Hey Dave,

I see you have electric fans on your 77. What make are they and do they keep it cool? Im still running a flex fan in my 78. I think I can pick up a few hp with electric fans and a electric water pump.

Ray

 

Dirt:

If I had only known this I would not have bought my next setup and just bought 4340 5.565" rods. :/

Oh, and I believe somewhere I have the Car Craft w/604hp from Joe Sherman's setup!! We can get stuff like this from our library...I just "forgot" to give it back. hahaha

 

Fuel isnt an issue, I have started building up for my 421 project around te 305, I just installed a holley 130 GPH pump, and I have a mallory pressure regulator. Im goig to buy the kit that I was gonna use with my 400 block anyway, its a nitrous express atomizer kit adjustable from 125-300. I was gonna spray about 125=150 on the 421, but I think Ill just up it all the way and run it on the 305 to see what it will do.

The motor is uber fresh only about 100 miles on it with forged pistons and duramoly rings, so I think it will take th ebig shot at least for a while

 

Ray - the fans are the dual Flexalite with integrated shroud setup. Very nice. Yes, they do a great job of keeping the engine cool. And they blow a ton of air when they are going at full steam. This setup also comes with the thermostatic control box. I have mine set to come on at 170 degrees, and I have a 160 thermostat. The other key here is the huge 4-core custom rad. I run distilled water and a bottle of Redline Water Wetter. With this setup, only on the very hottest summer days in the worst freeway traffic does it get above 200 degrees. I'm pretty happy overall with the Flexalite package.



Dave

 

Dave:

that is the exact fan setup I have..but it doesnt keep my setup cool. I am going to buy a oil cooler in hopes of helping to keep mine cool

 

Is a 350 w/400 crank and the short rods actually a 383??? Just curious. I would think it would drop the cui a bit.

As for my set ups. Here are the 2 good ones I had while I had a SBC (70 SS 350). I've joined the LS1 ranks now.

What it came with when I bought it 12 years ago and duplicated for a rebuild: 4 bolt .030 350 block. Comp cams 292 mag... .501 lift I/E don't remember anymore spec on it. Weiand Team G, Holley 750 mech 2ndaries, holley blue pump, 292 angle plug heads (ported) 2.055 I, 1.65 E valves, 1.5 rockers, forged flat top TRW pistons, stock crank and rods and a HEI w/ accel coil. Very well built th 350 w/valve body work instead of shift kit, 10" converter and 12 bolt w/ 4.11 gears. Idiot before me welded the spider gears together.... Not a bad car for a 19 year old. Drove it daily and ran 12.90 right off the street shifting at 6000 RPM. The AC was still functional. Heads were a bit large for the cam or could have taken a larger cam, but I beat most things I raced. I later switched to a Mallory mechanical pump after I ate up 2 blue pumps. Didn't slow me down any either. Engine had more, but I wasn't very good at tuning.

2nd set up: Same components, different long block. Got a virgin bore 4 bolt 350 (scored it for $50 w/ stock pistons and rods, all machine work good) Ran the stock pistons and rods and a 305 crank. (Had to go cheap, married and both working our way through college at this time). Cam: Lunati Street master .507 lift I/E (don't remember lift @ .050) 108 * LSA and don't remember duration. Stock 186 68CC heads 1.94/ 1.50 valves. Low compression engine ran 13.36 on 87 octane. Not bad for a $800 long block. Loved the idle of this cam!!!

Last set up was done for efficiency and drivability and was based off the GM 330hp HO engine w/ a TCI sizzler converter, 3.08 posi w/ 4 wheel disk, 600 CFM Edelcrock POS on a Weiand Stealth intake, and same 186 heads. This was a high 14 sec slug. Took the fun out of driving the car.

Now I run mid 13's and get 30 mpg on the highway running 86 octane in my bone stock M6 00 SS .

 

displacement = pi * (bore / 2)2 * stroke * cylinders

 

Actually the volume of a cylinder (i.e. displacement) is PI * R ^2 (squared) * length.

So the correct formula is PI(~3.1416) X (BORE/2) X (BORE/2) X STROKE X Number of Cylinders.

 

lol. you arrive at the same answer I do.

 

Only if its a 4-inch bore you do. Did you mean for your formula to be (bore/2) squared, or (bore/2) times 2?

It's not the same if you meant the latter and the bore is anything other than 4.000 inches.

try 0.030 over....

(3.1416)*(4.030/2)*(4.030/2)*3.50*8= 357.157

(3.1416)*(4.030/2)*2*3.50*8= 354.498

NOT THE SAME ANSWER.

 

yes, i meant squared.

btw, I didnt come up with the formula, some website on google had it.. so if you want you can argue with him over the internet all day.. THANKS! LOL

or you can use..

BORE X BORE X STROKE X .7854 X # CYLINDERS

 

WRONG AGAIN!

You simply CANNOT change math or physics to suit your fancy.

I threw that curve at you to test you. The standard stroke on a 350 is actually 3.48 inches NOT 3.5!

OOPS!

Try it again...

(3.1416)*(4.030/2)*(4.030/2)*3.48*8= 355.116

(3.1416)*(4.030/2)*2*3.48*8= 352.472 WRONG!

The formula for calculating displacement is based upon the volume of the cylinder.

The volume of a cylinder is calculated by taking the cross sectional area of the cylinder (a circle) and multiplying it by its length.

The area of a circle is PI * RADIUS ^ 2 or PI * R * R

The radius of a cylinder is 1/2 its bore hense the formula for calculating discplacement:

Displacement = PI * (BORE/2) * (BORE/2) * STROKE * Number of Cylinders.

Sorry but its basic geometry not magic. Your version works on a standard 4-inch bore only because 4/2*2 = 4/2*4/2.

Don't argue with an engineer when it comes to math. You'll lose every time.

 

Hey no fair changing your answer!

So we're now in agreement that I was correct?

 

1981 Z28
355ci. 11:1 compression

Dart Iron Eagles 215cc

Comp XE 284 .507/.510

Victor Jr, 750 D.P.

1 3/4" headers w/ 3" X-pipe and Spintech mufflers

CSI electric waterpump

Ramchargers dual electric fans

CE slapper bars, 90/10 shocks and Moroso Trick springs

8-point rollbar

8.5" 10 bolt with mini spool and 3.73 gears

Best time so far : 12.13 @ 109 w/ 1.65 60 ft.(n/a) 11.43 @ 116 w/ 1.58 60 ft. 150 shot


Short block Waitng to go in:

10.5:1 406
SRP forged pistons
5140 I-beam 6" rods(new)
8600N nitrated crank(new)
Comp Cams XE Solid roller .577/.583 248/254 duration @ .050


About the small base circle cam, I got mine straight from Competition Cams and it did not cost any extra.

 

OH my daily driver,
1981 Z28
355ci 9.5:1
TRW L2256 forged pistons
Eagle SIR 5.7 rods
Eagle cast/steel crank
Dart Iron Eagle 200cc
Crane 272 HMV cam .454/.480
Performer RPM
750 VAC. SEC.
TH350 w/ B&M 3000 holeshot
3.42 gears
12.97 @ 103

We were expecting this car to run in the 13.8-14.2 range