Lateral-g Forums - Big problem with my power dyno numbers

Lateral-g Forums (https://www.lateral-g.net/forums/index.php)

- Open Discussion (https://www.lateral-g.net/forums/forumdisplay.php?f=14)

- - Big problem with my power dyno numbers (https://www.lateral-g.net/forums/showthread.php?t=10701)

Quote:

Originally Posted by TravisB

dont order boyds there quaity control sucks. I have a nice set of 18 and 20 in DP Engineering wheels I need to sell but thats probably bigger than you want

Hey Travis, I appreciate the offer, but yeah, I'm sticking with the 17-18 combo. It looks best on my car. ;)

Has any body checked to see if you are blowing threw the converter?

I've had several cars in here, that we've put prochargers on and not see any wheel numbers change do to converter slippage or just straight blown threw...

got a good a/f and no more power....i'd look to the drive line before getting to crittical on the motor.

Andy

Quote:

Originally Posted by mazspeed

Also I may have to order new wheels as the boyds came bent from the factory. The rears are not round and not true. So far, it is still driving me nuts.

PM me about your wheels...

Quote:

Originally Posted by Steve1968LS2

PM me about your wheels

You have a pm.

Quote:

Originally Posted by mazspeed

Also having a problem with the braking system. The hydroboost works, but when the car is going slow, and to a stop, the car slows down by itself. Kevin pulled the mater off and found that the master's shaft was too long for the unit and cannot be machined down as it's part of the unit, so I have to either ditch the hydroboost or get another master to work with it. I'm thinking about ditching the hydroboost as it's just a problematic POS.

Have Kevin machine a spacer and seal kit for it. IMO sounds like the wrong master.

Quote:

Originally Posted by Vince@MSperfab

Have Kevin machine a spacer and seal kit for it. IMO sounds like the wrong master.

Hey Vince, would that work? I was told that it might need a drum brake master for the hydroboost?

Quote:

Originally Posted by mazspeed

Hey Vince, would that work? I was told that it might need a drum brake master for the hydroboost?

Yep, that might be the case then. When you go master shopping you need the piston with the deep hole.

Quote:

Originally Posted by Vince@MSperfab

Y you need the piston with the deep hole.

One could take this the wrong way. :lol:

Quote:

Originally Posted by Vince@MSperfab

Yep, that might be the case then. When you go master shopping you need the piston with the deep hole.

Ok, Ill have too see. I hate to lose my master, but id rather lose the hydroboost. Ill run it buy them on Monday though. Thanks :thumbsup:

Now surely this cannot be a shallow hole / deep hole problem (Keep your mind out of the gutter now!). The brakes would not work if that was the case. It is possible but no likely the rod is a tiny bit to long for the hole (watch it now!). This is very easy to verify, when you put the master on, pushing it tight against the booster, if the master springs back at all, the rod is to long or the hole is too shallow (I know, happens to us all the time!). The quick test / fix is to put a couple washers between the master and booster to shim the master away a bit to see if this stops the problem. I doubt very seriously this is going to be the problem though as those guys surely know all this.

Another thing to check though that if could be is to make sure that at the retun line TEE for the hydrobbost / Power Steering, that the brake return side of the TEE is on the straight through side of that TEE. If the brake side is not on the straight side of the TEE, this could prevent the booster from returning fluid fast enough, and making the brakes feel a bit hung (Here we go again).