brake booster ra28

**bigmat** · 31-10-2007, 02:41 PM

guys i have to buy a new brake booster for ra28 and wondering if i should upgrade booster while im there.

currrent setup im looking at
r33 front calipers 4 spot
gz20 rear single spot

what i would like out of my breaking is good pedal feel eg solid and not to long a travel. i believe most new cars feel this way as my old bluebird is long and spongy with a new booster and master and it gives me the shits.

i have searched but nothing screams out to me. thanks.

**o_man_ra23** · 31-10-2007, 02:57 PM

Just use a standard booster, get a 1" master cylinder though. One of the supra MCs fit without much modification (bend a couple of brake lines a touch)

**Hash_ra23** · 31-10-2007, 05:40 PM

Yeh stock booster is fine, brake feel is changed by having a bigger master cylinder. Some reckon the 1inch MC makes the feel too bitey, and 15/16inch is the way to go.
Do a search, all the master cylinders have been talked about on here many times.

**o_man_ra23** · 31-10-2007, 07:28 PM

For the nissan 4 spots, you will likely want a 1"... find out what was on the car they came off, and see if you can have a drive of one to feel whether it was stiff enough, or too stiff. There are also laws on how much travel you need to have, so check the NCOP.

**bigmat** · 01-11-2007, 01:50 AM

cheers. i think i will take my mates r33 for a spin and see if i like. just reading some stuff on dual diaphragm set ups. does this give better pedal feel?

**twentyEight** · 02-11-2007, 02:52 PM

Originally Posted by o_man_ra23

For the nissan 4 spots, you will likely want a 1"... find out what was on the car they came off, and see if you can have a drive of one to feel whether it was stiff enough, or too stiff. There are also laws on how much travel you need to have, so check the NCOP.

I think the 15/16 MC should be a better match for the Nissan 4 spots, unless you're running the Nissan 2 spots (or similar) at the rear...

Joel (TurboRA28) is running the Mazda FC 4 Spots (which are almost identical to the Nissan ones) with a 1" MC, and he feels that it has too much bight and thinks he'd be better off with the 15/16 also...