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11/27/13 2:29pm - Reply: 'Re: 383 install begins'
Case75
Former Member
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, - Canada

Vette(s):
1975 Corvette 383 stroker w/Patriot 190 heads, Eagle stroker kit, Comp 279TH7 cam, DUI distributor, Edelbrock 7116 intake, Edelbrock 1806 carb, Hedman Hedders, TH400 w/TCI Breakaway 2400 stall, Transgo 1-2 shift kit.

Joined: 6/19/2012
Posts: 230
nosal1 said:

Case you have the patience of Job and great sense as it would not be a fun drive in bad weather.We are encountering high winds of 25-40 mph here in Florida and I wouldn't want to trailer my BBQue pit!!

I wanted to ask if I didn't before,what rear gears do you have and transmission.Also do you still have the OEM leaf spring holding up rear carrier?? I have seen some horrific things happen with 2:73-3:08 rear gears and OEM springs. The cam you have in the engine has not the torque that my special grind has and the length of the band of same,however you should produce a great deal of torque and HP,albeit I do not have the cam card of your cam and can not run it through my computer program to determine TQ/HP however it will be healthy enough to eat some gears and break an OEM spring,depending how big your foot is and how far you can extend your leg!!!!

In any event I wish you the best and keep on keepin' on.
 Have a great day........Sal C 

Hi Sal,
Until funds allow I am stuck with the stock 3.08 rear. I had a new 9 leaf steel spring put in a couple of years ago. I'll have to behave myself in the mean time.

Here's the cam card: http://www.compcams.com/Company/CC/cam-specs/Details.aspx?csid=107&sb=2


____________________________________
 
Build Date: May 7, 1975. 383 w/267 RWHP/310 RWTQ
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11/27/13 2:37pm - Reply: 'Re: 383 install begins'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
 Holy Cow!! That's a pretty healthy cam!! It oughta sound great!! Thumbs Up

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11/27/13 4:27pm - Reply: 'Re: 383 install begins'
nosal1 Gold Member
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Dunedin, FL - USA

Vette(s):
1980 Corvette Torch Red with Gold metallic 370HP/350 CU.IN.Turbo 350 w/shift kit.Originally CA.Car with 305 CU.IN.

Joined: 3/21/2006
Posts: 229
Case75
     Tried to PM you and could not make sense of the system,hence I tried this..
 
   My computer program would not let me send the 4 pages that give you all the info impute I have such as your heads,cam    spec's,exact details of cam,TQ,graphs of same showing the power band and how they expand etc. at the various rpm along
 with HP. hopefully you can read the tables below..
    HP first column  torque is the second column, As you can see you have the early torque peak at 4000 rpm and max HP at 6000..This is more than enough to twist your wrist holding on to the wheel.
Have fun..    Sal C

1500 78.002174               273.111603

2000 140.063980              367.808014

2500 191.874298              403.089539

3000 227.338181              397.993378

3500 277.020813              415.689514

4000 327.341766              429.799744    +++

4500 364.007629              424.837341

5000 395.779510              415.726807

5500 413.475891              394.831879

6000 418.508087 +++          366.334076

6500 412.626099              333.401886

7000 385.561859              289.281555

7500 352.630707              246.935532

8000 292.018768              191.710327

8500 237.024918              146.453506

9000 179.854416              104.955040

9500 120.552032              66.646240

10000 64.559509              33.906654



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11/27/13 4:46pm - Reply: 'Re: 383 install begins'
Case75
Former Member
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, - Canada

Vette(s):
1975 Corvette 383 stroker w/Patriot 190 heads, Eagle stroker kit, Comp 279TH7 cam, DUI distributor, Edelbrock 7116 intake, Edelbrock 1806 carb, Hedman Hedders, TH400 w/TCI Breakaway 2400 stall, Transgo 1-2 shift kit.

Joined: 6/19/2012
Posts: 230
nosal1 said:
Case75
     Tried to PM you and could not make sense of the system,hence I tried this..
 
   My computer program would not let me send the 4 pages that give you all the info impute I have such as your heads,cam    spec's,exact details of cam,TQ,graphs of same showing the power band and how they expand etc. at the various rpm along
 with HP. hopefully you can read the tables below..
    HP first column  torque is the second column, As you can see you have the early torque peak at 4000 rpm and max HP at 6000..This is more than enough to twist your wrist holding on to the wheel.
Have fun..    Sal C

1500 78.002174               273.111603

2000 140.063980              367.808014

2500 191.874298              403.089539

3000 227.338181              397.993378

3500 277.020813              415.689514

4000 327.341766              429.799744    +++

4500 364.007629              424.837341

5000 395.779510              415.726807

5500 413.475891              394.831879

6000 418.508087 +++          366.334076

6500 412.626099              333.401886

7000 385.561859              289.281555

7500 352.630707              246.935532

8000 292.018768              191.710327

8500 237.024918              146.453506

9000 179.854416              104.955040

9500 120.552032              66.646240

10000 64.559509              33.906654


Sal, your numbers are very close to what Comp predicts on the Camquest software within 15 hp and 10 lbs/tq either way depending on how much credit I give the port quality of the heads. No doubt this thing will move. Need some 355:1 gears now.



____________________________________
 
Build Date: May 7, 1975. 383 w/267 RWHP/310 RWTQ
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11/27/13 5:03pm - Reply: 'Re: 383 install begins'
nosal1 Gold Member
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Dunedin, FL - USA

Vette(s):
1980 Corvette Torch Red with Gold metallic 370HP/350 CU.IN.Turbo 350 w/shift kit.Originally CA.Car with 305 CU.IN.

Joined: 3/21/2006
Posts: 229

Greg   My calculations were on the conservative side and will be higher in performance of the car.    You are right about the 3:55 rear gears,however you will need to go to a 700 R4 overdrive trans as you will work the engine to death and not go by many gas stations.   I have a friend who I built a 383 for and he had a 400 turbo in there with 3:55 gears and almost went deaf and poor until he got a 700 and is now running the freeways in CA. at a comfortablely,economically at top speeds..

If you do change to a 700(strongly recommended) try to stay below a 1986 700R4 as it will be mechanical and not electric as they require a commuter..

Have a great day and luck be with you in all your endeavors..Sal c 



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11/27/13 8:36pm - Reply: 'Re: 383 install begins'
tonytheroofer
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Rochester, NY - USA

Vette(s):
1980 L- 82 fully restored and upgraded.

Joined: 6/12/2012
Posts: 95
nosal1 said:

Greg   My calculations were on the conservative side and will be higher in performance of the car.    You are right about the 3:55 rear gears,however you will need to go to a 700 R4 overdrive trans as you will work the engine to death and not go by many gas stations.   I have a friend who I built a 383 for and he had a 400 turbo in there with 3:55 gears and almost went deaf and poor until he got a 700 and is now running the freeways in CA. at a comfortablely,economically at top speeds..

If you do change to a 700(strongly recommended) try to stay below a 1986 700R4 as it will be mechanical and not electric as they require a commuter..

Have a great day and luck be with you in all your endeavors..Sal c 



Actually the 700R4 was used with the TV cable up until 1993 , The one I have actually came out of a 1993 Buick road master  .. The later the year you find the better it is so 89 and up are ideal as the internals have most of the needed up grades you will want like a 10 vane pump ect ect ect ...

____________________________________
1980 , ZZ430 , 3.92 rear , 700R4 2400 stall NEW EZ EFI 
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11/30/13 1:04pm - Reply: 'Re: 383 install begins'
Case75
Former Member
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, - Canada

Vette(s):
1975 Corvette 383 stroker w/Patriot 190 heads, Eagle stroker kit, Comp 279TH7 cam, DUI distributor, Edelbrock 7116 intake, Edelbrock 1806 carb, Hedman Hedders, TH400 w/TCI Breakaway 2400 stall, Transgo 1-2 shift kit.

Joined: 6/19/2012
Posts: 230
So it looks like December 13th is when I will be trailering the car home and into my garage for the winter. I'll have to be satisfied with sitting in it once in a while until spring arrives.

____________________________________
 
Build Date: May 7, 1975. 383 w/267 RWHP/310 RWTQ
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12/3/13 8:55pm - Reply: 'Re: 383 install begins'
Case75
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, - Canada

Vette(s):
1975 Corvette 383 stroker w/Patriot 190 heads, Eagle stroker kit, Comp 279TH7 cam, DUI distributor, Edelbrock 7116 intake, Edelbrock 1806 carb, Hedman Hedders, TH400 w/TCI Breakaway 2400 stall, Transgo 1-2 shift kit.

Joined: 6/19/2012
Posts: 230
I have a couple of pictures of the finished install.
 
 


|UPDATED|12/3/2013 5:55:52 PM (AZT)|/UPDATED|


____________________________________
 
Build Date: May 7, 1975. 383 w/267 RWHP/310 RWTQ
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12/4/13 8:25am - Reply: 'Re: 383 install begins'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
 Thumbs Up Clap

I think ya need some bigger plug wires....LOL
Looks NICE!! Congrats!


____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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12/4/13 8:39am - Reply: 'Re: 383 install begins'
Case75
Former Member
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, - Canada

Vette(s):
1975 Corvette 383 stroker w/Patriot 190 heads, Eagle stroker kit, Comp 279TH7 cam, DUI distributor, Edelbrock 7116 intake, Edelbrock 1806 carb, Hedman Hedders, TH400 w/TCI Breakaway 2400 stall, Transgo 1-2 shift kit.

Joined: 6/19/2012
Posts: 230
Adams' Apple said:  Thumbs Up Clap

I think ya need some bigger plug wires....LOL
Looks NICE!! Congrats!

Thanks Joel! Yeah, those are "Livewires" from Performance Distributors. They are an 8mm core but are wrapped with a heavy jacket that is good to 1400*F.



____________________________________
 
Build Date: May 7, 1975. 383 w/267 RWHP/310 RWTQ
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1/14/14 11:45pm - Reply: 'Re: 383 install begins'
Case75
Former Member
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, - Canada

Vette(s):
1975 Corvette 383 stroker w/Patriot 190 heads, Eagle stroker kit, Comp 279TH7 cam, DUI distributor, Edelbrock 7116 intake, Edelbrock 1806 carb, Hedman Hedders, TH400 w/TCI Breakaway 2400 stall, Transgo 1-2 shift kit.

Joined: 6/19/2012
Posts: 230
Didn't get the car home in December like I thought. Had to order some rods and jets for the carb and they were back ordered everywhere in Canada. Parts came in after New Year's and shop finished tuning the car today on the chassis dyno. Final numbers are 267 RWHP and 310 RWTQ. When you account for driveline losses I am very happy for an A/C equipped car with cats through a TH400.

|UPDATED|1/14/2014 8:45:06 PM (AZT)|/UPDATED|


____________________________________
 
Build Date: May 7, 1975. 383 w/267 RWHP/310 RWTQ
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1/14/14 11:40pm - Reply: 'Re: 383 install begins'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
 Thumbs Up  Clap  Tongue
Very respectable numbers!


____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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1/14/14 11:46pm - Reply: 'Re: 383 install begins'
Case75
Former Member
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, - Canada

Vette(s):
1975 Corvette 383 stroker w/Patriot 190 heads, Eagle stroker kit, Comp 279TH7 cam, DUI distributor, Edelbrock 7116 intake, Edelbrock 1806 carb, Hedman Hedders, TH400 w/TCI Breakaway 2400 stall, Transgo 1-2 shift kit.

Joined: 6/19/2012
Posts: 230
Thanks Joel. Car is coming home on Sunday!!

____________________________________
 
Build Date: May 7, 1975. 383 w/267 RWHP/310 RWTQ
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1/17/14 11:32pm - Reply: 'Re: 383 install begins'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
Greg sent me a video of his car running on the dyno.Since we can't post vids here, I put it up on my youtube page, so HERE it is!!!   Nice!

____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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1/18/14 9:51am - Reply: 'Re: 383 install begins'
dyoes
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Zachary, LA - USA

Vette(s):
1974 L-48 Auto. Just your basic Vette. GM crate motor w/vortec heads and intake. Crane cam. Scorpion rockers, Edelbrock carb. Lots of parts still in boxes... :(

Joined: 1/27/2013
Posts: 201
Car sounded incredible!

But I really liked "Why Africa is not a military power."  Where in the world did you find THAT?  Clap


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"Let them that don't want none have memories of not gettin' any."
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1/18/14 6:13pm - Reply: 'Re: 383 install begins'
Case75
Former Member
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, - Canada

Vette(s):
1975 Corvette 383 stroker w/Patriot 190 heads, Eagle stroker kit, Comp 279TH7 cam, DUI distributor, Edelbrock 7116 intake, Edelbrock 1806 carb, Hedman Hedders, TH400 w/TCI Breakaway 2400 stall, Transgo 1-2 shift kit.

Joined: 6/19/2012
Posts: 230
dyoes said: Car sounded incredible!

But I really liked "Why Africa is not a military power."  Where in the world did you find THAT?  Clap

Thanks Darryl! Should pull pretty hard by the looks of the front end lifting up in the video. Can't wait for spring!



____________________________________
 
Build Date: May 7, 1975. 383 w/267 RWHP/310 RWTQ
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1/18/14 7:37pm - Reply: 'Re: 383 install begins'
tonytheroofer
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Rochester, NY - USA

Vette(s):
1980 L- 82 fully restored and upgraded.

Joined: 6/12/2012
Posts: 95
So your hitting 266hp , 310tq ? ? That seams pretty low for a 383 . .  You would hope with a 20% loss to be up another 100hp and have 40 to 60 more tq .. 

Or did I read those results wrong ? 


____________________________________
1980 , ZZ430 , 3.92 rear , 700R4 2400 stall NEW EZ EFI 
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1/19/14 1:17am - Reply: 'Re: 383 install begins'
Case75
Former Member
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, - Canada

Vette(s):
1975 Corvette 383 stroker w/Patriot 190 heads, Eagle stroker kit, Comp 279TH7 cam, DUI distributor, Edelbrock 7116 intake, Edelbrock 1806 carb, Hedman Hedders, TH400 w/TCI Breakaway 2400 stall, Transgo 1-2 shift kit.

Joined: 6/19/2012
Posts: 230
tonytheroofer said: So your hitting 266hp , 310tq ? ? That seams pretty low for a 383 . .  You would hope with a 20% loss to be up another 100hp and have 40 to 60 more tq .. 

Or did I read those results wrong ? 



I think it make sense. I read a chassis dyno test of a similar 383 in Super Chevy last month with the same heads and a cam with a bit more intake duration and more lift and they were getting 285 rwhp and 335 rwtq. I running cats on mine that they weren't so I'm not that far off what they were getting. And their engine made 426 hp on the engine dyno. That's a 33% loss. That puts my 383 at about 399 hp. Quite a bit of driveline losses in these old cars. I've read other tests of some Mustangs that were seeing 35% driveline loss compared to the engine dyno.

http://www.superchevy.com/technical/engines_drivetrain/cams_heads_valvetrain/1311_383_stroker_upgrades_project_homewrecker/



____________________________________
 
Build Date: May 7, 1975. 383 w/267 RWHP/310 RWTQ
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1/19/14 10:46am - Reply: 'Re: 383 install begins'
tonytheroofer
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Rochester, NY - USA

Vette(s):
1980 L- 82 fully restored and upgraded.

Joined: 6/12/2012
Posts: 95
The amount of power loss is dyno dependent , what dyno was used ? 

____________________________________
1980 , ZZ430 , 3.92 rear , 700R4 2400 stall NEW EZ EFI 
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1/19/14 11:44am - Reply: 'Re: 383 install begins'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
It's a fresh engine, and probably has not been fine tuned yet for max output. A little tweeking here/there will prolly wake it up even more. Running thru cats will also keep max output down somewhat. 300+ lbs/ft of torque on the street ain't nothin to sneeze at....Thumbs Up

____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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