Big Cam
Big Cam MODS : 1998 Z28 ATI Procharger 5 psi, Hooker LT's, Race mufflers with dumps ( no cats ), Lucas 42.5 lb injectors, Custom Computer Tuning, Spec Stage 3 Ceramic Clutch, Moser 9 ", 411 Pro Street Gears, Detroit Locker, 35 Spline Axles, NGK TR6 Spark Plugs, MSD Plug Wires.
Dynoed 450 RWHP 431 RWTQ
This is not a daily driver
Ordered this cam a couple days ago: 232/238 590/605 115.5 LSA
I will be using the Manley dual springs, with titanium retainers, along with the Manley 2.055/ 1.6 valves.
We plan on cutting valve reliefs in the pistons, to help with the clearance issues, and possibly thicker head gaskets.
What problems can you guys possibly see in this set-up?
Also the heads that will be installed back on the car will be ported, and they are the 98 heads with the " notch " we were probably going to have the " notch " TIG welded in and the heads milled. Is this something we should do?
or will it hurt us?
If this might be a problem I should be able to get a newer set of heads without the " notch " in them.
Thanks, Don
Dynoed 450 RWHP 431 RWTQ
This is not a daily driver
Ordered this cam a couple days ago: 232/238 590/605 115.5 LSA
I will be using the Manley dual springs, with titanium retainers, along with the Manley 2.055/ 1.6 valves.
We plan on cutting valve reliefs in the pistons, to help with the clearance issues, and possibly thicker head gaskets.
What problems can you guys possibly see in this set-up?
Also the heads that will be installed back on the car will be ported, and they are the 98 heads with the " notch " we were probably going to have the " notch " TIG welded in and the heads milled. Is this something we should do?
or will it hurt us?
If this might be a problem I should be able to get a newer set of heads without the " notch " in them.
Thanks, Don
for a blower you want a wider LSA. This makes for an easy idle. assuming this is a 346 engine i would personally have ran a bit smaller of a cam more so for tuning issues rather then performance. it should work pretty well though. good luck.
Teching In
Joined: Jul 2014
Posts: 4
Likes: 0
cam can someone help me I have a 1998 z28 with a 231 237 .585 .595 cam and a 2800 stall, driveabilty issues are drives like its in cruise control , hard to slow down at lights and it wants to keep creaping forward, died acouple times at idle in gear, ive heard many reasons why , but all different. the only fact I know is the cam called for at least a 3500 stall not sure why previous owner installed it. looking for answers , thank you
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can someone help me I have a 1998 z28 with a 231 237 .585 .595 cam and a 2800 stall, driveabilty issues are drives like its in cruise control , hard to slow down at lights and it wants to keep creaping forward, died acouple times at idle in gear, ive heard many reasons why , but all different. the only fact I know is the cam called for at least a 3500 stall not sure why previous owner installed it. looking for answers , thank you
How spot on is your tune? That would be your second possible issue. A cammed LS1s' daily driver abilities rely heavily on how spot on the tune is.
Last but not least what gears are you running....2.73 is just flat out a no go with any cam...or even bone stock for that matter. My 98 Formula has the dreaded 2.73 gears with the stock cam and it annoys me that when I stomp on it from a dig the car lazily slips the tires. 3.42 and up depending on what you want to do with the car is ideal.
Just my .02
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Verdad Gallardo Teching In
Joined: Jul 2014
Posts: 4
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stall it has 3.73 gears, im still trying to get the whole story about the cam and these computer issues with 1998, this cam has a lsa of 112. I was told even changing the stall wont make it that much better, another said stay with a cam with a lsa of no more then 110, its gona be a daily driver in summer depending on weather so I don't want the auto pilot feeling when driving. the creeping forward at lights or sometimes dying on me at a light.
it has 3.73 gears, im still trying to get the whole story about the cam and these computer issues with 1998, this cam has a lsa of 112. I was told even changing the stall wont make it that much better, another said stay with a cam with a lsa of no more then 110, its gona be a daily driver in summer depending on weather so I don't want the auto pilot feeling when driving. the creeping forward at lights or sometimes dying on me at a light.
or..
A lot smaller cam !