[2002blgt]

Just thought I would share what I get to tune in a couple weeks , I put a start up tune on it Saturday so the FR500 cams can get broke in and drive it around to seat the rings before we put it on the dyno








Alot of work has went into this , and guy wants to see if one of the magazines wants to do an article on it

[oneredstang]

wtf is the chrome on the bumper for?

[cougarnut281]

It's a shame you have a stock blower on it. That thing would make some huge power with more airflow.

[2002blgt]

It's a shame you have a stock blower on it. That thing would make some huge power with more airflow.

You were exactly right

well we finally got it on the dyno today , we got a baseline tune on it so he can drive it more to bring the engine in , the rings have not seated yet so we may get more aggressive with the tune in a few weeks






It fell way short of 600 and even short of 500 by a good bit , I have no doubt with more aggressive tuning , porting the blower and better elbow for the TB that we could get closer to 500 but I think the biggest problem is the 03-04 cobra blower is too small for the 5.4 and DOHC heads , this thing is making close to GT500 torque numbers but the HP is low because the boost is dropping off after 4300 rpms from 15 down to 10 , oh and by the way , if anybody does this swap the IAC valve goes on as pictured in this picture

429 RWHP 509 RWTQ

[2002blgt]

Update to this , had oil burning issue so owner tore it down , he bought engine already put together but was supposedly just put together , so he went ahead and put it in the car without tearing it completely down , well after tearing it down 6 pistons were not even sealing the rings and 1 adjustable cam gear had came loose knocking one bank out of time , so back to stock cam gears but degreed properly

so here is the updated dyno graph on 10 psi of boost , which now we have to figure out why its not boosting to 15 as it did before , but regardless , running 5 psi less boost and still picked up power and alot of it