I thought I would take a moment and update this thread as it's been a few months since the initial install and the base tune. Because of a busy year end schedule I didn’t had much time to mess with, or drive, the car.

After things settled down Sam and I touched bases and we decided it was time to start upping power into the car. I wanted to get some baseline data so I drove the car. The combination Sam has put together with SRM, Kline, and Cobb is nothing short of remarkable. The car drives so well it’s easy to forget that it’s modified. The only reminder, unless you give it some throttle, is the authoritative note of the Kline exhaust.

After getting some baseline data I uploaded the new tune and went for a drive. I was expecting the car to come unglued and to my disappointment it didn’t feel much different. I sent a message to Sam along with the data. We chatted for a bit and decided that it must be a boost leak. There was a smoke test done earlier and there was no evidence of a leak. To humor Sam, I hooked up the compressor, set the regulator to 20psig, and sure enough there was audible hissing! Mine is a 26K mile virgin car and it had boost leaks. The most notable of which was the pinhole in the factory Y pipe casting. I decided it would be good to check the wastegates since I was under the car. I set the regulator to 13.5 psi and the wastegates flew open. I adjusted the preload so the gates are just starting to crack at 13.5 psi. All this time the car has barely been breathing and it still felt a whole lot better than it did stock while still driving like it was stock. I can’t stress enough just how I impressed I am with combination of parts from Sam, Kline, Cobb, and SRM!

I ran out of time to test drive the car tonight but as soon as I do I’ll keep the thread updated. I’m curious to see just how much these fixes will wake the car up.

For those of you that made it this far, I can’t stress enough how important it is to do a proper pressure check. It’s amazing how many potential areas there are from which boost can leak.

 

Thanks bud. Another great friendship doing this stuff! Definitely another proof that no cars air tight until you make it air tight. Another thanks to Mitch and Cobb for the support with some new tinkering. Can't wait to get it where you can teach your FBO GTR friends a lesson soon!

 

650 crank hp will come out to somewhere around 550whp?

 

All depends on the dyno. Most tried and true 650/700 kits make about 520-580awhp on a mustang

 

Nice yeah

 

These 1668 turbos sound really really good turbos... How much more lag/response are the K24 version compared to this and what power output?

Really think the 1668 is the way to go and can't wait to hear more on this thread! Congrats on the build

 

Cheers. They are quite nice and have a V8 feel. These sit right next to an A2868 (same wheel) all day to 650/700 crank (then the TiAL Alpha turbine starts to shine). On the 24's we have the same wheel or even the 2471 SRM set up which pulls like a freight train up to 1000hp! Something to meet all goals.

 

Guys I must say you can never go wrong with Sam he is a true gentleman and he knows his stuff about this cars, I did everything he advised me to do and let me tell you my car pulls like a freight train, the Horse power on the dyno was 575 rear wheel HP that is roughly around 675 crank HP. Button line is Sam is a honest and super nice individual to deal with.

 

Hey guys, I thought I would update this thread. The car has been pretty well dialed in for the better part of the year. I decided to stay on the conservative side so the AFR's are a bit on the rich side and boost level was capped at 1.3bar. On 100 octane and a somewhat lousy DA the car went 12.0@127.8 with a spectacularly lousy 2.0 60 ft. Clearly I can't launch the car to save my life, it either bogs or spins. There's more power in the car but at it's current setting I am very happy with it. I've never done any 60-130 runs and don't really have any frame of reference. The logical next step would be to add inlet pipes but I have no desire to yank the engine out or add any more power. The car is a slingshot from a stoplight and has a very predictable powerband. It's a great all around car that does everything reasonably well.

I recently picked up a 997.1TT so I haven't been driving the 996 a whole lot. The 997 has headers, exhaust, and a tune and still the 996 would undoubtedly punish it in a drag race.

 

I have almost the same set up from Sam, minus the injectors. I pull on my buddy with a 591whp B5 S4 and my other buddy with a 600ish whp F80 M3. Sam is the man and these 1668s are solid. Im going to do a clutch this winter to be safe(no slip at all currently), then Ill do the injectors and few other mods, because racecar. Haha

 

to put it in perspective, i need to go verify the slips, but I ran a 12.01 @118 i think with kline and a UMW tune, so your MPH is UP there.

It's funny I came across this thread as I'm thinking about going with the EXACT same mods with Sam.

 

You have interesting timing because the crack pipe just got loaded again

Haha here if you need me buddy. If you're interested in your car not being down there is a set of the A1668's ready you can exchange.

 

does that cut down that 4-5 day time frame you gave me?...