Racingjunk Forums

Racingjunk Forums (https://www.racingjunk.com/forums/index.php)
-   Engine Tech (https://www.racingjunk.com/forums/forumdisplay.php?f=9)
-   -   More power needed from my ZZ4 Fastburn (https://www.racingjunk.com/forums/showthread.php?t=26319)

DirkaDirka 11-12-2009 03:27 PM

Hey Monte he is at 7000 at the 1/4 mi mark

FullTimeRacing 11-12-2009 03:33 PM


Originally Posted by signsbyesa
what does "zz" & "4" stand for? :shock:

ZZ4 is a crate motor from GM

FullTimeRacing 11-12-2009 03:34 PM


Originally Posted by DirkaDirka
Hey Monte he is at 7000 at the 1/4 mi mark

I missed that part,thanks

FullTimeRacing 11-12-2009 03:42 PM

Aktroop,post the times on the slip.

60" 330" 660" 1000" 1/4 mile

with a 4.10 gear you will be in the power curve in steed of over reving.

6500 should me max RPM

TheYellaBrick 11-12-2009 03:45 PM

Do you have a posi in it now, or are you one legging it ?

ANY major gain of HP will be in the heads and supporting staff.
Minor, low dollar gains are going to be many small things working together.

aktroop 11-12-2009 03:54 PM

Yeah I think your right. I guess I should worry about hooking up the power I have instead of making more powere right.

DirkaDirka 11-12-2009 03:59 PM


Originally Posted by aktroop
Yeah I think your right. I guess I should worry about hooking up the power I have instead of making more powere right.

Not saying to not get more power out of the motor.

You can do small upgrades to the motor as well as the suspension if the money allows it.

aktroop 11-12-2009 04:03 PM

We run 1/4 mile
I have 4:88 with mini spool
9" slicks
4500 stall
350 auto trans

Hey guys, thanks for all the help!! Keep it coming. I just got off the phone with a friend of mine who suggested checking the pinion angle and shaving the heads. What do you guys think?

DirkaDirka 11-12-2009 04:08 PM

I think that shaving the heads will get a lil more compression out of it. I dont know what the pinion angle would have to do with it.

See the rear springs actually twist or flex when you launch. That right there actaully changes the angle on the rearend. The harder you hit the stock rear springs run the risk of actually bending the spring or breaking a mount to the spring , or even breaking the spring too depending on how old they are.

aktroop 11-12-2009 04:09 PM

We run 1/4 mile
My RPM is consitantly 7,000 at the line
4500 stall
350 auto trans
4:88 gear with mini spool

I just got off the phone with my friend who suggested shaving the heads and checking the pinion angle. He said the pinion angle may be causing it to spin so much off the line.

Thanks,
aktroop


All times are GMT -8. The time now is 04:15 PM.