Tuning a Speed Density LT1???
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 3,219
Likes: 1
From: Somerset Co, NJ
Tuning a Speed Density LT1???
I heard it is very difficult to re-tune an LT1 with performance upgrades. Is this true?
For example, if I put a hotcam, LT4 style heads, bigger throttle body,w/LT headers, etc...
FYI: I have a '92 , MN6 trans.
For example, if I put a hotcam, LT4 style heads, bigger throttle body,w/LT headers, etc...
FYI: I have a '92 , MN6 trans.
Safety Car
Joined: Nov 2004
Posts: 4,991
Likes: 5
From: The Pines South Jersey
Hey Jimmy,
If you dont want this thread getting out of hand, see if Mojo can move it over to the scan and tune. Otherwise you could go to work and come back to this and it will be 3 pages long and you wont know anymore then ou did when you first posted it.
If you dont want this thread getting out of hand, see if Mojo can move it over to the scan and tune. Otherwise you could go to work and come back to this and it will be 3 pages long and you wont know anymore then ou did when you first posted it.
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 3,219
Likes: 1
From: Somerset Co, NJ
Originally Posted by jd_v3tt3
Hey Jimmy,
If you dont want this thread getting out of hand, see if Mojo can move it over to the scan and tune. Otherwise you could go to work and come back to this and it will be 3 pages long and you wont know anymore then ou did when you first posted it.
If you dont want this thread getting out of hand, see if Mojo can move it over to the scan and tune. Otherwise you could go to work and come back to this and it will be 3 pages long and you wont know anymore then ou did when you first posted it.
Team Owner
Joined: Sep 2002
Posts: 22,209
Likes: 12
From: OBAMA IS HITLER
may i strongly recommend www.pcmforless.com for your speed density tuning needs. alvin did mine, and i couldn't possibly be happier
Safety Car
Joined: Jun 2003
Posts: 4,250
Likes: 656
From: San Diego Ca
I have 3 93 speed density LT1s. And it is easy to do once you invest a grand or two of cash on the right equipment and several hundred hours to learn how to do it. And you get really good once you have maybe a thousand hours of tuning time.
I am am not trying to be funny. If you are not willing to really get into this don't start and simply buy from a reliable tuner or vendor. You will be way ahead of the game.
Perry
I am am not trying to be funny. If you are not willing to really get into this don't start and simply buy from a reliable tuner or vendor. You will be way ahead of the game.
Perry
Team Owner
Joined: Sep 2002
Posts: 22,209
Likes: 12
From: OBAMA IS HITLER
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Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 3,219
Likes: 1
From: Somerset Co, NJ
Originally Posted by pkincy
I have 3 93 speed density LT1s. And it is easy to do once you invest a grand or two of cash on the right equipment and several hundred hours to learn how to do it. And you get really good once you have maybe a thousand hours of tuning time.
I am am not trying to be funny. If you are not willing to really get into this don't start and simply buy from a reliable tuner or vendor. You will be way ahead of the game.
Perry
I am am not trying to be funny. If you are not willing to really get into this don't start and simply buy from a reliable tuner or vendor. You will be way ahead of the game.
Perry
I've just heard that S/D engines are alot harder to have it tuned right rather than a MAF engine, so before I take the plunge into modding the motor, I just want to know if its worth it or not ('92 LT1 here)
Last edited by C4Jimmy; Oct 10, 2005 at 05:18 PM.
Drifting
Joined: May 2003
Posts: 1,730
Likes: 1
From: Charlotte NC
St. Jude Donor '05
I tell you what, If you decide to put a hotcam in that car (or any other cam) in your car I can tune it to where she should drive like it could have came from the factory like that.
The only time speeddensity gets tough is when your doing blower stuff or just really unusual combinations. If you have any doubts check with the person you have in mind to tune it before you order/build your car.
The only time speeddensity gets tough is when your doing blower stuff or just really unusual combinations. If you have any doubts check with the person you have in mind to tune it before you order/build your car.
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 3,219
Likes: 1
From: Somerset Co, NJ
Originally Posted by Alvin
I tell you what, If you decide to put a hotcam in that car (or any other cam) in your car I can tune it to where she should drive like it could have came from the factory like that.
The only time speeddensity gets tough is when your doing blower stuff or just really unusual combinations. If you have any doubts check with the person you have in mind to tune it before you order/build your car.
The only time speeddensity gets tough is when your doing blower stuff or just really unusual combinations. If you have any doubts check with the person you have in mind to tune it before you order/build your car.
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
I had Alvin tune my 93 which is a hotcam, ported heads, headers. and the mailorder tune was dead on. Idles great, mid throttle is great, etc. I had him do a dyno tune about 1 month latter and there was very little difference in the car. Im telling you his mail order tune is very accurate.
Oh, and by the way, I passed emissions inspection with flying colors on everything except the HC. Now the HC passed but not as well as the other readings. I have been told by several others that this is normal with the hotcam due to valve overlap.
Oh, and by the way, I passed emissions inspection with flying colors on everything except the HC. Now the HC passed but not as well as the other readings. I have been told by several others that this is normal with the hotcam due to valve overlap.
Melting Slicks
Joined: Oct 2000
Posts: 2,158
Likes: 9
From: N.E. WA
I do my own tuning and SD is harder in my opinion. Most of my time has been spent dealing with tuning issues created by having an auto tranny. Idle is alittle hard to get right, as well as when the convertor should lock up to keep surge to a minimum. If you like to "tinker", then tuning a hotcam 6M should be relatively easy. If you don't want the "hassle", then just order a chip from someone with a good track record. Just a note: once you start tuning, it is hard to stop. It seems like something could always be better. Good luck with your decision.
