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Old Mar 7, 2014 | 06:11 PM
  #21  
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Originally Posted by x11 nut
GXP25, where did you fin that sensor adapter - link ??

Cheers
You can get it off Brian tooley racing .com

Or I'll sell you mine
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Old Mar 7, 2014 | 06:38 PM
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Originally Posted by 91parkave
The rest of the LS family has different entry shapes and overall size off the opsu housing. I already went this route after ordering a ls1 and 2 block off plate and either the bolts won't line up or the port doesn't line up. Hence why I went with the glwshift adapter.
No drilling tapping nothing.

I still have the corvette opsu and here's a side by side. The ls4 housing still has the adapter plus opsu in it.


Side by side











That would explain why the block off plate/nipple for our vehicles doesn't match the others. It's unfortunately as it has to do with the oil pan.
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Old Mar 7, 2014 | 06:45 PM
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Originally Posted by GXP25
That would explain why the block off plate/nipple for our vehicles doesn't match the others. It's unfortunately as it has to do with the oil pan.
Yep I was pretty pissed after I made that assumption. When you think about it a 25 dollar Sand which plate isn't a bad investment
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Old Mar 7, 2014 | 06:56 PM
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Originally Posted by 91parkave
Yep I was pretty pissed after I made that assumption. When you think about it a 25 dollar Sand which plate isn't a bad investment
True. I just wasn't too fond of how much the oil filter protrudes at the bottom of the vehicle.

Could you please flip your calipers around and stick the other ends inside of the holes and measure them that way for both pieces? Also, could you switch over to millimeters?
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Old Mar 7, 2014 | 08:00 PM
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Originally Posted by GXP25
True. I just wasn't too fond of how much the oil filter protrudes at the bottom of the vehicle.

Could you please flip your calipers around and stick the other ends inside of the holes and measure them that way for both pieces? Also, could you switch over to millimeters?
The pic I took might have been deceiving. The oil after is dead nuts with the subframe. I don't have anyissues on my coilover setup.
Ls4-63mm from outermost portion of bolt holes.





Corvette piece=58mm




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Old Mar 7, 2014 | 09:09 PM
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Kinda good news.

Elongate the holes on the corvette piece a little since I'm going to assume that the threaded parts is in the block. Then use the corvette gasket as well.

That way, once both corvette pieces are torqued down, the extra opening on the LS4 oil pan won't be an issue as the oil won't have anywhere to go other than the smaller hole opening of the corvette piece. The gasket is there are a buffer.
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Old Mar 7, 2014 | 11:21 PM
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Originally Posted by GXP25
Kinda good news.

Elongate the holes on the corvette piece a little since I'm going to assume that the threaded parts is in the block. Then use the corvette gasket as well.

That way, once both corvette pieces are torqued down, the extra opening on the LS4 oil pan won't be an issue as the oil won't have anywhere to go other than the smaller hole opening of the corvette piece. The gasket is there are a buffer.
Things to consider Though the oil passages. In the ls4 plate are bigger. Even after you elongate the holes in the corvette piece you'll then need to hog out the cavity as well..

You could also just consider a oil filter relocation kit as well.


Corvette piece is 12mmx32mm

LS4 piece is 15mmx37mm
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Old Mar 8, 2014 | 04:16 PM
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Willing to send me that C5 Corvette piece?
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Old Mar 8, 2014 | 05:37 PM
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I'll send you both you'll want the ls4 as a template at least. The corvette piece is already tapped for 1/8th npt you can then use a 1/8 to 3/8npt adapter for your opsu.

Make a offer there yours
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Old Oct 19, 2015 | 08:15 PM
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Quick question - what's the best/safest way to clean everything?
My spare VLOM has been sitting and is dirty.

I was going to clean the aluminum with brake clean once disassembled but unsure as to what to use on the solenoids? Sensor safe cleaner or something?

Great thread!
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Old Oct 19, 2015 | 08:17 PM
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Brake cleaner
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Old Oct 19, 2015 | 09:58 PM
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I swear reading this thread made ??? Pop outta my head as to wth you guys are talking about lol, don't mind me I'm still a newbie.
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Old Oct 20, 2015 | 09:42 AM
  #33  
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yea koren I'm always like that here lol
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Old Oct 20, 2015 | 01:12 PM
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Originally Posted by Koren
I swear reading this thread made ??? Pop outta my head as to wth you guys are talking about lol, don't mind me I'm still a newbie.
It's the valley tray underneath your intake manifold.
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Old Oct 20, 2015 | 01:30 PM
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Originally Posted by Mike The Canadian
It's the valley tray underneath your intake manifold.
Sorry if I sound scrubby but....is this a mod to net hp gains? I'm sure it is lol but I'm still new to engine modding so excuse me for any future noob questions @.@
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Old Oct 20, 2015 | 01:34 PM
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Originally Posted by Koren
Sorry if I sound scrubby but....is this a mod to net hp gains? I'm sure it is lol but I'm still new to engine modding so excuse me for any future noob questions @.@
Not directly, most of us are modifying these to facilitate install of a non-ls4 style intake which yields big hp gains.
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Old Oct 20, 2015 | 01:39 PM
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Has that already been done? And wouldn't that kinda rip the tranny apart?
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Old Oct 20, 2015 | 08:52 PM
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I'm against most others opinion, at 112k my. Stock trans is still handling nitrous
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Old Oct 20, 2015 | 09:33 PM
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Never rebuilt 91? I'm at 111 I think on mine, idk if it's been rebuilt before I got it though
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Old Dec 12, 2015 | 03:59 PM
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Sir - question for you.
The grooves in the bolt holes that bolt the tray down; I notice in the photos that some are there, some are missing, etc.

Do you require these or can all of them be removed prior to install?
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