Hydroboost M/C questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

6600DURAMAX · 03-12-2009, 02:56 PM

Ordered a hydroboost unit today and am looking for an aluminum m/c to go with it. I have found one from Pirate Jack that has a 1’’ bore. What is the difference between a 1’’ bore and a 1 1/8’’ bore??? (I know 1/8’’ haha). Should I be looking for a m/c with a 1 1/8’’ bore??? Has anyone run an aluminum m/c from these guys they seem cheap on the price and have good customer service. They also have the alumiunum proportioning valve for disc/disc that I will order.

Any thoughts guys

thanks

6600DURAMAX · 03-12-2009, 09:30 PM

Nothing guys??

MickMc · 03-13-2009, 02:43 AM

Ordered from who?

Link?

Mick

petey-pablo · 03-13-2009, 03:13 AM

I am guessing these guys--> http://www.piratejack.net/

6600DURAMAX · 03-13-2009, 07:37 AM

All I really need to know it what is the difference or advantage in running a m/c with a 1 1/8'' bore vs. a 1'' bore.

Yes, that is the correct site I am going to order my m/c and proportioning vavle from

**jaros44sr** · 03-13-2009, 08:05 AM

They offer a 1 1/8" bore in different styles...then why use a 1" bore, I suppose the bigger bore would give you more volume

Thanks for the site, nice stuff

gcburdic · 03-13-2009, 08:55 AM

They are close to me!!!....great customer service too....had a leaking prop valve, called them they sent me a new one and told me to return the old one once I get it off....sorry didn't mean to hijack the thread!

MickMc · 03-13-2009, 11:04 AM

In general...
The larger pistons in front calipers (front fullsize car and truck) require the larger master cylinder.

A smaller master cylinder will work, but the larger will work better.

If you were using the smaller (aftermarket) dual piston calipers then a smaller master cylinder would be ok.

I hope that is enough of an answer.

Mick

mbgmike · 03-13-2009, 06:06 PM

Pirate Jacks is the retail site of the company who manufactures our brake components and also many other companies. They are good parts or else we would not sell them. We sell all the same parts a little less than they do but many companies jack the price up considerably higher. Customers tend to think that since they are less expensive that their is something wrong. Not in this case. Many of their products are stamped with some famous names in the industry. We can have our named stamped or etched into the parts but that raises the cost of the part. I would not fear buying anything from Pirate Jacks.

03-12-2009, 02:56 PM	#1
6600DURAMAX Registered User Join Date: Nov 2000 Location: Wheatfield IN, USA Posts: 1,124	Hydroboost M/C questions Ordered a hydroboost unit today and am looking for an aluminum m/c to go with it. I have found one from Pirate Jack that has a 1’’ bore. What is the difference between a 1’’ bore and a 1 1/8’’ bore??? (I know 1/8’’ haha). Should I be looking for a m/c with a 1 1/8’’ bore??? Has anyone run an aluminum m/c from these guys they seem cheap on the price and have good customer service. They also have the alumiunum proportioning valve for disc/disc that I will order. Any thoughts guys thanks __________________ 1972 K5 - LS3/408 (595Hp) -6L80e-One Tons with 4.56, 20'' Beadlocks with 37'' rubber, full TMI interior, JL Audio ..... 1971 CREWMAX Build.....at body shop for couple more years

03-12-2009, 09:30 PM	#2
6600DURAMAX Registered User Join Date: Nov 2000 Location: Wheatfield IN, USA Posts: 1,124	Re: Hydroboost M/C questions Nothing guys?? __________________ 1972 K5 - LS3/408 (595Hp) -6L80e-One Tons with 4.56, 20'' Beadlocks with 37'' rubber, full TMI interior, JL Audio ..... 1971 CREWMAX Build.....at body shop for couple more years

03-13-2009, 02:43 AM	#3
MickMc Registered User Join Date: Feb 2008 Location: Albuquerque Posts: 359	Re: Hydroboost M/C questions Ordered from who? Link? Mick

03-13-2009, 03:13 AM	#4
petey-pablo "THE GREEN GOBLIN" Join Date: Mar 2008 Location: Fremont Ca. Posts: 1,025	Re: Hydroboost M/C questions I am guessing these guys--> http://www.piratejack.net/ __________________ Petey-pablo "THE GREEN GOBLIN" 1972 Cheyenne 10 Short Fleet Side Front 2.5inch Spindles with 2inch Springs Rear 4inch drop Springs. 454BBC TH400,Posi 1971 Cheyenne 10 Long Fleet Side 454BBC TH350,Posi Sold Drive it like you stole it! Petey-pablo@sbcglobal.net

03-13-2009, 07:37 AM	#5
6600DURAMAX Registered User Join Date: Nov 2000 Location: Wheatfield IN, USA Posts: 1,124	Re: Hydroboost M/C questions All I really need to know it what is the difference or advantage in running a m/c with a 1 1/8'' bore vs. a 1'' bore. Yes, that is the correct site I am going to order my m/c and proportioning vavle from __________________ 1972 K5 - LS3/408 (595Hp) -6L80e-One Tons with 4.56, 20'' Beadlocks with 37'' rubber, full TMI interior, JL Audio ..... 1971 CREWMAX Build.....at body shop for couple more years

03-13-2009, 08:05 AM	#6
jaros44sr Senior Member Join Date: May 2006 Location: Philadelphia, Pa. 19454 Posts: 9,704	Re: Hydroboost M/C questions They offer a 1 1/8" bore in different styles...then why use a 1" bore, I suppose the bigger bore would give you more volume Thanks for the site, nice stuff __________________ Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim Last edited by jaros44sr; 03-13-2009 at 02:20 PM.

03-13-2009, 08:55 AM	#7
gcburdic Restoration Virgin! Join Date: Jan 2008 Location: Huntersville, NC Posts: 8,298	Re: Hydroboost M/C questions They are close to me!!!....great customer service too....had a leaking prop valve, called them they sent me a new one and told me to return the old one once I get it off....sorry didn't mean to hijack the thread! __________________ Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present

03-13-2009, 11:04 AM	#8
MickMc Registered User Join Date: Feb 2008 Location: Albuquerque Posts: 359	Re: Hydroboost M/C questions In general... The larger pistons in front calipers (front fullsize car and truck) require the larger master cylinder. A smaller master cylinder will work, but the larger will work better. If you were using the smaller (aftermarket) dual piston calipers then a smaller master cylinder would be ok. I hope that is enough of an answer. Mick

03-13-2009, 06:06 PM	#9
mbgmike Registered User Join Date: Aug 2005 Location: Pasadena,Tx /Pto Pta DR Posts: 5,415	Re: Hydroboost M/C questions Pirate Jacks is the retail site of the company who manufactures our brake components and also many other companies. They are good parts or else we would not sell them. We sell all the same parts a little less than they do but many companies jack the price up considerably higher. Customers tend to think that since they are less expensive that their is something wrong. Not in this case. Many of their products are stamped with some famous names in the industry. We can have our named stamped or etched into the parts but that raises the cost of the part. I would not fear buying anything from Pirate Jacks.



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