NITROUS OXIDE ( nos / n2o ) advice forum

Just back from Santa Pod where I saw Dave's first pass of the year.

7.3 at 160 - very effortless. He span the wheel some at the start as the track was cold and not good at all, plus he left some on the table at the top end, as you can tell from the terminal. So a decent track and a full pass will shock a few people.

Nice, easy first pass. That bike has got solid 6s in it, no problem at all. Well done to Dave for a confident start.

i had a quick chat to dave in the pits, and a good look at the revos

Thanks folks great to end the season on a high - it's been a terrible season all in all. Though admittedly I did run my quickest ever pass this year...
I need to recap the seasons events with you as soon as I get a minute.

It's a bit of shame that it took all year to get the fuelling right - though it does make a right mess and waste a load of time everytime you get it wrong... lucky I've got 3 cylinder heads I guess
I'm not sure the melt downs were due to the fuelling (which is one of the reasons I need a seasons recap), as some of those problems I'm reasonably sure were due to the cracks and valve/seat issues.

...and then there's the other things that went wrong.
More reasons why I need the recap.

Hey! doesn't matter now. The very last pass this year was bang on the lambda reading I wanted and though it wasn't pretty it did the job! Not pretty because I headed for the centre and the 8th mile blocks and had to back off to steer it away [I'm not great at steering] of note is the fact that as I could taste victory I then got back on the power! and we're talking theoretically [of course] 180bhp of nitrous immediately I hit full throttle. I think the fact that I went home with my engine still in one piece shows the fueling is right
...as long as we don't change anything this time (except the engine! LOL!)
A new engine would certainly be nice, shame they are so expensive.

another interesting point, which I didn't want to advertise prior to the meeting, was that the replacement bottom end I put in turned out to have a few minor issues with it. Ok! one really big issue there are 12 studs that hold the cylinder head on. One had pulled out almost completely and 2 others I stopped torquing as they had started pulling out. Hey! it held together didn't it?!
I'm glad you didn't tell me about those problems beforehand and it's AMAZING that it held together with those issues and the other less than ideal aspects of the engine.

I'm going to stop typing now as IE is doing something strange and I can't see what I'm typing.
I have the same problem and my brother tells me it's because I'm using the latest version of IE and that I should go back to the previous version.

2 engines for next year - confident that that will be achievable
That would be handy, because if you had a spare, you'd never need it, just as SODS LAW decrees.

- might need crew though - any offers gratefully received. And no you don't get paid
They get a free ticket to the event though (I believe) and even without that, you should have a queue a mile long wanting to be involved in your endeavors.

from what i have read it seams always ya middle 2 clylinders go bang , why do you think that is
I still have to check all Dave's records but my opinion at this stage is that the ORIGINAL damage to the heads has never been repaired correctly (see posts on linked thread) and as a consequence that damage (cracks) has caused repeated failure of the same cylinders.

and if ya dont have a 4 point wide band where is your sensor located
It's a good way down the collector pipe and being a single item can only AVERAGE the AFR from all 4 cylinders, which is obviously less than ideal.

Tezz

dave...put that bike in a crate. bring it to north carolina, and we will have you consistent 6.50s when you go home..the bike has it in it. bring it here for some good weather, and sticky tracks and we will get you right.