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Make a 1100 go like >1275

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Post subject: Re: Make a 1100 go like >1275

Posted: Wed Dec 17, 2014 8:58 pm

Oh dear, worry, worry...

Joined: Fri Jun 19, 2009 5:31 pm
Posts: 692
Location: North Rocks

HI Low n Blown
Please explain? what more prices do you want? oh pistons $375 a set the rest of the prices would be the same as any mini motor.
Graham Russell

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"It's better to be not informed than ill-informed"

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gtogreen1969

Post subject: Re: Make a 1100 go like >1275

Posted: Wed Dec 17, 2014 9:04 pm

1275cc

Joined: Fri May 02, 2008 3:07 pm
Posts: 5123
Location: The Internet

I love watching you 2 go at it. Good to see there's 2 sides to everything.

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boomini

Post subject: Re: Make a 1100 go like >1275

Posted: Wed Dec 17, 2014 9:24 pm

1098cc

Joined: Wed Jun 26, 2013 10:05 pm
Posts: 1500
Location: perth WA

I have 1 1275 at home and about 10 1100's. Im considering selling my 1275 to fund the modifications gr is doing.

The reason is i like like to drive my minis hard.

If I destroy a 1275 block well thats it. Another $500 too $1000 plus machining. If I destroy an 1100 block. Oh well build another.

I think what gr is doing is great. 100 hp out of an 1100 is brilliant. Yes initial cost of maching will be more than machining a 1275 but it is far cheaper than the cost of an 1275.

Just my 2 cents.

Rodney

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The best part of fixing your mini is the test drive

Minis..

1976 van daily drive
1975 van
1968 deluxe in the shed
1967 deluxe high strung 1310
1959 austin healey sprite

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drmini in aust

Post subject: Re: Make a 1100 go like >1275

Posted: Wed Dec 17, 2014 9:31 pm

religious status

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39752
Location: near Baulkham Hills, NSW

As said, the best part about building a smallbore block is if you lunch it, you just pull another off the pile in the corner.
But finding good 1098 cranks could become a problem soonish.

1275s are getting rarer, I'm down to my last 2 spare std bore blocks. At least they are going up in value.. haha.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:

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low n blown

Post subject: Re: Make a 1100 go like >1275

Posted: Wed Dec 17, 2014 9:36 pm

1098cc

Joined: Tue Aug 24, 2004 3:57 pm
Posts: 1478
Location: queensland

So now back to the original question of mr or ms "iamstib" to make your 1100 go like a 1275 you are going to have to modify the 1100. Your 1275 is ........... already a 1275. It is going to take more than the difference in purchase price to modify your 1100 to the point that it will have similar power to your standard 1275, and all you have is still an 1100 engine, so it remains a false economy.

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1970 Cooper S ex-Bathurst & ATCC
1964 Austin Cooper S ex-Group C race car
1967 Morris Cooper S ex-Group B
1962 Mini Speed sports sedan
1968-71 ex-Peter Manton Shell car

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low n blown

Post subject: Re: Make a 1100 go like >1275

Posted: Wed Dec 17, 2014 9:44 pm

1098cc

Joined: Tue Aug 24, 2004 3:57 pm
Posts: 1478
Location: queensland

boomini wrote:

Sorry mate but I disagree. It is going to take more than the cost of just the machining to achieve that sort of HP. But I am sure Graham is going to come along soon enough and tell us what this is going to cost. I'm not sure why everyone is concerned with destroying their blocks. How many engines are you guys building that blow up?
As long as people keep selling their1275's I will keep buying them.

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1970 Cooper S ex-Bathurst & ATCC
1964 Austin Cooper S ex-Group C race car
1967 Morris Cooper S ex-Group B
1962 Mini Speed sports sedan
1968-71 ex-Peter Manton Shell car

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low n blown

Post subject: Re: Make a 1100 go like >1275

Posted: Wed Dec 17, 2014 9:46 pm

1098cc

Joined: Tue Aug 24, 2004 3:57 pm
Posts: 1478
Location: queensland

GR wrote:

HI Low n Blown
Please explain? what more prices do you want? oh pistons $375 a set the rest of the prices would be the same as any mini motor.
Graham Russell

Come on Graham you know what I am asking?

Let me guess "If you have to ask you can't afford it?"

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1970 Cooper S ex-Bathurst & ATCC
1964 Austin Cooper S ex-Group C race car
1967 Morris Cooper S ex-Group B
1962 Mini Speed sports sedan
1968-71 ex-Peter Manton Shell car

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boomini

Post subject: Re: Make a 1100 go like >1275

Posted: Wed Dec 17, 2014 9:48 pm

1098cc

Joined: Wed Jun 26, 2013 10:05 pm
Posts: 1500
Location: perth WA

I just asked gr. Waiting on a reply and my 1275 is forsale... needs rebuild but still asking $1200. You interested low n blown.

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The best part of fixing your mini is the test drive

Minis..

1976 van daily drive
1975 van
1968 deluxe in the shed
1967 deluxe high strung 1310
1959 austin healey sprite

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Chux

Post subject: Re: Make a 1100 go like >1275

Posted: Wed Dec 17, 2014 9:49 pm

848cc

Joined: Thu Dec 06, 2012 8:56 pm
Posts: 437
Location: Sydney

Kennomini wrote:

Micks right.
Well you can spend $2100 (machining and purchase) on a 1098 and get 100bhp and 80ft of torque or you can spend $3500 (same machining costs and extra 1275 purchase costs) on a 1275 and get 160bhp and 120ft of torque.
Then worst case, lets say a year later something goes bang and the block or crank (or both) gets damaged, you can either spend another $100 on small bore parts or $500 (if you're lucky) on 1275 parts...

Send me up one of those $3500 160hp donks?

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1968 Mini-matic - 1340cc, 45 weber - 92hpatw, 14.5 @91mph, GrandmaSpec

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low n blown

Post subject: Re: Make a 1100 go like >1275

Posted: Wed Dec 17, 2014 9:53 pm

1098cc

Joined: Tue Aug 24, 2004 3:57 pm
Posts: 1478
Location: queensland

boomini wrote:

I just asked gr. Waiting on a reply and my 1275 is forsale... needs rebuild but still asking $1200. You interested low n blown.

PM sent.

This sh!t just keeps on getting better.

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1970 Cooper S ex-Bathurst & ATCC
1964 Austin Cooper S ex-Group C race car
1967 Morris Cooper S ex-Group B
1962 Mini Speed sports sedan
1968-71 ex-Peter Manton Shell car

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low n blown

Post subject: Re: Make a 1100 go like >1275

Posted: Wed Dec 17, 2014 9:58 pm

1098cc

Joined: Tue Aug 24, 2004 3:57 pm
Posts: 1478
Location: queensland

Sorry guys would love to stay and play but I have to get up tomorrow as I have a financially viable business to run, based on sound economic decisions.
Good fun tho!

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1970 Cooper S ex-Bathurst & ATCC
1964 Austin Cooper S ex-Group C race car
1967 Morris Cooper S ex-Group B
1962 Mini Speed sports sedan
1968-71 ex-Peter Manton Shell car

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sitnlo62

Post subject: Re: Make a 1100 go like >1275

Posted: Wed Dec 17, 2014 10:01 pm

998cc

Joined: Tue Apr 11, 2006 8:15 am
Posts: 722
Location: Brisbane

Any One want to see a picture of my Christmas tree?
Go to www. LOL
Its more interesting than This !!!!

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low n blown

Post subject: Re: Make a 1100 go like >1275

Posted: Wed Dec 17, 2014 10:06 pm

1098cc

Joined: Tue Aug 24, 2004 3:57 pm
Posts: 1478
Location: queensland

True your xmas tree is more interesting than this, but it smells and its got its first like on Facebook.
God knows how ....................... you need professional help.

_________________
1970 Cooper S ex-Bathurst & ATCC
1964 Austin Cooper S ex-Group C race car
1967 Morris Cooper S ex-Group B
1962 Mini Speed sports sedan
1968-71 ex-Peter Manton Shell car

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Scoop

Post subject: Re: Make a 1100 go like >1275

Posted: Wed Dec 17, 2014 10:08 pm

998cc

Joined: Mon Mar 10, 2014 11:38 am
Posts: 1143
Location: Tassie

I just rebuilt an 1100 for about 2k. All the machining costs are about the same regardless of size.

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1963 Morris 850 Smoke Grey
1963 Morris 850 Shadow Blue
1965 Morris Mini Smooth Van
1966 Morris Mini Van
1969 Morris Mini Deluxe Resto
5/72 Clubman Gt

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Scoop

Post subject: Re: Make a 1100 go like >1275

Posted: Wed Dec 17, 2014 10:27 pm

998cc

Joined: Mon Mar 10, 2014 11:38 am
Posts: 1143
Location: Tassie

low n blown wrote:

Purchase price of 1275? $1200
Price of 1100? $100
Your saying with that difference you couldnt buy the components to achieve the standard hp of a 1275?
GR has already given the piston price, $375
Cam grind, $150
Carby on manifold, $500
With what GR has shown already, it shows a 50% gain over a standard 1275. You need a new economist.

_________________
1963 Morris 850 Smoke Grey
1963 Morris 850 Shadow Blue
1965 Morris Mini Smooth Van
1966 Morris Mini Van
1969 Morris Mini Deluxe Resto
5/72 Clubman Gt

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