LT1 "Cadillac" custom grind dyno results
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Joined: Oct 2001
Posts: 1,517
From: Engineerland
Chris desktop dyno is a good way to see what changes will have what effect but dont base a cam on what DD2k says. and its not so much centerline as it is intake closing point. which affects dcr which is only a tool for helping design a cam not the whole thing. you also have to think about the use of the car the lift the heads need to flow. the rpm range when where you'd like to see peak power. and cams usually do like to be 4 degrees advanced but I think that the right cam for an application will make best power installed straight up. intmd8's cam is probably really good but i want the graphs before i say anything about its overall performance. which is what matters to me. 15 rwtq every where in the rev range over his cam is enough to make quiet a difference at the end of the track when you only give up 5hp to atain this average power increase. just food for thought
Thread Starter
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Joined: Jan 1999
Posts: 884
From: I reached back like a pimp and smacked that LS1....
I didn't have time at work today to post the graph.
It will be done tomorrow.
It definitely does not trade off torque for horsepower.
It has more power EVERYWHERE.
It will be done tomorrow.
It definitely does not trade off torque for horsepower.
It has more power EVERYWHERE.
Thread Starter
Registered User
Joined: Jan 1999
Posts: 884
From: I reached back like a pimp and smacked that LS1....
Originally posted by Geoff Chadwick
Keep it up - I'm learning stuff!
From what I've gathered, this cam was designed to be a cam for a "daily driver" car, while still getting great top end. I'm going to have to see how things go, but my setup consists of the following mods:
Corsa catback, SLP headers and y-pipe (but I may swap for longtubes), meziere pump, SLP cai, high flow cat, SFC's, STB. My future mods are a 52mm TB, non-rubber elbow, port matching the heads/intake and a minor port/polish job on the heads. NX wet kit (100 shot). Tune.
My idea was add the lt4 cam and 1.6rr for some more power without a loss of daily driver usage as opposed to the hotcam. You say this cam has been optimized for a "stock" lt1, as in stock bottom end and stock heads? Would you figure the cam would shine even better then it has so far with more breathing mods, or has the cam really been optimized for a stock car? I'm trying to find a local dyno, and would be tuning with ed wright. If I got a few pulls in it's current state and then installed the cam/rr/springs and retuned, that would add more feedback to the cam's true results.
Keep it up - I'm learning stuff!
From what I've gathered, this cam was designed to be a cam for a "daily driver" car, while still getting great top end. I'm going to have to see how things go, but my setup consists of the following mods:
Corsa catback, SLP headers and y-pipe (but I may swap for longtubes), meziere pump, SLP cai, high flow cat, SFC's, STB. My future mods are a 52mm TB, non-rubber elbow, port matching the heads/intake and a minor port/polish job on the heads. NX wet kit (100 shot). Tune.
My idea was add the lt4 cam and 1.6rr for some more power without a loss of daily driver usage as opposed to the hotcam. You say this cam has been optimized for a "stock" lt1, as in stock bottom end and stock heads? Would you figure the cam would shine even better then it has so far with more breathing mods, or has the cam really been optimized for a stock car? I'm trying to find a local dyno, and would be tuning with ed wright. If I got a few pulls in it's current state and then installed the cam/rr/springs and retuned, that would add more feedback to the cam's true results.
The cam was originally intended for an otherwise bone stock LT1. I'm sure that it would react well to other bolt ons such as headers etc.
As far as the LT4 cam, I have a factory 97 LT4 SS that made 311rwhp and 325rwtq. (after a dyno tune and oil change). I would love to see what it would do with the 'Cadillac' cam, but I can't bring myself to modify it. (I've allready molested one perfectly good SS).
There is no difference in the LT4's idle quality compared to the 'Cadillac cam' equipped car, but the cam shows good potential considering it made more power in an almost stock LT1 than my 'balanced and bluprinted' LT4.
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Joined: Aug 2000
Posts: 3,523
From: TX
Im wondering how this cam will do with more extensive mods like ported heads and ported intake. If this cam was intended for a stock application do you see it gaining or losing more hp/tq with heavier engine modifications? Im looking for a stealth cam that can make big numbers.
Also in order to get a chip tuned for my 93 I will need to give the programmer my lift and duration numbers. How will that be handled if you plan on keeping the numbers on the cam secret?
Also in order to get a chip tuned for my 93 I will need to give the programmer my lift and duration numbers. How will that be handled if you plan on keeping the numbers on the cam secret?
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Joined: Apr 2002
Posts: 2,154
From: All around
When I get my car back from the shop, I'm going to find a dyno and get a pair of pulls as a baseline. Then I'm going to order this cam, install it over a few weekends (with springs, 1.6rr, GM heavy duty timing kit) and fix my intake manifold leak. Then dyno again and see what results I get. I should have the car back early next week and will order the cam the day after I pay the bill to the shop.
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Joined: Sep 2001
Posts: 782
From: Beaufort,SC
Originally posted by Birdie2000
Beautiful TQ curve (or should I say LINE
). Very impressive!
Beautiful TQ curve (or should I say LINE
). Very impressive!
you still ahve not said the lift, but you did say it needed new springs. i am guessing it is slightly larger than a hotcam.
