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  #1  
Old 01-25-2020, 01:53 PM
jeff71 jeff71 is offline
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Hey Mark,

What mufflers do you intend to use? In the past I’ve heard several of your cars in person Mule, Jackass 1.0, Red Devil and Hellfire. If I remember correctly several of those ran the Borla XR1?

I’m at the exhaust stage on my project and want ZERO drone and mild sound as you seem to want.
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  #2  
Old 01-27-2020, 03:12 PM
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Hey Mark,



What mufflers do you intend to use? In the past I’ve heard several of your cars in person Mule, Jackass 1.0, Red Devil and Hellfire. If I remember correctly several of those ran the Borla XR1?



I’m at the exhaust stage on my project and want ZERO drone and mild sound as you seem to want.


Great question. I have a set of prototype mufflers coming from Hooker to try.

I want the same thing you do, fairly quite and no drone at 70 - 80 mph.

I’ll post on how they work and if Hooker is going to make them.

Mark


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Old 02-20-2020, 12:27 PM
colorado80439 colorado80439 is offline
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Working on the dry sump tank science project. This gets hidden in the passenger fender in the cowl area.

We run -8 lines off the valve covers to a -10. That runs to the top of the dry sump tank. Then the dry sump tank vents through a Mann and Hummel Air oil separator. The 5/8 line coming off the air oil separator runs to the induction tube.

The tall cylinder mounted to the dry sump tank is the transmission expansion tank. I run the vent line off the trans to the bottom of that tank. During open track days I have seen the transmission push out fluid when it is hot. Makes a mess. So now we add an expansion tank. Fluid get hot gets pushed into tank then drains back into trans when it cools.




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I have to admit I've been lurking about looking to replicate this oiling/venting system. I think Donny was questioning this before, maybe on a different build, but I'm wondering how to route the oil return from the air/oil separator. Above or below the oil level? check valve? No check valve? Vent it to atmosphere?
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Old 02-20-2020, 08:11 PM
WSSix WSSix is offline
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Malitude was even further out of your comfort zone I'd say and that was a grand slam of a car in my opinion.

As much as I'd love to see your idea of a 2nd gen, I'm still amazed and appreciative of how open you are with all of your builds. Thank you, Mark.
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Old 02-20-2020, 08:42 PM
jmac jmac is offline
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Ok, another question for you Mark!

With the DSE subframe, what transmission cross member are you using?

I know the DSE engine mounts move the engine back 1.5 inches, and they say to use a stock style cross member. What are you using in this build, and what have you used in past builds? The closest pic I could see was on post #61, but it's far in the background and I can't really make it out.

Thanks again for your time and expertise!
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Old 02-20-2020, 10:17 PM
will69camaro will69camaro is offline
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Ok, another question for you Mark!

With the DSE subframe, what transmission cross member are you using?

I know the DSE engine mounts move the engine back 1.5 inches, and they say to use a stock style cross member. What are you using in this build, and what have you used in past builds? The closest pic I could see was on post #61, but it's far in the background and I can't really make it out.

Thanks again for your time and expertise!
I’ll let him verify but looks like (holley) hooker blackheart one to me.

https://www.holley.com/products/ls_p...parts/12626HKR
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Old 02-21-2020, 06:58 AM
Sled Alley Sled Alley is offline
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Originally Posted by jmac View Post
Ok, another question for you Mark!

With the DSE subframe, what transmission cross member are you using?

I know the DSE engine mounts move the engine back 1.5 inches, and they say to use a stock style cross member. What are you using in this build, and what have you used in past builds? The closest pic I could see was on post #61, but it's far in the background and I can't really make it out.

Thanks again for your time and expertise!

The LT motor mounts and trans cross member are both hooker blackheart. We built the first set off gunner and got all of the angles set and holley is now producing them. They fit great and everything bolts in as it should. You do have to raise the tunnel to get correct driveline angle
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Old 02-21-2020, 06:53 AM
Sled Alley Sled Alley is offline
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Quote:
Originally Posted by colorado80439 View Post
I have to admit I've been lurking about looking to replicate this oiling/venting system. I think Donny was questioning this before, maybe on a different build, but I'm wondering how to route the oil return from the air/oil separator. Above or below the oil level? check valve? No check valve? Vent it to atmosphere?

The nipple off of the bottom of the air oil separator is mounted higher than the oil level and the line off of it returns low in the tank below oil level and does have a check valve coming right off of the separator
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  #9  
Old 01-22-2020, 09:27 AM
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The DSE sub from has a divot in it to clear a dry sump LS7 oil pan. Works good for that the LT4s and LT5s have the drain plug in a slightly different spot. So the guys at Sled Alley moved it.

People ask me why do you keep building 69 Camaro. I just keep on refining them. I missed this detail on Gunner with the LT4. I’m fixing it this time.

Bugged me every time I had to do an oil change.




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  #10  
Old 01-27-2020, 06:49 PM
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Heavy fab work. Adding a diff cooler. The Gen 5 ZL1 uses a oil to oil diff cooler. The transmission has a transmission oil pump in it. Pump the trans fluid to the radiator, through a oil to water oil cooler then to the diff thought a oil to oil cooler. The the fluid returns to the transmission. I’ll use a stand alone electric transport oil pump to circulate the fluid.

I repurposed the diff cooler to my GearFX housing. Made a steel box out of 3/16 mild steel (In hindsight 1/8 might be ok). Hogged out a big hole making sure the cooler clears the center section. Weld it all back together. The 3/16 plate did not warp when I welded it.

I did the same modification to Hellfire and Jackass. I did not add this to Gunner and I could over temp the diff in 4 20 min track sessions.




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