# Newman's 1986 BMW 326rb build thread. **URL:** \ **Category:** Builds\ **Created:** [December 25, 2006, 8:54pm UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123 "2006-12-25T20:54:54Z")\ **Posts on this page:** 20\ **Page:** 154
**Author:** ![bpipe95](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bpipe95/32/7294_2.png) [@bpipe95](https://forums.speedlife.net/u/bpipe95)\ **Post date:** [February 4, 2010, 9:02am UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3061 "2010-02-04T09:02:45Z")
white swaintec would go with the hello kitty theme… ---
**Author:** ![Carnut](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/carnut/32/7590_2.png) [@Carnut](https://forums.speedlife.net/u/Carnut)\ **Post date:** [February 4, 2010, 9:04am UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3062 "2010-02-04T09:04:21Z")
> [@bpipe95](#): > > white swaintec would go with the hello kitty theme… Swaintech cracks on thin wall stainless due to the thermal expansion. ---
**Author:** ![Shockwave179](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/shockwave179/32/7496_2.png) [@Shockwave179](https://forums.speedlife.net/u/Shockwave179)\ **Post date:** [February 4, 2010, 9:06am UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3063 "2010-02-04T09:06:29Z")
> [@newman](#): > > I am planning on using a lebanese tune for 98RON 🤣 ---
**Author:** ![newman](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/newman/32/7569_2.png) [@newman](https://forums.speedlife.net/u/newman)\ **Post date:** [February 4, 2010, 9:23am UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3064 "2010-02-04T09:23:32Z")
> [@Carnut](#): > > I would have it all coated first. The stuff on the skyline was coated and it got hot enough to melt some wiring… Not that there is much real estate to work with in there but yeah. Heat coating and wrap is a great idea on top of shielding or wrapping for crucial areas and harnesses. Check the heat shield product that APS uses in their kits that stuff rocks. > > Id be concerned about the additional heat that will be introduced to the already warm brake fluid. When I coat it, I want to coat everything. I want to see if there are any issues with the manifold before I do that, so I will wrap the DP for the time being, then down the road I can remove the manifold and coat it. ---
**Author:** ![Carnut](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/carnut/32/7590_2.png) [@Carnut](https://forums.speedlife.net/u/Carnut)\ **Post date:** [February 4, 2010, 9:48am UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3065 "2010-02-04T09:48:07Z")
> [@newman](#): > > When I coat it, I want to coat everything. I want to see if there are any issues with the manifold before I do that, so I will wrap the DP for the time being, then down the road I can remove the manifold and coat it. Understandable. ---
**Author:** ![Z28pr0jekt](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/z28pr0jekt/32/5393_2.png) [@Z28pr0jekt](https://forums.speedlife.net/u/Z28pr0jekt)\ **Post date:** [February 4, 2010, 10:28am UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3066 "2010-02-04T10:28:32Z")
> [@Anonymity](#): > > why do u need power brakes? This haha… the car is light ---
**Author:** ![newman](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/newman/32/7569_2.png) [@newman](https://forums.speedlife.net/u/newman)\ **Post date:** [February 4, 2010, 10:39am UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3067 "2010-02-04T10:39:02Z")
> [@Z28pr0jekt](#): > > This haha… the car is light Because If I wanted to convert to manual brakes I need to change the lever ratio of my pedal… It’s easier to use power brakes. It’s not like you can just delete the booster. Doesn’t work like that. Ask juicedZ4 ---
**Author:** ![TRP951](https://avatars.discourse-cdn.com/v4/letter/t/b77776/32.png) [@TRP951](https://forums.speedlife.net/u/TRP951)\ **Post date:** [February 4, 2010, 10:47am UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3068 "2010-02-04T10:47:12Z")
I have some ceramic heatshielding with aluminum backing that can go on 2000F direct contact if you need some ---
**Author:** ![turbociv](https://avatars.discourse-cdn.com/v4/letter/t/dfb087/32.png) [@turbociv](https://forums.speedlife.net/u/turbociv)\ **Post date:** [February 4, 2010, 11:08am UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3069 "2010-02-04T11:08:23Z")
> [@newman](#): > > Because If I wanted to convert to manual brakes I need to change the lever ratio of my pedal… It’s easier to use power brakes. It’s not like you can just delete the booster. Doesn’t work like that. > > Ask juicedZ4 summit sells manual brake kits that cater to different pedal ratios. this one is currently being used in a e30 i know of on bimmerforums. > **[Wilwood Disc Brakes 260-5920 Wilwood Combination Remote Master Cylinders |...](https://www.summitracing.com/parts/WIL-260-5920/)** > > Free Shipping - Wilwood Combination Remote Master Cylinders with qualifying orders of $109. Shop Master Cylinders at Summit Racing. 5/8 is too small with pedal travel almost to the floor and 7/8 is too large so find something inbetween and you will prolly be happy. ---
**Author:** ![Karter](https://avatars.discourse-cdn.com/v4/letter/k/e480ec/32.png) [@Karter](https://forums.speedlife.net/u/Karter)\ **Post date:** [February 4, 2010, 11:20am UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3070 "2010-02-04T11:20:14Z")
> [@newman](#): > > Because If I wanted to convert to manual brakes I need to change the lever ratio of my pedal… It’s easier to use power brakes. It’s not like you can just delete the booster. Doesn’t work like that. > > Ask juicedZ4 actually, you can just remove the booster, but the brakes will suck. my first oval track car was that way, bent the pedal trying to stop. good times. ---
**Author:** ![newman](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/newman/32/7569_2.png) [@newman](https://forums.speedlife.net/u/newman)\ **Post date:** [February 4, 2010, 11:23am UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3071 "2010-02-04T11:23:31Z")
> [@turbociv](#): > > summit sells manual brake kits that cater to different pedal ratios. > > this one is currently being used in a e30 i know of on bimmerforums. > > [Wilwood Disc Brakes 260-5920 Wilwood Combination Remote Master Cylinders | Summit Racing](http://www.summitracing.com/parts/WIL-260-5920/) > > 5/8 is too small with pedal travel almost to the floor and 7/8 is too large so find something inbetween and you will prolly be happy. But I also have a lot of volume to move, as I’m not on stock brakes… ---
**Author:** ![juicedz4](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/juicedz4/32/5051_2.png) [@juicedz4](https://forums.speedlife.net/u/juicedz4)\ **Post date:** [February 4, 2010, 11:33am UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3072 "2010-02-04T11:33:05Z")
Ya, you would need to change the pedal ratio from what Im guessing is 4 or 4.5:1 up to 6.5:1 or 6.75:1. Then mount the master cylinder up higher (which is a pain to get the pushrod angles right). Im guessing you would need either a 7/8" at the very min, or 1" master to get the pressure you need (figure 1200psi for “emergency” braking) and the volume you need with all those pesky pistons. It would simplify things in the bay some, and would give more consistent braking as there is no vacuum to vary the pressure applied, but its certainly a bit of work to do. Maybee if you start melting boosters, even with wrap, coating, and a heat shield, you might need to consider it. Dan ---
**Author:** ![Z28pr0jekt](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/z28pr0jekt/32/5393_2.png) [@Z28pr0jekt](https://forums.speedlife.net/u/Z28pr0jekt)\ **Post date:** [February 4, 2010, 11:44am UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3073 "2010-02-04T11:44:53Z")
Yea I understand the ratio needs to be changed, I didn’t realize it would need to be so intricate for that car. For fbodies it’s as simple as a manual master and drill a hole 1 inch above the stock mounting point on the brake lever and remount it. ---
**Author:** ![Anonymity](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/anonymity/32/7215_2.png) [@Anonymity](https://forums.speedlife.net/u/Anonymity)\ **Post date:** [February 4, 2010, 11:48am UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3074 "2010-02-04T11:48:53Z")
I agree with you, it is what it is. I wil not convince you what you should do. It is almost a waste of time for me to type this, but i have a few min before a meeting… i understand, you have already change the whole braking system logic with the change of the big brake kit, and wheel and tire combo. Was this the size the [http://www.stanscycle.com/bmw-master-cylinder.html](http://www.stanscycle.com/bmw-master-cylinder.html) that would make it a 20.64mm MC and u have upgraded to a 25.4mm MC. So in this you have changed everything and kept the old pedal ratio. > Pedal ratio is the ratio of leverage you brake pedal applies to the master cylinder. will it stop = yes will the pedal ratio matter = no will you change it = only if you have to but other wise good job. alot of hard work, i hope it pays off in the 1st ride. ---
**Author:** ![juicedz4](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/juicedz4/32/5051_2.png) [@juicedz4](https://forums.speedlife.net/u/juicedz4)\ **Post date:** [February 4, 2010, 11:52am UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3075 "2010-02-04T11:52:04Z")
It might not need to be, but I know on my Cavalier if I just changed the pedal ratio and mounted the master to the firewall, in place of the booster, the angles werent quite right, at least not equal change above and below perpendicular. It didnt need to shift by much, 1/4" or so, but it was a pain to measure etc. My booster was mounted at an angle, which probably limited the amount of master cylinder movement. If the E30 booster is moutned perpendicular to the firewall, the master cylinder position would need to be shifted even more. The last thing you want is a large side load on the master cylinder piston. For me I wanted it to have as even of an angle above and below perpendicular as possible. Also, if you dont source a purpose manual master, a pushrod retainer of some sort would need to be fab’d. Dan ---
**Author:** ![Anonymity](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/anonymity/32/7215_2.png) [@Anonymity](https://forums.speedlife.net/u/Anonymity)\ **Post date:** [February 4, 2010, 3:54pm UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3076 "2010-02-04T15:54:18Z")
> [@newman](#): > > Monday: > The last step, since the booster (and thus, the actuation shaft) moved OUTBOARD 1", the pedal needed to be modified. I don’t have a before picture, but perfectly enough, the OEM pedal actually had a 1" extension INBOARD. I simply cut this off and welded it back on @ 0" extension. > > ![http://img.photobucket.com/albums/v516/ctnewman2/brakes6.jpg](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/3X/e/8/e8f0ddc98ec611b7ca6e903e7511f7732209393c.jpeg) wait, didnt u all ready change the pedal ratio? ---
**Author:** ![travisn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/travisn/32/5046_2.png) [@travisn](https://forums.speedlife.net/u/travisn)\ **Post date:** [February 4, 2010, 3:57pm UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3077 "2010-02-04T15:57:37Z")
> [@Anonymity](#): > > wait, didnt u all ready change the pedal ratio? horizontal movement wont change the ratio, it would have to move towards or away from the folcrum vertically to change the ratio ---
**Author:** ![Carnut](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/carnut/32/7590_2.png) [@Carnut](https://forums.speedlife.net/u/Carnut)\ **Post date:** [February 4, 2010, 4:17pm UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3078 "2010-02-04T16:17:52Z")
Newman, make sure you face the fuel cell with the sump forward… ---
**Author:** ![Anonymity](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/anonymity/32/7215_2.png) [@Anonymity](https://forums.speedlife.net/u/Anonymity)\ **Post date:** [February 4, 2010, 4:58pm UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3079 "2010-02-04T16:58:45Z")
let me start by saying… the brakes will stop the car. i ❤ newman, and if i was building something i would be treated the same way.He is doing a great job and i hope he enjoys ever min of the car. but just reading the thread, everything in the system has been changed. the pedal ratio, booster, MC, BBK, wheels. You cant use pedal ratio, it is better to say " I dont want to do that - no reason, i just dont want to do it" > [@travisn](#): > > horizontal movement wont change the ratio, it would have to move towards or away from the folcrum vertically to change the ratio that is ~true, but the pedal and booster and MC, are all diffferent. > [@Carnut](#): > > Newman, make sure you face the fuel cell with the sump forward… b/c when ur at the track with the wheels off the ground f-body style with less then .5 gallon in the car it matters…:retard: ---
**Author:** ![travisn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/travisn/32/5046_2.png) [@travisn](https://forums.speedlife.net/u/travisn)\ **Post date:** [February 4, 2010, 5:53pm UTC](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/3080 "2010-02-04T17:53:26Z")
> [@Anonymity](#): > > that is ~true, but the pedal and booster and MC, are all diffferent. I was saying that in response to the picture quoted, not the whole system. [Previous page](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123.md?page=153) [Next page](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123.md?page=155)