Back from the tuner!!

[Jsparks]

Well I got her back today and drove it about 300 miles down from up north.

Unbelievable!!! I had a smile on my face for about 3 hours!

I will post the dyno sheet when I get in the office on Monday. It made 700hp (dynojet) and 620ft/lb on a pretty conservative tune.

 

[ROCKET62]

Nice numbers. What did they do to fix the low boost issue?

Also ......

.

 

[Jsparks]

It was a combination of the blow-off hanging up and the belt slip. Looking at the graph there is a little dip about about 5700rmp in the boost.

Ed really didn't like the paxton fmu and pumps. He said it wasn't very repeatable so hard to tune.

Talking to Ed in length and will be ditching the paxton fuel set-up and going with an additional in tank pump and bigger injectors and 12lb pulley. If I have to cap the rpms at 5500-5600 so I don't run out of fuel I will do so in order to gain all that mid-range "drivable" boost.

 

[KenricGTS]

Hope you have a built bottom end to handle 12psi of boost. I would be weary of the stock cast pistons with that boost.

 

[Jsparks]

Hope you have a built bottom end to handle 12psi of boost. I would be weary of the stock cast pistons with that boost.

It would never make 12lb of boost...the rpms would be cut-off to soon. It would make a lot more boost throughout the entire curve though

 

[Fast Too]

Note to self (and your tuner). Remove that piece of junk PCV valve Paxton sends with their kit, cap the manifold inlet, and tee the valve cover vent hoses together and run them to a catch can. My boost shot to 9.6 lbs after doing that this last Friday on the dyno. Doing this may save you some big bucks on purchasing and installing that 12 lb pulley you intend to put in. The fuel system upgrades you plan (the in-tank pump and injectors) go for it.

 

[johnk]

Fast too, any chance on getting a close-up pic of your PVC mod and catch can mod? Thanks!

 

[PJJP]

I would like to see that mod as well. Please post some pics.

 

[ILLSMOQ]

...MikeR has the "crank vent" billet pcv valve from dc performance that thing lets nothing get by......I'm running a catch can like Fast. Mike has seen over 9PSI and so have I.