GSX1400 Owners .org

Technically Speaking => Modifications => Topic started by: kja on Wednesday, 08 February 2017, 06:52 AM

Title: Big Bore
Post by: kja on Wednesday, 08 February 2017, 06:52 AM
Just to update I've had the block done, oversize liners and 89mm pistons. The Yoshi cams are here too. The crankcase has been bored to suit. The Carillo's are on their way too, should be here within the next month. Apart from that progress is slow, Rog Upperton's had the head since last June, but he admits, as hes semi retired,  it will be a while yet so, watch this space.
Title: Re: Big Bore
Post by: gsxbarmy on Wednesday, 08 February 2017, 09:09 AM
Well that's quite some progress in itself - will def be watching this space!!!
Title: Re: Big Bore
Post by: VladTepes on Wednesday, 08 February 2017, 10:01 AM
What capacity will that take it to? 1550 ish ?
Title: Re: Big Bore
Post by: Mrg on Wednesday, 08 February 2017, 10:16 AM
seems like a nice project coming along nice .. be good to see the pic when you do have any  :onya: we all like pic  :clapping:
Title: Re: Big Bore
Post by: VladTepes on Wednesday, 08 February 2017, 12:41 PM
 :useless: :lol:
Title: Re: Big Bore
Post by: seth on Wednesday, 08 February 2017, 05:08 PM
very interested in this thread
may next winters upgrade to the 14

:boogie:
Title: Re: Big Bore
Post by: Blubber on Wednesday, 08 February 2017, 05:14 PM
Quote from: seth on Wednesday, 08 February  2017, 05:08 PM
very interested in this thread
may next winters upgrade to the 14

:boogie:

You should have bought boriz's upgrade kit then on eBay  ;)

That was a nice kit
Title: Re: Big Bore
Post by: seth on Wednesday, 08 February 2017, 07:10 PM
i didn't see it or would have  :whatever:
Title: Re: Big Bore
Post by: kja on Thursday, 09 February 2017, 03:24 AM
Quote from: VladTepes on Wednesday, 08 February  2017, 10:01 AM
What capacity will that take it to? 1550 ish ?

1692cc Vlad
Title: Re: Big Bore
Post by: kja on Thursday, 09 February 2017, 03:34 AM
Block and crankcase

(https://gsx1400owners.org/forum/proxy.php?request=http%3A%2F%2Fi222.photobucket.com%2Falbums%2Fdd76%2Fkjandrosie%2Fm17-1_zpsul8yitwj.jpg&hash=b5912809022d302fa76e5d459a08175e9e9c7d1d) (http://s222.photobucket.com/user/kjandrosie/media/m17-1_zpsul8yitwj.jpg.html)

(https://gsx1400owners.org/forum/proxy.php?request=http%3A%2F%2Fi222.photobucket.com%2Falbums%2Fdd76%2Fkjandrosie%2Fm17-2_zpst0d4vyxz.jpg&hash=2fea1ecbb42275b8550f51cd263d28e58e5fa79a) (http://s222.photobucket.com/user/kjandrosie/media/m17-2_zpst0d4vyxz.jpg.html)
Title: Re: Big Bore
Post by: TALLMAN on Thursday, 09 February 2017, 03:55 AM
Hello Kja , glad to see you here and that your big bore project is going ahead :drool: :drool:
Title: Re: Big Bore
Post by: Halibag on Thursday, 09 February 2017, 09:22 AM
you been bothering stu again. Um 1692 turbo now there's a thought. A silly one I'll grant you
Title: Re: Big Bore
Post by: VladTepes on Thursday, 09 February 2017, 12:32 PM
This is where I'll be going when lotto comes in... http://www.ptr.com.au/engine-packages/

Clearly it's significantly more expensive to get 160HP from a 14 than 240 from a b-king.
Title: Re: Big Bore
Post by: kja on Friday, 10 February 2017, 05:57 AM
Quote from: VladTepes on Thursday, 09 February  2017, 12:32 PM
This is where I'll be going when lotto comes in... http://www.ptr.com.au/engine-packages/

Clearly it's significantly more expensive to get 160HP from a 14 than 240 from a b-king.

I think their dyno figures are somewhat optimistic for the B-King, Boris was up around the 180-185 bhp mark with his 1700 kit, which is none too shabby. It can be done a whole lot cheaper than the prices quoted too.
Title: Re: Big Bore
Post by: kja on Friday, 10 February 2017, 06:03 AM
Quote from: Halibag on Thursday, 09 February  2017, 09:22 AM
you been bothering stu again. Um 1692 turbo now there's a thought. A silly one I'll grant you

Not recently, spoke to him on FB a while back, its a bit of a trek to his workshop from north Lincolnshire tbh.
Title: Re: Big Bore
Post by: kja on Friday, 10 February 2017, 06:04 AM
Quote from: TALLMAN on Thursday, 09 February  2017, 03:55 AM
Hello Kja , glad to see you here and that your big bore project is going ahead :drool: :drool:

It is yes, ideally I'd have liked to have been further on with it, but I'm at the mercy of others so I have to be patient.
Title: Re: Big Bore
Post by: kja on Sunday, 05 March 2017, 06:01 AM
Theres progress, a photo of the head inlet stubs after machining...........
Title: Re: Big Bore
Post by: kja on Sunday, 05 March 2017, 06:02 AM
Not much I know, but its a start  :)
Title: Re: Big Bore
Post by: Blubber on Monday, 06 March 2017, 08:59 PM
Every adventure starts with a small step  ;)

Hope to see the fruits of your trip soon :8:

Accompanied with a Dyno run print out ofcourse  :smitten:
Title: Re: Big Bore
Post by: grog on Monday, 06 March 2017, 09:13 PM
KJA, wish i could afford same. a great project mate. i will follow your posts. i would, if i had cash, love a 14 with 170 bhp. just something that needs to done without turbo.
Title: Re: Big Bore
Post by: kja on Tuesday, 07 March 2017, 05:04 AM
Rog has done another head for John MacLean/Warpspeed, every trick in the book, big valkves 34mm inlets and 30mm exhaust valves, a comptetition port and flow, he says never again though, too much work.
Title: Re: Big Bore
Post by: TALLMAN on Saturday, 11 March 2017, 04:38 AM
Quote from: kja on Tuesday, 07 March  2017, 05:04 AM
Rog has done another head for John MacLean/Warpspeed, every trick in the book, big valkves 34mm inlets and 30mm exhaust valves, a comptetition port and flow, he says never again though, too much work.

Surely as he's done one it would now be easier and cheaper todo a second or third ?
Title: Re: Big Bore
Post by: kja on Saturday, 11 March 2017, 06:59 AM
Quote from: TALLMAN on Saturday, 11 March  2017, 04:38 AM
Quote from: kja on Tuesday, 07 March  2017, 05:04 AM
Rog has done another head for John MacLean/Warpspeed, every trick in the book, big valkves 34mm inlets and 30mm exhaust valves, a comptetition port and flow, he says never again though, too much work.

Surely as he's done one it would now be easier and cheaper todo a second or third ?

I'm thinking he means the cost v any real gains, he's spent hours on it, literally, he reckons oversize inlets are possibly worth the hassle, not necessarily the exhaust valves. Will let you kno more when I see him next.
Title: Re: Big Bore
Post by: kja on Wednesday, 15 March 2017, 02:55 AM
Had a delivery yesterday, the Carillo's are here.......
Title: Re: Big Bore
Post by: froudy on Wednesday, 15 March 2017, 02:59 AM
Oooof...Nice delivery kja :boogie:
Title: Re: Big Bore
Post by: seth on Wednesday, 15 March 2017, 03:24 AM
stop and remove all these big bore post as everything is so tempting

:stir:
Title: Re: Big Bore
Post by: Blubber on Wednesday, 15 March 2017, 03:30 AM
Quote from: seth on Wednesday, 15 March  2017, 03:24 AM
stop and remove all these big bore post as everything is so tempting

:stir:

You know it makes sense to do it, Seth   :mwink:

You'll soon fall behind with a measly 130 Bhp  :twisted:
Title: Re: Big Bore
Post by: Blubber on Wednesday, 15 March 2017, 03:31 AM
Kja, are there more parts ( except the head)  you are waiting on?
Title: Re: Big Bore
Post by: seth on Wednesday, 15 March 2017, 03:46 AM
Quote from: Blubber on Wednesday, 15 March  2017, 03:30 AM
Quote from: seth on Wednesday, 15 March  2017, 03:24 AM
stop and remove all these big bore post as everything is so tempting

:stir:

You know it makes sense to do it, Seth   :mwink:

You'll soon fall behind with a measly 130 Bhp  :twisted:

i have a very manly 136bhp

i need to win a lottery before i could change much more tho .
if i did it would be internal mods.

Title: Re: Big Bore
Post by: kja on Wednesday, 15 March 2017, 05:01 AM
Quote from: Blubber on Wednesday, 15 March  2017, 03:31 AM
Kja, are there more parts ( except the head)  you are waiting on?

I'm nearly there, just some high tensile cylinder studs and nuts and gaskets. I'm on with the gaskets though Cometic will make the head and base gaskets to suit, still sorting the details though. The only other task to have sorted before I start the build is I want the crank/rods/pistons balancing, I'm junking the balancer shaft, I've found a place to do it, just sorting the details at the moment.
Title: Re: Big Bore
Post by: BlackAdder on Thursday, 16 March 2017, 08:44 AM
Quote from: kja on Wednesday, 15 March  2017, 05:01 AM

I'm nearly there, just some high tensile cylinder studs and nuts and gaskets. I'm on with the gaskets though Cometic will make the head and base gaskets to suit, still sorting the details though. The only other task to have sorted before I start the build is I want the crank/rods/pistons balancing, I'm junking the balancer shaft, I've found a place to do it, just sorting the details at the moment.

Make sure that you'r high tensile bits and bobs are long enough, and that you cant torque them in oem specs (thread stripping is very forcefully present with em, aluminum block vs hardened steel). And if you are going for studs, you have to pull the engine out every time if you want to do something involving the removal of the valve head.

What comes to balancing and Carillos - you can forget about it, they are spot on. Mine had a minute differences with the j.p pistons, and by mixing and matching no balancing was needed.
Title: Re: Big Bore
Post by: kja on Sunday, 26 March 2017, 08:49 PM
I was talking to a guy yesterday, he said any gains would be minimal, its more about reliability though, I will possibly end up with the balance shaft back in and not bother with the lightening.