93 k10 Micra - Holy thread revival batman (06/08/13)

[st182]

speedle- thats a name i remember- if anyone knows his K10's its this man good to see you still about sir

[Speedle]

Aug 16, 2010 23:28:27 GMT st182 said:

IIRC from my k10 days its not so much the bottom end which sh!ts itself but the gearboxes are quite weak- I remember something about the very early K11 1.0 box being compatable though? could be wrong and i've drank several beers since then hic

thats true the gearboxs can't handle the power for long, CG10 gearboxs can be made to fit but its not a simple swap operation unfortunatly. I can't remeber the exact issues though Its been a long while since I was in the k10 game.

[Speedle]

Aug 16, 2010 23:29:47 GMT st182 said:

speedle- thats a name I remember- if anyone knows his K10's its this man good to see you still about sir

nice to know I'm infamous I can pretty much say if someone thought about it I tried it when it came to k10's. I'd have another one tomorrow if I had the space

[rtlkyuubi]

Thanks for the replies everyone, I was talking to the lad who I bought the head off (he grass tracks k10's) and he said the ma10 block, crank and pistons will be able to take the extra reving and power, but its the gearbox thats the problem. With them using 2nd alot when racing, they tend to jump out after a while.

st182: How much would you want for them? I'm a bit skint this month after purchasing these lol.

Robinxr4i: Pretty much so as most of it has to be custom made or modded.

Speedle: was that with the standard head? and did the bottom end start knocking? The peak power is at 8.7k and my rev guage only goes to 8k Need to get a new one.

[st182]

Not too much mate! but let me have a root for them first- don't wanna sh!t before my knickers are down..........

[Speedle]

Aug 17, 2010 6:43:46 GMT rtlkyuubi said:

Speedle: was that with the standard head? and did the bottom end start knocking? The peak power is at 8.7k and my rev guage only goes to 8k Need to get a new one.

that was with a stock MA10s head, i never had any issues with the car running that power as I always made sure I didnt over rev it so always changing gear at about 6700rpm which was the peak power anyway, good gear box oil and tight gear linkage will all help maintain the gearbox but eventually it will give up. I know some grasstrack guys have uprated gearbox's so it may be worth looking into that, although when I looked at such things it was VERY costly

[kee]

this is news i like to see, Ryan ;D

what capacity will it be once done?

[Colonelk]

haha best source a spare bottom end then dude for when it spits a rod itll be mental though!

[ettorebugatti]

Nice goodies!

The CG10DE gearbox has better gear ratios for a screamer engine that you are building. I don't know if it is stronger, but it is more close ratio then the std K10 5 box.



Vroappppp!!!!!!!

[Steve]

Ohhhh right...i like where this is goin! giggidy giggidy ;D

[rtlkyuubi]

Aug 17, 2010 11:58:56 GMT st182 said:

Not too much mate! but let me have a root for them first- don't wanna sh!t before my knickers are down..........

sweet, give me a message if you find them

Aug 17, 2010 12:05:37 GMT Speedle said:

that was with a stock MA10s head, I never had any issues with the car running that power as I always made sure I didnt over rev it so always changing gear at about 6700rpm which was the peak power anyway, good gear box oil and tight gear linkage will all help maintain the gearbox but eventually it will give up. I know some grasstrack guys have uprated gearbox's so it may be worth looking into that, although when I looked at such things it was VERY costly

I wont be thrashing it everywhere anyway so hopefully the box will last a while ;D

Aug 17, 2010 17:48:30 GMT kee said:

this is news I like to see, Ryan ;D

what capacity will it be once done?

I have no idea lol. I'm using the 1 litre block but the head has been heavily skimmed!

Aug 17, 2010 17:56:55 GMT Colonelk said:

haha best source a spare bottom end then dude for when it spits a rod itll be mental though!

Ill be keeping the original engine incase it does go pop lol.

Aug 17, 2010 18:37:15 GMT ettorebugatti said:

Nice goodies!

The CG10DE gearbox has better gear ratios for a screamer engine that you are building. I don't know if it is stronger, but it is more close ratio then the std K10 5 box.



Vroappppp!!!!!!!

A short ratio box would suit it well, except that I want it to have a some what reasonable MPG ;D It sits at 3.5k at 70 atm because of the small wheels, and I have to travel to Bristol every couple of months.

Aug 17, 2010 18:44:34 GMT Steve said:

Ohhhh right...i like where this is goin! giggidy giggidy ;D

hahah I feel like that too ;D

Ive stripped the engine down today so will post pics up when theyve uploaded

[rtlkyuubi]

I started today off with getting the car up in the air as I was getting bored of the exhaust scraping everywhere. And well, that and a few other things have taken i liking to the tarmac:

Gearbox


Sump


Bottom arm mounts


Exhaust


After looking at it, to raise it up I'm gonna have to chop and shorten the downpipe, but i havnt got a working grinder atm so that went out the window. I got my new sidelight covers from donttellhimpike ( cheers mate! ) so fitted them:



Then went on to stripping the 1litre engine I had ready for its new head:

Bloody clean in there to say it was from a D reg!


That isnt though, new water pump time:


Got the head of too find this:


Its like bloody new still!

[Speedle]

never ceases to amaze me how good the ma10/12 engines are, my first car was a k10 1.0 with 127k on the clock and that engine was modded and lasted till about 210k miles before I swapped it out for a 1.2 and even then it didnt smoke or use any oil

[st182]

great nick. just like a well serviced MA10 should be, never saw my bores but with the cam cover off mine was golden brown too

*nips off to garage to look for CBR carbs despite heavy risk of waking neighbours*

Sorry mate was in the garage earlier this eve and forgot

[st182]

reeto mate, just found these :





You have PM ;D

[WillCarter]

This is going to be one insane little buzzbox.

[ettorebugatti]

A short ratio box would suit it well, except that I want it to have a some what reasonable MPG It sits at 3.5k at 70 atm because of the small wheels, and I have to travel to Bristol every couple of months.

Well you go from 1.2 to 1.0, isn't it? That should show an improvement in mileage
But on a serious note I would certainly consider a milder cam if you care a little bit about mileage.

You also need some magnesium skidplates to protect your sump and get the coolest sparks behind you driving it.

BTW: Will this fit? The flanges are correct.

[rtlkyuubi]

st182: sorry mate, but my finances have taken a turn for the worse so cant afford to buy them

ettorebugatti: looks mega tricky to make, but have you got the diementions for it?

Little more progress today. here comes the fancy pictures as my dslr camera came in the post today

Pistons out of the block:


nice clean crank:


Crank shells in bloody good cond


and the car its going in


Ill be building it back up with a new water pump and belt tomorrow and will take pics

[ettorebugatti]

Well, here are the main dimensions.


It is a 4-1 manifold with very long runners to improve the low end. The two inner runners are equal in length and the two outer ones are quite close to eachother. 4-2-1 is perhaps better, but this one is easier to manufacture IMHO.

The lengths and diameters are OK as a starting point. On a dyno you may end with different dimensions

I'm not sure if it will clear the sump and the alternator might in the way too. Also I can imagine that ground clearance might be an issue with your car

Please check this before , because I don't do warranty.

The construction should be quite simple:
-The flange is from a 15mm thick plate width a length of 286mm l (1x)
-The bends are 90deg welding elbows 33.7x2.6mm with 1.5D radius (9x)
-The straights are from 35x1,5mm (incl. collector around 2.5-3.0m)
-The collector is made from 4x 35x1.5mm pieces. see for fabrication details: www.honda-tech.com/showthread.php?p=42696266
-The rest of the system would be 38,1mm/ 1.5", I would finish it of with a bike silencer.

I would use mild steel, because it is cheap and easy to process. You have to put some coating on it (not wrap) to extend the product life.

So make 2, please

[st182]

Aug 18, 2010 21:41:33 GMT rtlkyuubi said:

st182: sorry mate, but my finances have taken a turn for the worse so cant afford to buy them

no problem at all mate can hold them for a short while if need be? if you've decided on a different method of carboration / fuel injection no probs, just let me know and i'll see if another RRer wants them