Spree 48mm big bore kits

[Ultraliner]

Took the Nifty out for a run yesterday after work and later in the evening finally decided to take the plunge and have ordered one of Taz's big bore kits off Ebay(looking forward to it!!)

Currently running an SB50 reed set and intake with a stock carb and exhaust, 2.75x10 tyres front and rear and have a few questions...

Currently getting about 55km/h with the stock bore(on a good run) tho acceleration leaves a bit to be desired. Will the bbk have much affect on top speed without changing the gearing?

Taz do you offer replacement 48mm pistons as a replacement part in case I muck up the run in process?

Am thinking about buying this pipe locally and having modified as necessary to fit... What are you guys with the bbk running sucessfully?

Also have recently bought a cheap but awesome die grinder to tidy up the intake and exhaust ports, should be a fun time ahead!!

[Just Joel]

I'm quite impressed with the bbk I just installed.
I'm still braking it in but start off torque is much improved and revs quick to 15 mph (max so far).
I'm running an mlm pipe but I haven't opened it all the way yet.
Sb50 reeds and ported intake with the kit 90 main jet and a uni filter.
Make sure you cut the base gasket for the boost port.
I didn't initially and bothered Taz for a week before I pulled the jug to check.
Ran her ten miles like that and was disappointed in performance till I found my blunder lol.
Now it's great!
Can't wait to finish the brake in and open her up.

Edit: I see what you did there mods lol

[tazland001]

Yes I do carry them.

taz

[Ultraliner]

Thanks for your reply Joel, good news about the pickup from stationary. I'm not really looking for a gain in top speed but it's gonna be nice to get there a bit quicker!

I might look at one of the MLM pipes in future if shipping isnt too horrendous, one bad thing about NZ is that its pretty isolated from the rest of the world

Is the #90 main jet the one that comes supplied with the kit?

[paulpauly7]

Hi i live i CHCH i have a set of the taz gears which would suit your 48mm bbk quite nicely they are used but only done about 300kms on them. $50 + shipping unless local pm me for more details .I also have alot of other nifty fifty parts and honda smile parts.

[tazland001]

Yes it comes with a 90 main.

[Ultraliner]

Cheers paulypauly, have PM'd you

[Ultraliner]

Grr I think the PM I sent you is stuck in my outbox, dosent shift from outbox to sent so im not sure you would have recieved it... Id be keen on those Taz gears if you are willing to trade, drop me a line on sultels@xtra.co.nz and we can sort something out

[patthesoundguy]

If you can get that pipe super cheap, I'd go for it especially if you have a second stock pipe for a donor header. I hate hacking stuff that I may need so I try to find a donor part instead of using my original.

[Ultraliner]

I'm tempted to pat, the seller is after $100 US for it, do you reckon it'll be worth the gamble as to weather I can get it to work?

[paulpauly7]

Ill will txt you tomorrow .Sorry not on here as much as i used too.

[patthesoundguy]

I'm tempted to pat, the seller is after $100 US for it, do you reckon it'll be worth the gamble as to weather I can get it to work?

Hmmm that's a tough one, it all depends on your fab skills. If you get the header length right it could be OK, but once you cut the stock pipe up its hard to go back if the $100 pipe doesn't work out.

[Just Joel]

mlm pipe... Spend the money. They did all the hard work to deliver a quality product that actual works well. Bolt on easy performance... Nothing better

[tazland001]

I would not mod that pipe on there. looks like a jog(3KJ) pipe to me. Wont be easy to fab it on and I doubt it will even work right.

Taz

[Ultraliner]

Im starting to think the same thing... Would be cool if it would work but no point throwing $200 - $300 at it when the MLM pipe wouldnt be much more than that and its proven to be pretty decent