grahem russle pistons?
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I was talking to Grahem today and i told him that i've got new 1st oversize std pistons for my 998 turbo engine and that the block has been bored to suit them already, he told me it would be worth while buying his new 998 pistons because they are stronger and will hold more boost, it was his oppinion that my std pistons would eventualy fail on 10psi, just wondering what other people think, do you agree? is it worth re-boreing my block and buying his new pistons? Has anyone tried his pistons?

Thanks. Chris

998 turbo

I didn't know that he did pistons, they have never been mentioned on this site as far as I know.

Can you find a link or provide any more info?

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Exactly what pistons have you got?

I've used the 20773 ons upto 18psi and 140brake. With a reasonable charge temp and correct timing an fuelling they have been ok.

I currently use the standard slipper type in my road 998 turbo at 6.6psi and 80-90 brake, again thes are fine at the moment. However, I used slipper pistons at 15psi and they fell appart.

I currently have the Hypertecs fitted to the hillclimber, running 15psi and 155brake, and they hve been reliable so far.

What pistons is Graham Russel trying to flog, he says they are his, but I doubt he makes them in his garage!

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

they are made at the same place as the Hypatecs. Graham first designed the hypatecs, and used them in his own engines. Then the people selling them started to increase the price he got them for, and he decided to design another type, for him self. The big bore piston has a very bucket like dish, but its not more than 6cc on smaller sizes, and 9 cc on the bigger overbores. They are cast and very light, and used in many race NA engines. They have a high silicone content of 11%.
I have never heard about them used in turbos though, but I am sure they would work.

He has none in stock for big bores now...

Edited by miniminor63 on 8th Nov, 2007.

why not use omega pistons?

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Omega are quite helpful if you contact them directly

It looks like the Mini7 Racing Club stock Omegas for 998s.

http://www.mini7.co.uk/classified.asp

That is if Mini7s still run the 998 engine.

I'll investigate.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Thanks for the reply's, whats the difference between the slipper type pistons and the 20773 pistons? i didnt know there were two types! If i do have the 20773 pistons do you think they will stand up to the abuse of a daily driver? I only plan on running 10psi, 12psi max, i just want it to be reliable (if its possible ).

Thanks again. Chris

998 turbo

Yes, the mini se7ens still use the 998. The Omegas are available to Se7en club mambers only iirc. and they are 4x the price of the Hypertecs.

two reasons why I don't use them.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

On 8th of Nov, 2007 at 10:13am clubby_turbo said:
Thanks for the reply's, whats the difference between the slipper type pistons and the 20773 pistons? i didnt know there were two types! If i do have the 20773 pistons do you think they will stand up to the abuse of a daily driver? I only plan on running 10psi, 12psi max, i just want it to be reliable (if its possible ).

Thanks again. Chris

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

wil-h what rpm are you using the Hypertecs at ?

The engine is limited to 7k, but they have seen over 8k on occasion.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

Didn't you do a 13.5 sec quarter with them?

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

i know the mini7's used standard pistons (to keep costs down) for some years and they had a bit of power and reved to 10,000 so must be quite good. when availability of the better standard pistons dried up they chose omega pistons as an alternative.

since 7 racing is "budget racing" i cant see them chossing £400 pistons as an alternative to standard pistons when there are other good pistons that are much cheaper.

i know i could get a set but have no idea of costs.

There were cheap as chips:

http://www.minisport.com.au/category5_1.htm

If these really are as good as people say, I guess Minispares would have to decrease their prices.

Graham had not finished his pistons when i built my last motor, and i dont believe he does a forged yet in big bore.

i used omega in this engine and i am very happy with them.

179hp on 12psi 1293cc of pure A series
14.0et @101 mph

Rev to 10,000! are you sure Turboshed??

Edited by Jason G on 10th Nov, 2007.

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Joined: 22nd December, 2003



There is a brand of pistons called Hypatec, they are hypereutectic pistons made by Right Way Piston Co. in Taiwan. theyre a nice piston but from what I know they dont make anything forged for the RB. There is a Hypatec liquid forged piston that is excellent but not available from what I know for an RB engine at all. They are made by pouring the liquid alloy into the die and forging it once it starts to solidify. This is the same way that Toyotas forged pistons are made and when you see some 1000hp-ish 2jz's they are awfully strong.

this is a quote frrom a skyline forum ..

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

~BARGAIN BRAND NEW~
CHEV 383 HYPATEC HYPOTECTIC PISTONS
( Please choose carefully as they are all different )
sales@atracingworld.com

PISTON SIZE
STOCK LEVEL

+ 030 PISTONS
IN STOCK

+ 040 PISTONS
IN STOCK

+ 060 PISTONS
IN STOCK




All this makes these pistons outstanding for performance applications!
Hypereutectic pistons are serious pistons that don't cost an arm and a leg.
Hypereutectic pistons are made from 390 alloy and heat-treated to T6 standards which feature:




Brand:
Hypatec

Product Line:
Hypatec

Bore (in):
4"

Piston Material:
Cast Aluminum

Piston Style:
Flat top

Compression Distance (in):
1.425

Dish Volume (cc):
4.0cc

Valve Reliefs:
Four

Wrist Pin Style:
Full Floating

Pin Diameter (in):
0.927

Top Ring Thickness:
1.5 mm

Second Ring Thickness:
1.5 mm

Oil Ring Thickness:
3.0 mm



30 percent stronger than ordinary pistons
Their 100 percent CNC-machined crowns
High upper compression-ring location
Gas-accumulator groove
Drilled oil returns
Spiral-lock retainer grooves
Ttighter fit compared to forged types
Provide improved oil control
Reduce blowby
Increase ring life
Eliminate cold start-up knocking




bit more

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

http://www.rightway.com.tw/english/edefault.htm

and that is the site .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Hypatec™

Hypatec® is a high quality performance piston. Hypatec® pistons are all manufactured from 11-13% silicon alloy combined with T6 heat treatment to create a piston that is stronger than many other pistons. Plus, every Hypatec® piston is manufactured utilising state of the art CAD/CNC diamond tipped machinery. The end result being a piston that can withstand the severe loads associated with today’s performance engines.

High silicon alloy is the preferred material for most cast pistons because it provides greater strength and greater scuff and seizure resistance. The silicon acts as small insulators, repelling the heat created in the combustion chamber, allowing the combustion chamber to retain its heat, creating a more efficient combustion process while the piston actually runs cooler.

Hypatec® pistons are heat treated using the T6 heat treatment process. This is a specialist process which is performed in two stages. During the first stage the piston is heated to 500°C for 9 hours and then water quenched to create a single phase alloy. The second stage involves heating the piston to 180°C for 10 hours and then allowing it to air cool. As a result, the alloy hardens to form a copper aluminium crystal, CuAI2. It is the formation of these crystals that give the alloy its strength.

Hypatec® pistons are manufactured by original equipment piston manufacturers. Because Hypatec® pistons are developed directly from the needs of engine manufacturers, the latest design features are used in many Hypatec® pistons. These developments include; anodizing, alfin inserts, ceramic fibre squeeze casting and gallery cooling. They are all original equipment developments and are included in the Hypatec® piston range for the aftermarket.

Hypatec® pistons can be purchased with cast, chrome or moly Hastings® piston rings and are available to suit a full range of American, Australian, British, Japanese and Korean applications.

oh god i cant stop now !!!

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM