Early Sentra B11 rally car!

blownb310 · 10-05-2006, 08:56 PM

Hey everyone,

Ever see a B11 outrunning VR6 Golfs and chasing VTEC Hondas before?

Check out these pics of my B11 race car slinging the dirt at a wheel to wheel [european style] rallycross a few weeks ago.

I have been running my B11 race car in rallycross events over the last few months. I found that the stock parking brake is not very good at locking the rear wheels at speed for flying handbrake turns. So I hand built this hydraulic system to replace the factory unit and the old crusty cables. This idea is not original. It is pretty much standard issue in a performance rally car.

I built it out of a Datsun 210 clutch master cylinder [5/8" bore]. It is plumbed into the car by splicing it into the rear brake lines. I removed the plastic fluid reservior and drilled and tapped the inlet port to 1/8" pipe thread to accept the front portion of the [feed] brake line I cut at mid car. The outlet [pressure] side of the clutch master goes back into the other side of the original rear brake lines back to the rear wheels. For the box, I cut and welded together two Datsun steel wheel chocks [that came in the trunk of all Datsuns for use when changing to the spare], and the chrome handle is from the seat post of a parts bicylcle I had in my shed. I got the rubber grip from an old scooter my son no longer uses.

As I mentioned above, the system is plumbed inline with the stock rear brake lines and does not effect how the stock system works at all. When you need to lock the rear wheels quickly and easily to negotiate a tight hairpin turn, you simply yank the lever and let it go again. This sends pressure to the rear wheels only. What's nice is that there's no way to accidently have it stay locked on when you release it [like you could if you forgot to hold the button in with the stock ratcheting system on the original hand brake lever]. Sure beats the old rusty cables that hardly worked in the summer and froze in the winter.

John@ProStreet · 10-05-2006, 10:27 PM

Interesting setup, we have quite a bit of rally history here at Pro Street, what level are you racing in? Is this in NY? Give us some more history and details!

phast · 10-06-2006, 10:07 AM

looks fun

Quik · 10-07-2006, 03:12 PM

Very interesting rear hydro "upgrade" keep up the good work. Any other pictures to share?

10-05-2006, 08:56 PM	#1
blownb310 Jr Pro Street Member '89 Sentra 4WD My Page \| My Pics \| My Ads Join Date: Oct 2006 Location: Albany, NY Posts: 21	Early Sentra B11 rally car! Hey everyone, Ever see a B11 outrunning VR6 Golfs and chasing VTEC Hondas before? Check out these pics of my B11 race car slinging the dirt at a wheel to wheel [european style] rallycross a few weeks ago. I have been running my B11 race car in rallycross events over the last few months. I found that the stock parking brake is not very good at locking the rear wheels at speed for flying handbrake turns. So I hand built this hydraulic system to replace the factory unit and the old crusty cables. This idea is not original. It is pretty much standard issue in a performance rally car. I built it out of a Datsun 210 clutch master cylinder [5/8" bore]. It is plumbed into the car by splicing it into the rear brake lines. I removed the plastic fluid reservior and drilled and tapped the inlet port to 1/8" pipe thread to accept the front portion of the [feed] brake line I cut at mid car. The outlet [pressure] side of the clutch master goes back into the other side of the original rear brake lines back to the rear wheels. For the box, I cut and welded together two Datsun steel wheel chocks [that came in the trunk of all Datsuns for use when changing to the spare], and the chrome handle is from the seat post of a parts bicylcle I had in my shed. I got the rubber grip from an old scooter my son no longer uses. As I mentioned above, the system is plumbed inline with the stock rear brake lines and does not effect how the stock system works at all. When you need to lock the rear wheels quickly and easily to negotiate a tight hairpin turn, you simply yank the lever and let it go again. This sends pressure to the rear wheels only. What's nice is that there's no way to accidently have it stay locked on when you release it [like you could if you forgot to hold the button in with the stock ratcheting system on the original hand brake lever]. Sure beats the old rusty cables that hardly worked in the summer and froze in the winter. __________________ '77 B210 1608cc A-series '81 210 Rally car project '86 B11 Ice race/rally car '89 B12 4WD wagon GA16DET '93 SE-R

10-05-2006, 10:27 PM	#2
John@ProStreet Super Moderator 2008 Corvette Z06 My Page \| My Pics \| My Ads Join Date: Oct 2006 Location: FIT Posts: 660	Interesting setup, we have quite a bit of rally history here at Pro Street, what level are you racing in? Is this in NY? Give us some more history and details! __________________ Pro Street Motorsports www.prostreetonline.com Ultimate Street Car??? Pro Street goes to SEMA

10-06-2006, 10:07 AM	#3
phast Pro Street Member S13 My Page \| My Pics \| My Ads Join Date: Oct 2006 Posts: 30	looks fun __________________ 93 240SX Red Top SR20 60 trim t3/t4 some other stuph i cant remember :P

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10-07-2006, 03:12 PM	#4
Quik Super Moderator 97 Anniversary MKIV My Page \| My Pics \| My Ads Join Date: Oct 2006 Location: Northern California Posts: 304	Very interesting rear hydro "upgrade" keep up the good work. Any other pictures to share?