School me on speed density tuning
Thread Starter
Joined: Nov 2007
Posts: 1,929
Likes: 1
From: Chelsea, Michigan
School me on speed density tuning I am in the middle of building the ole lt1.
93 Z28
355
LE 226/232 .576 .571 110
Stock bottom end
Stock 22lb injectors
Lts, ORY
Stock heads (milled .020)
Who can do my base tune so I can start it? I was looking at the common pcmforless and mad tuner but they dont seem to do sd.
This is my first build. I searched but it seems all the threads turned into a bitch fest of sd vs maf.
Thanks!!!
93 Z28
355
LE 226/232 .576 .571 110
Stock bottom end
Stock 22lb injectors
Lts, ORY
Stock heads (milled .020)
Who can do my base tune so I can start it? I was looking at the common pcmforless and mad tuner but they dont seem to do sd.
This is my first build. I searched but it seems all the threads turned into a bitch fest of sd vs maf.
Thanks!!!
I am in the middle of building the ole lt1.
93 Z28
355
LE 226/232 .576 .571 110
Stock bottom end
Stock 22lb injectors
Lts, ORY
Stock heads (milled .020)
Who can do my base tune so I can start it? I was looking at the common pcmforless and mad tuner but they dont seem to do sd.
This is my first build. I searched but it seems all the threads turned into a bitch fest of sd vs maf.
Thanks!!!
93 Z28
355
LE 226/232 .576 .571 110
Stock bottom end
Stock 22lb injectors
Lts, ORY
Stock heads (milled .020)
Who can do my base tune so I can start it? I was looking at the common pcmforless and mad tuner but they dont seem to do sd.
This is my first build. I searched but it seems all the threads turned into a bitch fest of sd vs maf.
Thanks!!!
Keep in mind that its still recommended to do a dyno tune as soon as you can. SD tuning is a multi-step procedure, and impossible to get right first try through a mail order.
I had a Mad Tuner tune for my H/C setup, and while it got me up and running it was rich and conservative and I picked up close to 30rwhp with a dyno tune - and more importantly, since it was a DD, I got MUCH better drivability.
I had a Mad Tuner tune for my H/C setup, and while it got me up and running it was rich and conservative and I picked up close to 30rwhp with a dyno tune - and more importantly, since it was a DD, I got MUCH better drivability.
TECH Fanatic
Joined: Jun 2007
Posts: 1,255
Likes: 11
From: centerville, ohio
TECH Fanatic
Joined: Feb 2006
Posts: 1,025
Likes: 1
From: CT/NJ
Both places you mentioned do tune '93s. You just have to click on the 86-93 option on their sites. Ed Wright (fastchip.com) also does them and has a very good reputation.
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Thread Starter
Joined: Nov 2007
Posts: 1,929
Likes: 1
From: Chelsea, Michigan
Correct me if I'm wrong but I can just fill out the sheet of my mods etc and they send out the chip, correct? It's not like my old 99 that I send the whole computer in?
http://www.pcmforless.com/index.php?...pper&Itemid=73
Also, what should I have them set my idle at? Shift points? Rev limiter?
Thanks guys!
http://www.pcmforless.com/index.php?...pper&Itemid=73
Also, what should I have them set my idle at? Shift points? Rev limiter?
Thanks guys!
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Verdad Gallardo TECH Fanatic
Joined: Feb 2006
Posts: 1,025
Likes: 1
From: CT/NJ
Correct me if I'm wrong but I can just fill out the sheet of my mods etc and they send out the chip, correct? It's not like my old 99 that I send the whole computer in?
http://www.pcmforless.com/index.php?...pper&Itemid=73
Also, what should I have them set my idle at? Shift points? Rev limiter?
Thanks guys!
http://www.pcmforless.com/index.php?...pper&Itemid=73
Also, what should I have them set my idle at? Shift points? Rev limiter?
Thanks guys!
You should discuss the idle speed and rev limiter with the tuner. The shift points are not controlled by the ECM on a 93. You will need to change governor weights and or springs to modify that. Converter lockup is the only transmission parameter controlled by the '93 ECM.
TECH Fanatic
Joined: Feb 2006
Posts: 1,025
Likes: 1
From: CT/NJ
You pull the governor out, pull out the pins and swap them. Here is some good info. It is fairly easy to get the governor out with the trans still in the car.
TECH Enthusiast
Joined: Jun 2002
Posts: 634
Likes: 0
From: In the garage fixing LT1
The governor in your transmission is different from the one in the 3rd gens. I wouldn't use their RPM info. Yours is like the Corvette version. I used the springs included in the Transgo SK700 kit I bought (there was instructions on what type to use and several sets of springs included). The weights on our governors are lighter. It's easy to remove the governor though, so you can mess around with different spring weights to get the shifts tuned to your setup.
Some people buy an extra governor, install race springs, then use it exclusively at the track.
Some people buy an extra governor, install race springs, then use it exclusively at the track.
TECH Fanatic
Joined: Feb 2006
Posts: 1,025
Likes: 1
From: CT/NJ
If you go and read the link you will realize the OP is referring to 93 LT1 F body transmissions. So, I wouldn't disregard the info just because it is posted on a forum called thirdgen.org. May as well disregard all the LT1 info on here because this is LS1tech if you want to do that.
TECH Enthusiast
Joined: Jun 2002
Posts: 634
Likes: 0
From: In the garage fixing LT1
If you go and read the link you will realize the OP is referring to 93 LT1 F body transmissions. So, I wouldn't disregard the info just because it is posted on a forum called thirdgen.org. May as well disregard all the LT1 info on here because this is LS1tech if you want to do that.
3rd Gen.org is a fantastic site, don't get me wrong. I'm just saying he might want to do some more research before expecting the results posted in the linked thread.
