hydro boost mounting options

[ntsqd]

I was told, semi-frequently, by the guys who did that actual engine work at the shop that the biggest problem that those 351M engines had was very lazy (retarded) cam timing. If the timing chain set is replaced with one that allowed the cam, even the stock cam, to be dialed in or at least timed correctly that it woke them up significantly. Whether or not that will pass smog I don't know.

Fuel for the fire under 904: I thought my 130" WB '70 EB with H-B, GM front discs, and Exploder rears on 37's stopped rather amazingly considering. It got a bit better when I put 35's on it.

 

[papy]

Here we go...

This is on a 351M.

nice work! taking notes on this for my 79!

sure looks like the dodge diplomat MC emotoman talks about- cardone # 13-1860

any way you can locate a part number on your MC?

JP

 

[papy]

So you took the factory vacuum assist bracket, modified it so the HB unit would bolt to it. Offset it from the firewall so the HB rod doesn't need to be modified, as in off the shelf replacement is retained.

How far off the firewall is is the HB now? (Looking for a reference point)
Summit shows the PS pump is unavailable for order.
I did hit Rock auto and that specific HB Part# did not pop up, but a number of like numbers did, but they are not even close to what you have shown.

Very interested in this mod. I looked at an HB upgrade from one of the Bronco Vendors and the pricing pushed me away.
Other than having to drive this rather gutless 351M smog motor in CA, my biggest complaint would be having to plan my stops in advance with stock brakes and 33" tires.

google searched BRB-33 what was it used on and this came up

Primary Vehicle Compatibility
This booster is specifically designed for:

• 1999–2004 Ford F-250 Super Duty
• 1999–2004 Ford F-350 Super Duty
• 1999–2004 Ford F-450 Super Duty
• 1999–2004 Ford F-550 Super Duty [1, 2, 3]

when i JY picked my booster that i intended on using on my 79 everything i searched for this swap pointed to the 99-04 booster. even battle born brakes makes his kits based on this year range

JP

 

[904Bronco]

Yes, so the hb rod did not need adjusting and everything is off the shelf.

1 7/8" give or take, but that measurement is what worked in my truck with the hb I got. It's easy to connect the pushrod to the pedal and measure what you need.

That Motorcraft HB was available everywhere when I purchased it last year. I only got it at rock auto due to the hoses being so cheap there.

I think the hb kits that any vendor sells are expensive, if you can do the legwork (I've done the legwork for you) and bracket mod yourself. I was going to get a kit from battle born brakes as he has the cheapest prices I have seen. But I saved $300 and had the satisfaction of working this out myself. Plus I can get a cheap replacement hose at any parts house, if I ever need one. Same as the pump although it's a brand new Lares, so fingers crossed. And they are all brand name parts, his are from China.

The 351m with 3.73:1 rear in my crew cab scoots along pretty good and as fast as I can shift the old tired 4 banger. I have a 6r80 that I am going to put behind it, which will wake it up enough for me.

I've got a 98K mile 351M and a Tremec 4050 5-spd conversion with 4:11's in the pumpkins.

Yes, the 1999-2004 Superduty came up on my Google search as well, Thinking About ordering parts from Rock auto. Appreciated the part #'s for the hoses.

Assuming the PS pump from the same Superduty will work as well, if the Lares remains unavailable.


Papy, so Sorry to completely high jack your thread.

 

[BigB]

nice work! taking notes on this for my 79!

sure looks like the dodge diplomat MC emotoman talks about- cardone # 13-1860

any way you can locate a part number on your MC?

JP

Thanks.

Dodge diplomat sounds right.

 

[BigB]

I've got a 98K mile 351M and a Tremec 4050 5-spd conversion with 4:11's in the pumpkins.

Yes, the 1999-2004 Superduty came up on my Google search as well, Thinking About ordering parts from Rock auto. Appreciated the part #'s for the hoses.

Assuming the PS pump from the same Superduty will work as well, if the Lares remains unavailable.


Papy, so Sorry to completely high jack your thread.

No worries.

I'm surprised with the 5 speed and 4.11's that it doesn't scoot. You gotta remember it's a pretty heavy vehicle that it's punting down the road. I enjoy cruising in my CC or Bronco, if I want to go fast I take out a Torino.

You will be able to cross reference the Lares part #. Rock auto also has pretty good photos in the info tab so you should be able to clearly see if 1 pump has the same mounting holes or not. I thought it had all come from the same years truck but I guess it didn't. I didn't keep any of my notes seeing what I purchased worked.

 

[BigB]

I did a search for the Lares pump and sure enough it's out of stock. Could always call them and ask for re-stock times.

1 brand new one is on eBay for $198.

 

[ntsqd]

I dug into the Cardone m/c p/n, it has a Ø1.125" bore. With H-B that borders on being small. If you like a soft pedal it will be OK. If you prefer a firmer pedal you won't like it. I'm running a Ø1.25" bore m/c on both of my H-B equipped trucks and I like the firm pedal. Both have GM calipers on them. With the std. Ford calipers the pedal will be firmer than with the GM calipers, and softer with the T-Bird calipers.

With any given m/c bore size this is how the usual caliper options compare to each other in terms of pedal feel:
Ford Caliper: 2-7/8" Firmest
GM Caliper: 2-15/16" Middle
T-Bird Caliper: 3-3/32" Softest
Actual pedal feel is determined by the pedal ratio, the booster, and the m/c bore size.

 

[BigB]

I dug into the Cardone m/c p/n, it has a Ø1.125" bore. With H-B that borders on being small. If you like a soft pedal it will be OK. If you prefer a firmer pedal you won't like it. I'm running a Ø1.25" bore m/c on both of my H-B equipped trucks and I like the firm pedal. Both have GM calipers on them. With the std. Ford calipers the pedal will be firmer than with the GM calipers, and softer with the T-Bird calipers.

With any given m/c bore size this is how the usual caliper options compare to each other in terms of pedal feel:
Ford Caliper: 2-7/8" Firmest
GM Caliper: 2-15/16" Middle
T-Bird Caliper: 3-3/32" Softest
Actual pedal feel is determined by the pedal ratio, the booster, and the m/c bore size.

I'm not sure if your response is in regards to the setup I used?

If so it stops great and the pedal is perfect for me. It's firmer than my 2010 Dodge Ram and a 100% upgrade from the stock config. May be an issue with Bronco sized brakes but the F250 brakes are fine. Everyone is different though and a m/c is cheap and easy to swap out.

 

[toddz69]

I dug into the Cardone m/c p/n, it has a Ø1.125" bore. With H-B that borders on being small. If you like a soft pedal it will be OK. If you prefer a firmer pedal you won't like it. I'm running a Ø1.25" bore m/c on both of my H-B equipped trucks and I like the firm pedal. Both have GM calipers on them. With the std. Ford calipers the pedal will be firmer than with the GM calipers, and softer with the T-Bird calipers.

With any given m/c bore size this is how the usual caliper options compare to each other in terms of pedal feel:
Ford Caliper: 2-7/8" Firmest
GM Caliper: 2-15/16" Middle
T-Bird Caliper: 3-3/32" Softest
Actual pedal feel is determined by the pedal ratio, the booster, and the m/c bore size.

I'll second the recommendation for the 1.25" bore master cylinder. I ran the 1.125" Dodge master for about 25 years and always recommended it but knew its shortcomings (the brakes were a bit touchy). I finally swapped to a 1.25" bore Dodge (98 Ram 1500 is an application) and I like the pedal feel and pedal height better. Of course the bore's applicability is dependent on what brakes you're running.

Todd Z.

 

[ntsqd]

I'm not sure if your response is in regards to the setup I used?

If so it stops great and the pedal is perfect for me. It's firmer than my 2010 Dodge Ram and a 100% upgrade from the stock config. May be an issue with Bronco sized brakes but the F250 brakes are fine. Everyone is different though and a m/c is cheap and easy to swap out.

Brakes are highly subjective. It's not a question of how well the brakes work, it's a question of how the pedal feels. Too soft and it doesn't inspire confidence in me. Others may like it just fine. I'm making no judgement, only pointing out the options.

I found that the Ø1.125" M/C's, when used with an H-B unit and the GM calipers to have a soft pedal. As I recall this is with a pedal ratio that is lower than an EB's, which should have made it firmer feeling. Too soft for me as it was not confidence inspiring, and I quickly moved to a Ø1.25" bore m/c.

 

[papy]

I've got a 98K mile 351M and a Tremec 4050 5-spd conversion with 4:11's in the pumpkins.

Yes, the 1999-2004 Superduty came up on my Google search as well, Thinking About ordering parts from Rock auto. Appreciated the part #'s for the hoses.

Assuming the PS pump from the same Superduty will work as well, if the Lares remains unavailable.


Papy, so Sorry to completely high jack your thread.

no worries -i am planning the same swap for my 79

JP