LS Engines? +'s & -'s?
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
I took this picture of a 67 convertible at last spring Corvette Expo. This car even has the ABS hooked up on it. Very nice execution on the car. Nice and clean install. It made me want to do the install even more when I saw this car.
Last edited by Eddie 70; Jun 3, 2007 at 02:01 PM.
Le Mans Master
Joined: Jul 2001
Posts: 9,622
Likes: 16
From: absecon nj
Eddie and guys looking to swap cams,i just went for a ride in brothers camaro ,this is the cam im going with,car pulls to 7000 like its nothing .
He only has long tubes and this cam with flowmaster and so far ran a best of 12.7,and it feels like its got alot more to go.With a mild convertor and gears hell be in 11's easily and a smooth idle.This is the cam im going with.
99-TR-CHEATR-CAM Thunder Racing Custom "CheaTR" Camshaft - 214/230 .601/.575 117 LSA. Off Idle-6800 RPM Power Band. Broad power range. Works well with stock exhaust manifolds and catalytic converters. Stock like idle. Minor tuning required on automatic transmission cars. Due to the fast ramp rate of this camshaft, the use of 1.8 rockers is not recommended. Double valve springs and titanium retainers required for this cam.
He only has long tubes and this cam with flowmaster and so far ran a best of 12.7,and it feels like its got alot more to go.With a mild convertor and gears hell be in 11's easily and a smooth idle.This is the cam im going with.
99-TR-CHEATR-CAM Thunder Racing Custom "CheaTR" Camshaft - 214/230 .601/.575 117 LSA. Off Idle-6800 RPM Power Band. Broad power range. Works well with stock exhaust manifolds and catalytic converters. Stock like idle. Minor tuning required on automatic transmission cars. Due to the fast ramp rate of this camshaft, the use of 1.8 rockers is not recommended. Double valve springs and titanium retainers required for this cam.
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
With that LSA it probably has a stock idle sound to it. I can imagine that cam would be pretty stout on the top end. I wonder how it would be in normal driving, say around 1800-2000 RPM, where most of my cruising is done.
Just read the description, it says stock idle sound.
Just read the description, it says stock idle sound.
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
Has he done any dyno numbers on his car? I think it seems a little weird to see intake lift numbers larger than exhaust numbers. I guess I have never really paid too much attention to the numbers a whole lot but I am trying to learn with this motor.
Le Mans Master
Joined: Sep 2000
Posts: 9,078
Likes: 7
From: DFW TX
Cruise-In VII Veteran
St. Jude Donor '07
I bought the Comp cam XR269HR, now I'm thinking I'm about right for street driving.
Lift is .525 in 532 ex
Duration it 269 in 273 ex
Duration at .050 216 in 22 ex
lobe sep 114
Also adding
1.85 Comp rockers convert to .571 in 579 ex
The say it is a mid range cam with super top end power. Needs programmer.
What do you guys think? Is this cam worth installing or should I change to something like a XR273HR?
Lift is .525 in 532 ex
Duration it 269 in 273 ex
Duration at .050 216 in 22 ex
lobe sep 114
Also adding
1.85 Comp rockers convert to .571 in 579 ex
The say it is a mid range cam with super top end power. Needs programmer.
What do you guys think? Is this cam worth installing or should I change to something like a XR273HR?
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Thread Starter
Drifting
Joined: Apr 2007
Posts: 1,892
Likes: 3
From: Springfield Illinois
IF that's all you want do the following...
a) Aluminum Heads + EFI Converted Manifold/TB, Hyd Roller Cam, Headers and decent CAT/Mufflers, Closed Loop ECM (keep your bottom end if it's in decent shape).
b) 3.08 Rear Gear
c) 700R4 or TKO 5 Speed.
You could expect roughly 24MPG at cruise from a EFI 350CHP 350 with OD, plus you've dropped some weight too. More importantly you'll have given your C3 some long legs so it'll be much more fun to cruise long distances in.
a) Aluminum Heads + EFI Converted Manifold/TB, Hyd Roller Cam, Headers and decent CAT/Mufflers, Closed Loop ECM (keep your bottom end if it's in decent shape).
b) 3.08 Rear Gear
c) 700R4 or TKO 5 Speed.
You could expect roughly 24MPG at cruise from a EFI 350CHP 350 with OD, plus you've dropped some weight too. More importantly you'll have given your C3 some long legs so it'll be much more fun to cruise long distances in.
Le Mans Master
Joined: Sep 2000
Posts: 9,078
Likes: 7
From: DFW TX
Cruise-In VII Veteran
St. Jude Donor '07
Yes stock gen1 thermostat, i use the csr also with a 180 stat.
599 lift is still pretty tame in these. I sold my '01 Firebird to buy this vette!
My brother runs a magic stick 3 .609 plus lift in his 04 vette puts down 428 rwhp last dyno,but very radical and scary on the street.Runs 11.?'s last time out.But his 01 ss with only mild cam and headers and his tune just ran tuesday a 12.7 with drag radials,so yo dont need huge cams to go fast in these motors.
599 lift is still pretty tame in these. I sold my '01 Firebird to buy this vette!
My brother runs a magic stick 3 .609 plus lift in his 04 vette puts down 428 rwhp last dyno,but very radical and scary on the street.Runs 11.?'s last time out.But his 01 ss with only mild cam and headers and his tune just ran tuesday a 12.7 with drag radials,so yo dont need huge cams to go fast in these motors.
BTW - I started up the vette yesterday after 3 months. Started first crank. Got to love FI and open headers.
Melting Slicks
Joined: May 2001
Posts: 2,812
Likes: 4
From: Gig Harbor Wa
On a side note, I did some serious brake testing and it looks like the rears are locking up before the fronts. I'm still happy with the manual C5 setup, and will just add a proportioning valve to adjust the balance.
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
These are on Dan's website. I told him 2 months ago I was going to call him and order up a set. He even went as far as to confirm for me that his mounts put the motor in the same place as the original motor. This way the bellhousing is in the same location and the tranny mounts all should work out.
I will call and order a set tomorrow.
I will call and order a set tomorrow.
I will call and order a set tomorrow.
I will call and order a set tomorrow.
I will call and order a set tomorrow.
I will call and order a set tomorrow.
I will call and order a set tomorrow.
I will call and order a set tomorrow.
Maybe I can remember now to call Dan.
LS1 Conversion Motor Mounts
I will call and order a set tomorrow.
I will call and order a set tomorrow.
I will call and order a set tomorrow.
I will call and order a set tomorrow.
I will call and order a set tomorrow.
I will call and order a set tomorrow.
I will call and order a set tomorrow.
I will call and order a set tomorrow.
Maybe I can remember now to call Dan.
LS1 Conversion Motor Mounts
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
Le Mans Master
Joined: Sep 2000
Posts: 9,078
Likes: 7
From: DFW TX
Cruise-In VII Veteran
St. Jude Donor '07
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
Are any of you guys with running LS motors using the stock LS1 heads? The heads on my motor are 241's with only 27k miles on them but, I am thinking of trying to buy some LS6 heads to add a little more to the swap. I would also like to bump the stock cam up a little too.
Le Mans Master
Joined: Sep 2000
Posts: 9,078
Likes: 7
From: DFW TX
Cruise-In VII Veteran
St. Jude Donor '07
Are any of you guys with running LS motors using the stock LS1 heads? The heads on my motor are 241's with only 27k miles on them but, I am thinking of trying to buy some LS6 heads to add a little more to the swap. I would also like to bump the stock cam up a little too.
Melting Slicks
Joined: May 2001
Posts: 2,812
Likes: 4
From: Gig Harbor Wa
The sodium valves themselves don't gain any HP, but they let you rev higher without valve float.
I have stock LS1 heads. Can't remember the casting number, but it is the design before the 241's. I actually have a completely stock motor, minus AIR and EGR. I'm even running the stock programming.
I have stock LS1 heads. Can't remember the casting number, but it is the design before the 241's. I actually have a completely stock motor, minus AIR and EGR. I'm even running the stock programming.
Le Mans Master
Joined: Oct 2001
Posts: 5,145
Likes: 125
From: The Motor City
I'm running stock '00 F-body heads with the TR224 cam. It definietely pulls harder than stock but it really needs headers. Uncapping the dumps at the track gained me almost 2 tenths. If I were to do the swap over again, I would spend the $1000-1500 and picked up a set of ported LS6 heads. These days they're even more plentiful than when I did my swap now that the LS2s are using the same casting. I also would have modified my Hooker sidepipes to work. At the time, everybody said that they wouldn't work with oxygen sensors. Pat proved everyone wrong.
On a completely separate note... I have a photographer who is going to shoot my car for a spread in Corvette Enthusiast next Thursday (6/14). I'm pretty psyched about it. I was under the hood last night cleaning and there's a lot of work to be done. I pulled out all of the vacuum lines but still need to clean up wiring and then do a good cleaning of all of the surfaces. It's amazing how dirty things get when you only drive the car 3 times a year.
Check out www.prozakandtonic.com to see some of his work.
On a completely separate note... I have a photographer who is going to shoot my car for a spread in Corvette Enthusiast next Thursday (6/14). I'm pretty psyched about it. I was under the hood last night cleaning and there's a lot of work to be done. I pulled out all of the vacuum lines but still need to clean up wiring and then do a good cleaning of all of the surfaces. It's amazing how dirty things get when you only drive the car 3 times a year.
Check out www.prozakandtonic.com to see some of his work.