supercharged lt1 guys??
Thread Starter
Staging Lane
Joined: Dec 2010
Posts: 63
Likes: 0
From: delaware
supercharged lt1 guys?? My question is what is your timing advance at wot?
Without meth
Reason I'm asking is my car feels slower after going from lt1 pcm and ignition and 11.7 psi. To 24x conversion and smaller pulley that makes 14 psi. And odviously different tunes.
Also I'm not a tuner nor do I have a clue about the subject I'm just trying to get pointed in the right direction. I have hptuners pro for datalogging. And the car was dyno tuned by a "professional " Ls tuner . My a/f stays in the 11's throuout wot.
Thanks in advance keith
Without meth
Reason I'm asking is my car feels slower after going from lt1 pcm and ignition and 11.7 psi. To 24x conversion and smaller pulley that makes 14 psi. And odviously different tunes.
Also I'm not a tuner nor do I have a clue about the subject I'm just trying to get pointed in the right direction. I have hptuners pro for datalogging. And the car was dyno tuned by a "professional " Ls tuner . My a/f stays in the 11's throuout wot.
Thanks in advance keith
Without dyno results to compare curves, or each tune to compare, its hard to speculate just based on feeling.
If it is a lot smoother and linear power delivery with the new computer, it could actually be faster while feeling slower.
If it is a lot smoother and linear power delivery with the new computer, it could actually be faster while feeling slower.
Thread Starter
Staging Lane
Joined: Dec 2010
Posts: 63
Likes: 0
From: delaware
Thanks for the input fellahs
maybe I'll drive it tomarrow and try and race my friends 600hp 2010. I might be able to get him out of the hole at least lol
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There are tuning differences between tuning an lt1 on a 24x vs ls1 besides simply what the different motors like. Iirc there is a bank difference between the two but I'm going off memory of a conversation and not personal experience.
you need to verify you have the injectors and coils swapped so they are running the correct cylinders. (4/7 swapped) i would imagine those being incorrect could kill 100hp pretty easy.
Thread Starter
Staging Lane
Joined: Dec 2010
Posts: 63
Likes: 0
From: delaware
Here's my 2 dyno sheets.
When I figure out the licences with no tuners I'll check #4 and #7 assighnment. Thanks for the suggestions
Last edited by KAMSVT; Jul 24, 2014 at 07:51 AM.
Thread Starter
Staging Lane
Joined: Dec 2010
Posts: 63
Likes: 0
From: delaware
Nice I take it those # netted you the 9.21 in your pick?
Thanks for the input I read some older threads and everyone was saying mid 20's and someone made mention that there's not much difference between n/a and fi. When it comes to timing with the lt1. Either way I've got a lot to learn I guess.
Thanks for the input I read some older threads and everyone was saying mid 20's and someone made mention that there's not much difference between n/a and fi. When it comes to timing with the lt1. Either way I've got a lot to learn I guess.
TECH Enthusiast
Joined: Oct 2011
Posts: 556
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From: Apopka FL
Nice I take it those # netted you the 9.21 in your pick?
Thanks for the input I read some older threads and everyone was saying mid 20's and someone made mention that there's not much difference between n/a and fi. When it comes to timing with the lt1. Either way I've got a lot to learn I guess.
Thanks for the input I read some older threads and everyone was saying mid 20's and someone made mention that there's not much difference between n/a and fi. When it comes to timing with the lt1. Either way I've got a lot to learn I guess.
TECH Enthusiast
Joined: Oct 2011
Posts: 556
Likes: 0
From: Apopka FL
Thread Starter
Staging Lane
Joined: Dec 2010
Posts: 63
Likes: 0
From: delaware
so i finally got up the ***** to change the high and low octane tables and at 2* increments i have advanced the timing to 26* at wot with no kr. and it pulls like a mother im pretty sure i found my missing hp. im going to stop here and try and learn more about tuning and hptuners before i put it on a dyno and try and find mbt.
so in my experience for those who read this and are sticking with the lt1 and 24x conv make sure the tuner doesnt treat it like another boosted ls1 and put 16.5* of timing to it. hopefully they tune to mbt.
i would like to add that i am not a tuner nor do i have a clue what im doing but itll be fun till it goes boom. lol.
thanks for all the info
so in my experience for those who read this and are sticking with the lt1 and 24x conv make sure the tuner doesnt treat it like another boosted ls1 and put 16.5* of timing to it. hopefully they tune to mbt.
i would like to add that i am not a tuner nor do i have a clue what im doing but itll be fun till it goes boom. lol.
thanks for all the info