building a dream or wasting cash?

definitely, grumpy. you've been amassing a database of knowledge here and i take the plunge several nights a week and several mornings before i head over to work (yea noon - 3pm is the morning for me because i havent eaten breakfast yet)
 
rick this is an expensive website! ive never wanted to spend so much money in my life! ha ha ha
 
I want to do a Twin Turbo Poncho with you Phil down the road.
2,000 HP
Not likely this year. But its on my mind.
 
philly said:
rick this is an expensive website! ive never wanted to spend so much money in my life! ha ha ha
Click to expand...

Yea, if I had never come across this website, I would have saved about
$4,000 on my engine. But then again I might have spend more down the
road fixing things.

When I told the wife I needed $7,000 for the engine, now she had to think
about that over night.

 
I want a ride in your Datsun.
Turboed Phil style.
Been in many fast race cars on the street in the past.
I know what 8-second Track time driven on the street feels like riding shotgun & strapped in.
How the 5.0 guys broke in the 8.8 " rear ends I built for them.
They were 100 % Satisfied with my builds.
Crazy like us. Race......
 
soon as its finished and sorted out i would love to take it out on the power tour... i plan on keeping the 200mm rear (3.54 final drive) and cv axles with the mickey thompson 275xPRO tire

https://www.mickeythompsontires.com/newspage.php?id=241

from my experience on a 28 inch drag radial over the years, its hard to put more than 750lb ft of torque down on the street... that is, out of the hole on an unprepped street. i think if i can set up nitrous solenoids as boost controllers (setup we used in the 1000+hp/tq factory five cobra) to keep me at about 700 pound feet in first and second gear, then go wide open with everything its got in third and fourth gear, i would be less likely to slip off the line and still be able to give it everything upstairs.
 
Sometimes a Rear Gear Change does wonders for traction Phil.
1 Step Numerical Lower.
If an automatic, a Torque converter built so it does not hit so hard off the line.
If a stickshift, a different composition friction disc material.
Old school clutches in the GASSER Era, cars were tractuon limited too,
A switch from Sintered Iron Pucks to Copper Pucks.
Experimenting.
Most important is having someone knowledgable watch close as your car launches.
 
yea thats why im using the welded 3.54 versus the 3.70... if i wanted to move up to a 3.36 gear its very rare to snag in the 200mm size
 
I wonder how difficult it would be to install another type of IRS rear Phil.
Like a C4 IRS.
More Gear Ratio selection.
Or from a Cobra Mustang with an 8.8 Rear.
Lots of gear ratios made for them from Motive Gear, Richmond, Ford Motorsport.
 
As far as I know, The C4 IRS Rear provides the most Antisquat Traction.
Launch & Cornering. Stock 87 model year was around 85%.
 
Dana 36 C4 rear is 7-7/8" ring gear.
Dana 44 C4 rear is 8-1/2" ring gear.
200 mm Datsun is 7.875"
About same size as Dana36,
C4 dana 44 worth $2k +.
C4 dana 36 no one wants. Get it for $100-200 bucks.
 
Up front, C4 IRS Rear is actually a 4-link style .
Look at your C4.
 
87vette81big said:
Dana 36 C4 rear is 7-7/8" ring gear.
Dana 44 C4 rear is 8-1/2" ring gear.
200 mm Datsun is 7.875"
About same size as Dana36,
C4 dana 44 worth $2k +.
C4 dana 36 no one wants. Get it for $100-200 bucks.
Click to expand...


i'll have to look at the mounts in the back of my car. on the earlier 70-78 z cars a ford 8.8 out of an explorer goes in with relative ease, just fab a rear mount and have the drive shaft shop make you the axles. the later 79-83 zx cars are different in the rear, ive got to pull everything down and look at it next to my vette one day.
 
At work again Phil.
Dana 44 & Dana 36 both have 31-spline Stub Axles.
Have been into both.
Old threads now but I Built 2 Dana 44 C4's on Old Corvette Forum.
Posi units both pretty tough.
7/8 Bigger ring gear gives Dana 44 a slight edge. But not mch.
 
The rear Batwimg cover flexes bad Phil under race use.
Aluminum at its Nodule limit.
Brace it.
 
grumpyvette said:
http://www.pape.ws/allan_and_rosanne/Z-Car_Stuff/Swapping%20a%20C4%20Corvette%20IRS%20Into%20a%20240Z_files-Scottie/Swapping%20a%20C4%20Corvette%20IRS%20Into%20a%20240Z.htm

http://scottiegnz.com/corvette_irs_swap.html
Click to expand...

good reads but according to the specs and mods i see he he is doing to his S30 chassis car i'm not going to be able to run that rear and on my S130 without more and more extensive modification. Im going to lay a ford IRS 8.8 underneath the car, i have an explorer diff handy and a cobra diff only a phone call away, and see how that looks underneath there. like i said on the early body (pre 78) cars the explorer diff goes in easily with custom axles. we shall see what it looks like under he later cars eventually... first i have to get the drivetrain sorted out and put together. and before all of that i need to finish all these damn cars floating around and collect some money! lol
 
a popular setup on the earlier cars is to use the 230mm (9.05") rear end out of the later 350/370Z cars and some infiniti models... they all come LSD equipped and have final drive ratios ranging from 3.36 to 4.07.. i guess time and finances will dictate where that goes.
 
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