ESE's works engine tuner

**F5 Dave** · 15th July 2012, 20:44

I was intending for the Mk1 version of my det sensor to use it on aircooled head by drilling a fin & putting a nut behind a fin & bolting it there. Mk2 w/c head I will have a tapped hole. Maybe the fins will vibrate too much & isolate the knock?

My gauge order got lost but apparently is shipping now.

My det sensor ( a subi one) is a Jap made one with one wire. I clamped a bolt through it as an earth & connected the wire to a scope & gave it a few bangs & the piezo generates almost 5V.

How much are you intending to pull out when in det? Am I reading 10? I would have thought 3 deg would be ample.

**Yow Ling** · 15th July 2012, 20:56

Originally Posted by F5 Dave

I was intending for the Mk1 version of my det sensor to use it on aircooled head by drilling a fin & putting a nut behind a fin & bolting it there. Mk2 w/c head I will have a tapped hole. Maybe the fins will vibrate too much & isolate the knock?
.

My take on it was it had to be mounted on a stud or in the block of a car engine , bolting it to a fin is going to introduce tons of ringing and other noise. The instructions pretty keen on torquing it down pretty tight

**F5 Dave** · 15th July 2012, 21:08

So in that case, I'll have to bolt to a more solid section of the head. Can't do a head bolt on an MB.

**TZ350** · 15th July 2012, 21:08

Originally Posted by F5 Dave

How much are you intending to pull out when in det? Am I reading 10? I would have thought 3 deg would be ample.

This is all new to me so not sure, just want to get it all mounted and connected up properly so it functions then play with it. I am hoping a few people will post some more pointers about timing and retard etc.

**husaberg** · 15th July 2012, 21:25

Ok how did i miss this i have to get from a German on the french Pitlane thread whats up with that next thing we will all be riding around on Japanese bike and have German cars.

**F5 Dave** · 15th July 2012, 21:39

Probably the majority of the improvement in power smoothing came from the programmable ign. That said big cylinder, maybe there is an advantage that wouldn't be there on small cylinder.

Watched some modern mx racing recently. Sounds dreadful, - like a field of farty bikes

. Would be good to see some real engines spice things up.

**gav** · 15th July 2012, 21:53

Originally Posted by husaberg

Ok how did i miss this i have to get from a German on the french Pitlane thread whats up with that next thing we will all be riding around on Japanese bike and have German cars.

YZR500 = V4 GP500 not some bloody choock chaser ....

**Buckets4Me** · 15th July 2012, 22:04

I've got tyhe mag that this was in somewhere will try and scan it for ya

**husaberg** · 15th July 2012, 22:15

Originally Posted by Buckets4Me

I've got tyhe mag that this was in somewhere will try and scan it for ya

I have a Alloy framed CR500 i will let you ride it sometime

I doubt they are really 70hp 50 yes 70 I really doubt it. Fun though.....

**Buckets4Me** · 15th July 2012, 22:18

Originally Posted by husaberg

I have a Alloy framed CR500 i will let you ride it sometime

I doubt they are really 70hp 50 yes 70 I really doubt it. Fun though.....

I have an rm250 and that enough for me thanks

unless I can get the rules changed and fit the 500 into my rs chassie ( now that would stick it to the 4 bangers)

**F5 Dave** · 15th July 2012, 22:21

it would probably just crack the frame before you got out of 3rd. Yeah people believe hp claims.

**TZ350** · 15th July 2012, 22:22

For those that want to know what F4/5 racing is realy about ....

Race commisioner Peter Rummage talking about Buckets (officialy the F4 & F5 class) ....

Originally Posted by gav

Hi again Gavin

As one who was building and racing buckets from the first day they escaped the Airforce, I can tell you the intent of the original rules was to encourage the building of performance, not simply the buying of horsepower in the guise of factory race parts.

Cheers
Peter R

Buckets was not conceived as an entry level race class, it can be for some but it really was conceived as a constructors class with certain eligibility rules designed to make sweat equity and cleverness count for more than $$$$$.

From day one there was serious tuning and construction going on.

For a true buy it and ride it entry level race class you need to look at street stocks or super lights or whatever the current small road bike limited modification class is called this week.

Buckets as Cheap Entry Level racing ...... well it can be, but you will have to do some serious hands on work and be a talented rider to be competitive at the pointy end.

**husaberg** · 15th July 2012, 22:49

Originally Posted by Buckets4Me

I have an rm250 and that enough for me thanks

unless I can get the rules changed and fit the 500 into my rs chassie ( now that would stick it to the 4 bangers)

up to 500cc singles used to be legal for F3.
MNZ site won't work for me at the moment for the current rules.
It would get hammered by a Wobbly RZ400.

My frame that i got has cut out from what i believe was a YZ250 motor i bet it was more tourquey but no faster than the RS125 motor

Originally Posted by F5 Dave

it would probably just crack the frame before you got out of 3rd. Yeah people believe hp claims.

I thing Dave would be right. The Cr250 frame has trouble damping the vibes. It would be better in a steel frame. Admitidly mine is an old 98 frame that is more like a NSR250 in dimensions.