1.8, Stndard bore. My Chumper turbo needsa couple. Thanks,MM
1.8, Stndard bore. My Chumper turbo needsa couple. Thanks,MM
Mike Ogren , FWDracingguide.com, 352.4288.983 ,http://www.ogren-engineering.com/
a little too much boost, eh?
Did you melt em or break the top ring land?
phil hunt
Ring land. All have been broken directly under the squish band of the piston. Now I blend the piston tops and edges of the head.
I found two hotter plugs were in the broken holes. I had too much fuel mixture, maybe into the low 12s. ( I have a stand alone CIS-E modded to flow 77Grams per 30 sec per hole). Pretty sure I had some hydro locking at the squish area.
Was around 10# boost. 26* timing. Should pass around 170HP+ @ those numbers. Ran great for about 6hrs.
All these drags/street guys say that it will run for 10 years at 10# on the stock pistons.
Current setup; 9#,less fuel, 1 GPH or more,water injection@ pre snail, 25* lead. Double Shimmed head gasket, block dimpled between the holes. 4 colder plugs. Blended chambers.
It still roast both front tires in second gear and torque walks hard in all gears. Fun in the rain. But between this engine and a customer that thinks he should make 300HP with stock pistons, I need some more.
I will move to the 2.0 next, after I run out of stuff for the 1.8. This rotating ass has been in for 6 yrs. Still uses the same gapless rings( had 150 compression with the broken pistons).
Later, MM
Mike Ogren , FWDracingguide.com, 352.4288.983 ,http://www.ogren-engineering.com/
Interested in a set of low-mileage used ones? I also have a set of brand new .020 over 8.5:1 1.6 pistons and rings if you are interested.
Used standard bore is the best for me. The block is 2.5 over so I am set up for stockers. Thanks, How much?
When I hurt this block I will go with the 2.0.
The next Chumper may have one Buick V6/Caddy Northstar, etc in the back of the Mk 3 Jetta.
Mike Ogren , FWDracingguide.com, 352.4288.983 ,http://www.ogren-engineering.com/
Mike, I have a set of STD 1.8 JH pistons, clean with new rings installed. I changed them out to 10:1 and they only have been hand turned on the engine stand. I can make a deal for them in exchange for one of your prep guides.
Tom Broring
Wash DC Region
ITA Nissan Sentra SER
HP Triumph Spitfire
HP VW Rabbit
Done. Send me an mail . addy below
I'll send it off .
Thanks a lot. MM
Mike Ogren , FWDracingguide.com, 352.4288.983 ,http://www.ogren-engineering.com/
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