[phill21]

Hey guys i jUst installed an lt2 intake and i have a rotofab cai . Today i went on a friend dyno and wee made 2 runs and on both run the afr was around 12.0 to 12.4 . So it seems that is not lean at all. My friend is the best mustang tuner in my area and not very famliar with gm product but he told me that afr is ok and the stock tune work fine

[m6-lt1]

Originally Posted by phill21

Hey guys i jUst installed an lt2 intake and i have a rotofab cai . Today i went on a friend dyno and wee made 2 runs and on both run the afr was around 12.0 to 12.4 . So it seems that is not lean at all. My friend is the best mustang tuner in my area and not very famliar with gm product but he told me that afr is ok and the stock tune work fine

Thank you! I had been waiting for this for ever before installing the manifold that’s been sitting in my garage for over 6 months now lol. Did you by any chance do a before and after dyno?

[phill21]

Originally Posted by m6-lt1

Thank you! I had been waiting for this for ever before installing the manifold that’s been sitting in my garage for over 6 months now lol. Did you by any chance do a before and after dyno?

Hey sorry for the delay but today we put the car on the dyno and we made pass with the stock intake and with the lt2 to compare. I teally dont know whst to think . With the stock intake and rotofab my afr was at 11.9 to 12.2 and with the lt2 it was the samething but the hp gain was incredible. After 2 pass i made 30 more hp and 22 lbs of torque. I think it's high for just an i
ntake and a rotofab but the numbers dont lie.


Heres the graph with the stock and after with the lt2 https://www.flickr.com/photos/193312...posted-public/

[Alpha1BC]

Originally Posted by phill21

Hey sorry for the delay but today we put the car on the dyno and we made pass with the stock intake and with the lt2 to compare. I teally dont know whst to think . With the stock intake and rotofab my afr was at 11.9 to 12.2 and with the lt2 it was the samething but the hp gain was incredible. After 2 pass i made 30 more hp and 22 lbs of torque. I think it's high for just an i
ntake and a rotofab but the numbers dont lie.


Heres the graph with the stock and after with the lt2 https://www.flickr.com/photos/193312...posted-public/

These results are just modding the LT2 IM to fit and bolting it in with the rotofab? Nothing's been ported or anything like that right?

[phill21]

Originally Posted by Alpha1BC

These results are just modding the LT2 IM to fit and bolting it in with the rotofab? Nothing's been ported or anything like that right?

Yes stock throttlebody and not ported lt2 with rotofab dry filter and no tune.

[Alpha1BC]

Originally Posted by phill21

Yes stock throttlebody andbnot ported lt2 with rotofab dry filter and no tune.

Awesome, thanks for posting results!

[4sfed4]

Originally Posted by phill21

Yes stock throttlebody and not ported lt2 with rotofab dry filter and no tune.

Still running this @phill21?

[jkmskfk]

Originally Posted by jimadvig

I had a Solar ported 87MM/91 TB and a stock IM. After I installed the unported LT2 I picked up 12HP & 13TQ. I didn't have it tuned after the LT2 intake as I wanted to see what it did with just the intake. Plus everything was running perfectly so not sure if getting it tuned for it will be worth the extra cost at this point.

Do you have rotofab intake as well?

[CreeperRS]

Originally Posted by phill21

Yes stock throttlebody and not ported lt2 with rotofab dry filter and no tune.

Nice!

[Ruby13]

anyone get p0106 code after roto fab and lt2 intake....car dies when hitting the gas hard and shuts the car into reduced power mode...

[7speed]

Originally Posted by Ruby13

anyone get p0106 code after roto fab and lt2 intake....car dies when hitting the gas hard and shuts the car into reduced power mode...

Seems associated with map sensor, make sure connections are tight/plugged in for sensors that you relocated onto lt2.

[Blackmonba6Gen]

Originally Posted by 4sfed4

Still running this @phill21?

I just installed my setup today I have a ported LT2 w/ ported 87 throttle body to a 91Mm, rotofab CAI dry with Velossa tech scoop and stock tune and the car is running fine with no issues! I did pulls and definitely can feel the difference. I’m taking the car to the track and see how well it does in a week

[laynlo15]

I know mine is a little different but I swapped out to a ported Lt2 and stock 95mm, it was very rich on the first logs and lost about 13 rwhp on the very first pull on the dyno. We basically revised the MAP and brought the power back in just a couple pulls plus a little more. I would recommend a tune when you go from the Lt1 to the Lt1 just because you are bringing in more air which is going to require the MAP sensor changes. I don't see why you'd want to change the IM if you don't tune for it. Obviously, mine is a little more modded because of the porting and 95mm TB but save your money if you don't want to make tuning changes.

[wang970305]

Originally Posted by jimadvig

I had a Solar ported 87MM/91 TB and a stock IM. After I installed the unported LT2 I picked up 12HP & 13TQ. I didn't have it tuned after the LT2 intake as I wanted to see what it did with just the intake. Plus everything was running perfectly so not sure if getting it tuned for it will be worth the extra cost at this point.

That is what I had, but GPI said LT2 IM wont cause an issue only if i have a stock TB, so i took off my 87/91TB