[Smokin19]

Originally Posted by 2023_ZL1-AUTO

Mike can chime if he wants! But, Mike and I literally had this discussion yesterday and I have a quote in my hands and I'm still debating what to do. But, the most Mike feels adding a complete cam package including lifters, springs, push rods and all the other needs items would get the car to 850rwhp. Thus, it would only add an additional 75rwhp more horsepower. So, I could be at 850rwhp, trap 140mph+ and be in the low 9 seconds in the 1/4 mile. But, at that point the stock LT4 blower is holding the power back. The CAM package install would add an additional week to the build time, so that's not a big deal. But, the price is a bit steep and only getting an additional 75rwhp. At that point, I'm not sure I shouldn't just wait until this fall and do the rest of what's needed for a full Katech Stage 4 package that includes a Magnuson 2650. Then the LT4 blower is no longer the limiting factor.

Thanks for the insight. Understand the money vs power issue. Can't imagine more than what I have on the street with traction being a factor. By the way I am running stock heads, vlv's and new springs, lifters, rods. Of course if you are tracking the car can't wait to see your times. Good luck going forward sounds like a winner.

[Katech_Mike]

Originally Posted by clg82

Every dyno shop is saying that these days to impress the customer when they pick it up..........kidding.....sort of.............can't wait to see the final numbers.

There are some out there that are quite the contrary and post numbers that as asininely high. You can always tell from the baseline. When stock LT4 cars make 580RWHP you know its "fairy power" as we call it.

[Smokin19]

Originally Posted by Katech_Mike

There are some out there that are quite the contrary and post numbers that as asininely high. You can always tell from the baseline. When stock LT4 cars make 580RWHP you know its "fairy power" as we call it.

Mike, what is your take on the % of change between Mustang and Dynojet tune numbers?

[Katech_Mike]

Originally Posted by Smokin19

Mike, what is your take on the % of change between Mustang and Dynojet tune numbers?

Having a baseline is all that matters. They all read differently.

Run on the same dyno before and after mods to measure the actual gain.

[2023_ZL1-AUTO]

Originally Posted by Smokin19

Mike, what is your take on the % of change between Mustang and Dynojet tune numbers?

I found this here:

https://www.camaro6.com/forums/showthread.php?t=585756

[2023_ZL1-AUTO]

Update: Received my Baseline Dyno from Mike just now! On around E15 and with it running out of fuel pressure around 5600 RPM (It's dropping between 400psi to 600psi below command), here are the results !!! I know there is probably some level of belt slippage, I have a stock length green belt installed. After getting my blower back from Kong after the X-ported was done and the 2.3 upper was installed. I was unable to get the smaller green belt installed. Probably due to the FI Interchillers block plates I installed as these raise the blower about a 1/4 higher.

THANKS MIKE !!!

[Megahurtz]

dropping from 400psi to 600psi?

[SOCAL.M6.ZLE]

Originally Posted by 2023_ZL1-AUTO

Update: Received my Baseline Dyno from Mike just now! On around E15 and with it running out of fuel pressure around 5600 RPM (It's dropping about 400psi to 600psi), here are the results !!! I know there is probably some level of belt slippage. I know I installed the wrong length green belt after the 2.3 upper was installed. The current green belt is the same length as stock, but it was the only one I could get on by myself.

THANKS MIKE !!!

Looks like a whole lot of belt slip to me!
Good news, she is in good hands now!

[2023_ZL1-AUTO]

Originally Posted by Megahurtz

dropping from 400psi to 600psi?

So that should have read... fuel pressure is dropping between 400psi to 600psi below command at top.