jet sizes
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On The Tree
Joined: Mar 2007
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jet sizes Hey guys was just wondering if any of you knew what the standard jets are in 650 dp at the moment i have 72 primaries and 76 secondaries the car does seem to be running rich and starts to hesitate when i floor it
thanks
thanks
TECH Regular
Joined: Aug 2008
Posts: 423
Likes: 21
stock 650 dp jetting is either 67 pri and 73 sec or 67 pri and 76 sec both have 6.5 power valve in the primary circuit. your hesitation is more than likely coming from improper accelerator pump adjustment. What is your combination. Maybe Me or someone on here can help you get it dialed in.
Beaudacious
Beaudacious
TECH Regular
Joined: Aug 2008
Posts: 423
Likes: 21
Id leave the secondary where they are at and always do your tuning on the primary to get it away from the traffic lights. Maybe start at 68 in the primary and do a plug check after a WOT test. 50cc pump will help as long as it is adjusted properly. I have a 5.3 bored to 5.7 in a 96 s10 and it has 650dp. carb setup:
69 pri
73 sec
4.5 hg powervalve in pri
none in sec
pink pump cam on 2nd screw hole front and 1st on rear
Edelbrock/MSD box curve 3 chip
crisp tune plugs greyish brown wicked throttle response
Beaudacious
69 pri
73 sec
4.5 hg powervalve in pri
none in sec
pink pump cam on 2nd screw hole front and 1st on rear
Edelbrock/MSD box curve 3 chip
crisp tune plugs greyish brown wicked throttle response
Beaudacious
