Project G4 AKA QuasiGhetto

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FasterNU

Mega Member
Jun 28, 2006
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San Diego
Yea.. talked to DriveShaft Pro too... they said 3" .083 is what they normally put on a ranger. But,... I am thinking 3.5 .083 might have a little more safety margin.

he said like 5,000 rpm critical speed for 3" .083. That seems iffy. Redline is 6000 ish.

But, could I hit redline in 3rd? 4th which is overdrive will actually drop driveline speed 25% since it is .75:1.
 

Do Dah

Senior Member
May 13, 2012
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Yea.. talked to DriveShaft Pro too... they said 3" .083 is what they normally put on a ranger. But,... I am thinking 3.5 .083 might have a little more safety margin.

he said like 5,000 rpm critical speed for 3" .083. That seems iffy. Redline is 6000 ish.

But, could I hit redline in 3rd? 4th which is overdrive will actually drop driveline speed 25% since it is .75:1.
Overdrive drops the engine rpm bro
 
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FasterNU

Mega Member
Jun 28, 2006
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San Diego
that's what i said do-dawg...

still curious if i could hit redline at 1:1 with this thing and 37's.... that would be the event for max driveshaft shaft speed.

dont think there is any chance in hell hitting redline in 4th. (even though it doesnt matter as this would be slower shaft speed)
 

FasterNU

Mega Member
Jun 28, 2006
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San Diego
yikes.. just ran an rpm calculator online. with 4.56 on an actual 37" tire to get to redline of about 6K.... I would have to hit 145mph!!!!!

and since my BFG are probably real 35's .... 6K for that is about 135mph.

Ummm.... yea, still kinda doubt that. Wonder what HP i would need....

But based on those numbers, shaft speed would be pretty high with calculator I found:

135mph x 336 (a constant) x rear ratio (4.56), then divide it by the tire height (35” tall tire) = 5,909.76 rpm

for a 37 it is 5,590

So, according to these specs I cannot likely obtain...I probably need a shaft rated to 6k.
 

FasterNU

Mega Member
Jun 28, 2006
8,314
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San Diego
I went with parts for a 3.5 x .083. shaft. I feel like that is overkill on OD... but it's weird because I find numbers all over the fucking place on critical speed.

Been tinkering on tons of tedious stuff. Ahhh, the correct factory oil filler. What a difference the details make.



Mounted bulkhead... and ordered a bunch of AC fittings from some old dude on ebay too(johnjoysyl). Super cool dude and gave me a good deal



Heater hose barely making that turn....



Got AC control mounted right behind the evap unit. And switch pro's mounted.



And the Holley ECU needed a home too, so had to make some brackets for that. Chinese finga up at top. Bitch to get washers and nuts on for sure



I think that is all I need back there?

 
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84projectford

Senior Member
Sep 8, 2010
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Phoenix Az
Hmm that's a really good idea Never even looked into the tools for that. Wonder how much it would cost
harbor freight my man. shits cheap. it does 1/4-20 and smaller. you can invest in a bigger one but ive used the shit out of mine without issue. all the e-track in the back of my shit box is rivnutted with that smaller HF hand one. i just buy more steel 1/4-20 or others from amazon or my local ace has them.
 

FasterNU

Mega Member
Jun 28, 2006
8,314
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San Diego
Those are 1/4 - 20 bolts in my picture. That would be perfect...only issue my bolts are stainless... so would need to blast um good with anti-seize. (which I already do with stainless anyway)

is this the one?
 

the bodj

1st post pg805
Mar 4, 2010
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Moorpark
I use a bigger one on amazon that comes with a butt ton of sizes. Works great. I use 1/2 riv nuts for skid plates, 3/8" for most tabs, and 5/16" for panels. I use it all the time now. And yes, get the riv nuts from amazon. Dirt cheap.

 

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