ESE's works engine tuner

[speedpro]

clockwise +ten characters

[jasonu]

clockwise +ten characters

Sheeeittt that's fast. Last century I did a 31 something on Darrin Gossamers RG50 and thought that was pretty good, now it's rubbish, probably not even good enough for top 10.

[TZ350]

Avalon at Assen

[Haufen]

Distilled Water, with Glycerol anti-freeze. The Glycerol has noncorrosive properties and raises the boiling point of water, it also reduces the surface tension of water. To further reduce surface tension Acetone can be added in a ratio of 1 drop to 1 litre of water.

Thanks, do you happen to know the percentages of water and glycol which were used? I am wondering because as water has a higher thermal capacity than glycol and thus switching from the typical 50/50 mix to pure water would be an easy 5 deg C drop or so in the coolant temperatures.

[F5 Dave]

Pen rite 10 tenths is mixed at a lower ratio like 4:1 and is track legal. Will be a corrosion inhibitor (important for good heat transfer over the long run). But is not an antifreeze, but skidoos aside who cares?
Water wetter is another option

[FastFred]

do you happen to know the percentages of water and glycol

Glycol is illegal for Road Racing in NZ, because radiator water spills leave a dangerous greasy mess on the track if it has glycol in it.

[lodgernz]

Thanks, do you happen to know the percentages of water and glycol which were used? I am wondering because as water has a higher thermal capacity than glycol and thus switching from the typical 50/50 mix to pure water would be an easy 5 deg C drop or so in the coolant temperatures.

We were talking about Glycerol, not Glycol. They're not the same

[Dutch Fisher]

Thanks, do you happen to know the percentages of water and glycol which were used? I am wondering because as water has a higher thermal capacity than glycol and thus switching from the typical 50/50 mix to pure water would be an easy 5 deg C drop or so in the coolant temperatures.

2-5% Glycerol. The need to stop micro pitting in the Magnesium and Aluminum parts used in the cooling system is why it's used. Mg and Al don't like an alkaline solution touching them so the pH level has to be lowered to a more acidic level. The pH level drops in pure water as its heated anyway, but starting with a pH of about 6 helps.

We were talking about Glycerol, not Glycol. They're not the same

Correct

[richban]

Well she's all back together now. Really happy with the first tuning run. A very fat 11% power increase over the old barrels. In the pic you can see some work in progress. chopped the piston skirt and put a radios on the duct and bridges. The exhaust ports are way bigger and the B ports are cut back around towards the boost a lot more then the old barrels. Also I have a new massive radiator to keep temps under control. She sat a 55 happy as on the dyno.

Can't wait to unleash the new power.

[speedpro]

Saw "300 Update" from Richban and immediately thought it was a report on his new bucket

[Henk]

Saw "300 Update" from Richban and immediately thought it was a report on his new bucket

Bucket has been at 325 for the last two years.

[Pumba]

He is not even trying to hide it and has written the side of the cylinder. Presume it 415cc per pot Rich?

[richban]

Saw "300 Update" from Richban and immediately thought it was a report on his new bucket

Oh dear. Well for your info. The bucket has a buggered big end. So I will maybe give it a birthday and maybe take it to the next oversize......

[F5 Dave]

Stop giving him shit, I've actually seen it and its only 154






Cubic inches.

[Lucas M]

Hello guys. It´s me again. Maybe you remember me from page 1082.

There is some new stuff I want to show you. I have done some machining on the cylinder, the head and I built a new exhaust (slightly different dimensions).
I was able to gain 0,5rwhp but the more important fact is the bandwidth after peak hp. It is way better rideable than the old one, because the hp don´t drop too fast (old dotted blue, new one red, both hp at the real wheel)
The difference in the two powerbands responds from different compression ratios, the old was 15:1, the new 9,5:1. I am satisfied with my engine and in the moment I don´t plan to change something on it.

Riding video:
https://www.youtube.com/watch?v=49X465mPmHM

Some stuff I built:
https://www.facebook.com/EPsimson


Greetings from Germany
Lucas