419 replies to this topic

[mini_mad69]

I've got the maniflow single box, it's loud but it doesn't crackle and pop like other mini exhaust I've heard.

[AndyMiniMad.]

Well Haggis is going great....Ive done about 1000 miles now without having to wheek the engine out...Its really loosening up now...Never went up to tain yet for a blast down the runway....Maybe next weekend.
I bought some Mk 2 rear light lenses thinking they would be a direct replacement.....WRONG! they are a totally different size. Oh well! looks like more E-bay shopping required.

[AndyMiniMad.]

Well I went up to Tain on saturday and had a blast down the old runway...raced the buggy against "Haggis"...Mmmmm that buggy is quick,
The 4.2 final drive has made a huge difference to the acceleration. But "Haggis" prevailed in the drag to 60.
The buggy has had it at 69mph when runing the 12 inch wheels and 75 on the 15's. But its such a drift machine. 1275 tuned cooper engine. 78bhp at the back wheels in a buggy that is only 525kg's.
But Haggis is just soooo much quicker once it gets into its stride, Easily putting the buggy in its place.....(2nd) ha ha...Sorry Derek mate, but it looks like you need more power.

[AndyMiniMad.]

A quick update...The exhaust is blowing at the "Y" piece, and ive refitted the thing three times. I give up. its just a slight blow from the front and isnt that bad, but its a bit annoying.

I also got hold of a couple of Cobra Buckets in the right colour for £80. Much better...



Will have to clean up the half leather ones that came out and get them in the loft...

Edited by AndyMiniMad., 01 August 2011 - 10:37 AM.

[MJWarren]

Have you got a power figure for your engine yet?


Are you running the wide ratio box and if so, what are the speed do you redline at in each gear? and what diff are you using.

Matt

[AndyMiniMad.]

Hi Matt.... Yes Im runing the wide ratio gears with a 3.1 dif. The power is 98bhp and the torque is the same. I get 18.3mph per 1000 revs in top gear and a red line at 6500revs. But it wont pull past 5800 in top. so thats 106.14mph top speed. I would think it might go a bit quicker through the gears with a close ratio gear set from a 1275GT....Im going to fit these and a cross pin dif during the next winter. Maybe go back to a 3.44 FD as well. Dont know what the speeds are through the gears as I dont really get time to look. Im usually fighting the torque steer and clenching my buttocks.

Edited by AndyMiniMad., 01 August 2011 - 02:29 PM.

[leaky]

Project looks good mate. Bit confused about the mk2 rear lights. They should just fit straight in. Might need to do a little wiring but thats it. Its a simple job. I'v done it and I suck and electronics so much you cant even understand.

[MJWarren]

Thats for the info andy,

How come it wont pull past 5800rpm no more grunt to give? ive built up a straight cut gearbox with clubman ratios and a 3.2 final drive so ill let you know how it handles i think

I drew up a chart and got these speeds in each gear

predicted speeds at 6500rpm (not the redline)
1st 45mph
2nd 68mph
3rd 93mph
4th 116mph

Should see 120 odd hopefully

[AndyMiniMad.]

Project looks good mate. Bit confused about the mk2 rear lights. They should just fit straight in. Might need to do a little wiring but thats it. Its a simple job. I'v done it and I suck and electronics so much you cant even understand.

Yeah! it was my own fault. I stupidly thought that the rear lights for the mk 2 were the same size and all I had to do was change the lenses. But that was an epic fail. so im on the look out for a complete set now...

[AndyMiniMad.]

Thats for the info andy,

How come it wont pull past 5800rpm no more grunt to give? ive built up a straight cut gearbox with clubman ratios and a 3.2 final drive so ill let you know how it handles i think

I drew up a chart and got these speeds in each gear

predicted speeds at 6500rpm (not the redline)
1st 45mph
2nd 68mph
3rd 93mph
4th 116mph

Should see 120 odd hopefully

I fear that aerodynamics are my enemy. Its amazing how much more power you need to gain 10mph. But I never really had a long enough road to wait for it to top out. Im prety sure it will go faster. But to be honnest im more interested in acceleration than top speed. After all most 16 valve modern cars will blast past a mini once you get over 70 or 80 mph. But not much can keep up with me up to 70.

[leaky]

Project looks good mate. Bit confused about the mk2 rear lights. They should just fit straight in. Might need to do a little wiring but thats it. Its a simple job. I'v done it and I suck and electronics so much you cant even understand.

Yeah! it was my own fault. I stupidly thought that the rear lights for the mk 2 were the same size and all I had to do was change the lenses. But that was an epic fail. so im on the look out for a complete set now...

I see. Well the units arnt a lot of money. I'v only ever paid £10 for a set. Theirs normally a few sets around at auto jumbles.

[MJWarren]

ive tried to get a good balance of both acceleration and top speed with the 3.2 diff, and hopefully the 16v will help too.

Im impressed with your build, good to see people still doing engine builds at home!

[AndyMiniMad.]

ive tried to get a good balance of both acceleration and top speed with the 3.2 diff, and hopefully the 16v will help too.

Im impressed with your build, good to see people still doing engine builds at home!

Thanks... I learnt a lot by doing it myself. But the forum has been the biggest help.... I think the 16 valve minis are fab.... Went to Fintray hill climb this year and the noise from a 16V mini on full chat is simply awsome!!!

[AndyMiniMad.]

Right then. A change of plan....during this winter Im going to wheek the gearbox off and change it for a 1275GT close ratio one, and the final drive may go back to 3.44. A cross pin diff from minispares will go in as well...That should make it a bit quicker to 60mph. I wonder what revs it will be pulling at 60....any ideas?

Edited by AndyMiniMad., 12 August 2011 - 04:25 PM.

[AndyMiniMad.]

Steering column drop bracket fitted today...Much better driving position now. Am off on a treasure hunt this sunday and then on to the Brodie classic car show...Not entered Haggis this year. should be a good day out. Hope the rain stays away.