New 408 blown build
05-11-2013, 12:57 AM
#21
Teching In
Thread Starter
Join Date: Mar 2013
Location: NE Arkansas
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
Been a while since an update but it's done. Taking it to the track tomorrow to see how it does. This is a video as of Monday nite. Pulley setup only makes about 3-4 lbs boost. Kind of went overkill on this build. Can't seem to hold it on the road in high gear as of now. Suspension next. 408 ls 4.0 whipple first fire up. - YouTube
05-12-2013, 07:19 PM
#23
Teching In
Thread Starter
Join Date: Mar 2013
Location: NE Arkansas
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
Well got the tune finished. Took it to an event yesterday. Ran very well major traction issues. Second pass about half track something happened to #5 cyl. Did a compression check this morning all are about 175psi number 5 is down to 155. Going to tear down and see what happened. As of now only thing I can think is maybe the intake o-ring might have failed. Wideband was on that bank and it was running high 10's to low 11's afr. Timing was only 14-15* wot. Had what we think to be a very safe and conservative tune in it. Well know more later. Will post links to vids shortly.
05-12-2013, 07:54 PM
#25
Teching In
Thread Starter
Join Date: Mar 2013
Location: NE Arkansas
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
05-29-2013, 11:33 PM
#30
Teching In
Thread Starter
Join Date: Mar 2013
Location: NE Arkansas
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
Well just thought Iwould give an update. I am a complete retard. I tore the motor down and didnt find a single thing wrong. I had an issue with my crankcase ventilation system. Anyhow got it fixed and will be going to the track this saturday. New slicks on the way. Little overkill for my truck. Anyhow here is a video of it idling as of now. Hope to have some decent track vids after this weekend.
408 lsx idle 4.0 whipple - YouTube
408 lsx idle 4.0 whipple - YouTube