528  
Old 09-17-2020, 09:00 PM
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Mark,

I noticed that your rear brake caliper is mounted at the 9 o'clock position, if you were looking at it from the driver's side.

Is there a reason you do this? Any benefit or added performance from the caliper being mounted there instead of the usual 2-3 o'clock position?

Thanks!
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  #529  
Old 09-18-2020, 06:41 AM
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Originally Posted by raustinss View Post
So back to the i.r.s question, would you recommend doing a irs "kit' swap using c6 subframe to a 70 A body

Nope


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  #530  
Old 09-18-2020, 06:43 AM
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Originally Posted by jmac View Post
Mark,

I noticed that your rear brake caliper is mounted at the 9 o'clock position, if you were looking at it from the driver's side.

Is there a reason you do this? Any benefit or added performance from the caliper being mounted there instead of the usual 2-3 o'clock position?

Thanks!



This is the drivers side


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