Here is a Economical Way to Swap out Power Brakes to Manual for Drag Racing Applications with out spending a lot Money..FYI
I did a lot of research and found out a few things that has got me very close to getting everything needed to do this conversion.I was able to get the firewall plate from MasterPower,LLC.I saw others that were like it for $120 bucks,fancy ones for people with tons of money to waste,go to this website:
www.mpbrakes.com/ here is there phone #1888.351.8785,there website is almost useless as its so hard to find things on it.You will need to order Part#AD2732K this is the booster adapter plate with hardware,it is only $21.95,big difference from the $120 from Willwood.You will need a new push rod as the stock power brake one is to short to work,I ordered a longer push rod,9"to make sure it would be long enough.Part#PRBL9 for $12.95,and you will need a push rod eyelet that screws onto the push rod that is cut down for BM1302(that is the stock 3/8" diameter stud) on the end so it will fit on the factory stud that is on your brake pedal.Part#PR101 for $4.95.I then went to Advantage Auto Parts and had them look up a master cylinder for a 82' S10 that they said did not exist?Well after about 1 hour of searching by a incompetent sales person,low and behold "wow your right sir" and purchased it part#10-1905 for $34.99.One thing I didn't like about the master cylinder is that the dimpled place where the push rod from the brake pedal pushes on it is not very deep at all,just enough to mate it to the rod,so as you will see in this link you have to make a "holder" for the push rod as for it not to fall down out of its center position.I will be doing the whole system on mine in a few weeks and I'm sure it will all work out with a little adjustments here and there.Yes the s10 wheel cylinders will make a big difference in the amount of pressure compared to stock ones.I have a narrowed 12 bolt and front disc brakes so I wasn't able to utilize those but I have read they are a super upgrade.All in all I have about $90 BUCKS in the complete conversion,hell that's $30 cheaper than TRZ MOTORSPORTS wanted just for the adapter plate and I got it all NEW! Hope this all helps you and others out there and saves others money as it did me.Just leaves more money to spend where it should be. Have a great weekend.
Jason
here is the link to others who have done it this way.Hope this helps others out.
http://www.maliburacing.com/manual_brake_conversion.htm Shocked