JeremyF

iTrader: (23)

Here are some graphs of some Cars that we dynoed, tuned, and swapped the intakes and TBs. Some are direct A-B swaps and show the results. Some are Base runs then a rough tune and then we swap the intake and TB, and then fully optimize the tune.

1st is a Stk 07 LS7 ported and tuned: 1st is base, 2nd is base tune, 3rd is ported and tuned completely.


Here is a bolt-on 07 LS7 (w/ headers CA)I base tune and then ported and tuned.


Here are two C6 LS2's with just cai and cat backs before and after tune and Ported intake and TB:




383 LS6 to ported FAST and nice set of heads:


408 LS6 to ported FAST:



Obviously the larger motors wanted the larger manifold more than a smaller motor but we have had an LS2 with one of our ported LS2s on it Put a ported FAST on there and pick up 22RWHP and 30RWTQ on a 6L bolt-on 07 vette.

Jeremy Formato

Patrick G

iTrader: (14)

Very good info Jeremy. Should put to rest all doubts of the value of running a ported FAST vs a ported LS2 intake. Also shows the value of porting the LS7 intake. Good stuff!

JS

iTrader: (4)

Curious,On the LS2's from stock LS2 intake to your PORTED Fast?
Is this correct?

JeremyF

iTrader: (23)

Patrick- thank you its been a long time coming...I just never got around to posting up graphs.
JS- I do not have that dyno sheet posted it is however somewhere on the corvette forum the guys name is leon schlemmer. The LS2s are stk int manifold to a Ported LS2.

Most of these graphs were not completely optimized as I did much more tuning on them and picked up more power. They were just posted to illustrate the Comparison from stk manifold to ported. On some of the graphs it took me numerous runs to get out knock or dial in AFR or both. I have many more graphs that I need to get from other dynos I work at.
Jeremy Formato

JS

iTrader: (4)

That is amazing u picked up that kinda power once tuned with a Ported LS2..
Very impressive results...

Redlinez

iTrader: (5)

So 52rwhp gain from a tune and ported factory intake/tb on a new 427??

'02 WS6

iTrader: (73)

I have nowhere near the cubes of all those motors, but it is still nice to see some side-by-side comparos and the advantages of a larger TB/Intake!! I wish I had the funds for a ported 92/92!!

JeremyF

iTrader: (23)

Js you have a PM. I will be in Gettysburg soon.....it is a bit of a drive but should be worth it.
redlinez-I have done many Z06s and even if they have headers in the heat they are making about 425RWHP and 405RWTQ. On an ice cold pull they may make 450ish but that not how they are driven on the street. I try to keep the cars hot for fair runs. I typically quote this as a 40RWHP gain even though I can usually get about 50RWHP.
02Double- let me know when you have one and Ill be right here to port it!!
Jeremy Formato

The Dragon

iTrader: (6)

I attempted on several occasions last summer to get my FAST ported but, when it came down to it, your schedule was either too chaotic, you were to over-booked, or you just were not interested in porting my intake; to my dismay.

JeremyF

iTrader: (23)

I apologize for not being able to do your FAST. I believe there are a few reasons why I could not or would not. I do not recall if you had the direct port on there or not at the time but that in itself is about an hr to take off let alone remove the intake from the vehicle, probably another hr w/ the DP on there, so lets just say we are going to have about 2.5 hrs at least to remove and put back on the intake and DP on an Fbody. It takes about 3hrs of my time to port the FAST manifold so now we are at about 5.5 hrs for your intake and then we would need to retune it prob about 1.5 hrs. We now have about 7hrs in the project for a job that will pay good maybe $550, even if the DP was not on there it would have been about 5hrs worth of work, best case scenario. If you are a business man lets think about this logically, In that time span in S FL I would be turning away at least 2 customers (that were probably deposit/appointment) customers that are paying $400 for a tune and $400 for intake and TB install $800 in 3 hrs. I would be turning away up to $1050 in that time frame. I am sure that I gave you the option to send me the FAST and I would port it.
Well the offer is still on the table. If you pull the intake I will port it, If I get it in the next week I will pull all the DP stuff off of it no charge to make you happy . I can retune the car the next time I am in S FL or you can have it done elswhere. It is about an 35min off and 35 min on if I recall on the other DP FASTs that I have done.
On another occasion I believe I didn't have my porting tools to do the job. I do have specific tools that I NEED to do the job without them I could not do the job.
This is a great deal for the work involved and still a very good deal for the $100 more that I typically charge.
My mail to address is:
19103 sun lake blvd
Lutz, FL 33558
I hope to help you out. I would like to make up for not taking the job at the time.
Thank you
Jeremy formato

ScreaminRedZ

iTrader: (3)

Good info! Thanks!

sschkade

iTrader: (7)

Thanks Jeremy, great post.

98camaroLS1M6

iTrader: (35)

Good comparison Jeremy.

LT194CamaroZ

iTrader: (15)

would like to see a difference from a LS6 to a ported LS2

JeremyF

iTrader: (23)

Here is another example. This was a completely optimized LS2 manifold/tune and then to a ported and tuned LSX/FAST set up. The number of pulls shown is due to continually pulling timing/tuning to optimize power.

This is a nice example of a comparison to a ported LS2 to a ported LSX.

smok'nZ

iTrader: (160)

X2....

JeremyF

iTrader: (23)

I honestly think that the LS6 is a better manifold all around even after porting. The runners are for the most part clean smooth and straight. The LS2 is a 3 piece manifold and the LS6 is a one piece, the Ls2 has many compramises in the runners and in the plenum. Even after porting there are limitations in the manifold that cannot be made right, just merely optimized.

I have never done an A-B test but I will say that I was making 456RWHP with my old HC (unported FAST) setup and I put in the LS2 intake and TB on my setup which was dynoed very frequently and lost 30RWHP and my throttle response went to the toilet. (This is what let to my current porting ventures.)
30RWHP is somewhat on par what one should be able to pick up from a STK LS2 manifold to a PORTED FAST on a stk HC setup. So w/ a hot HC setup .....
I know the LS2 has a larger TB and such but I honestly dont believe that is as much of a factor as many think.
I wish I could give more insight but testing is the only way to know.
Jeremy Formato