TYPE lV NIKASIL CYLINDERS, From 98mm to 104mm Options

[Type 4 Unleashed]

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[Jake Raby]

Jack...
Thanks for the post.. You may want to go on over to the Cal- Look forum and clear up some stuff there as well on the same subject.

In the early days LN used Raceware for head studs- results with the company and the product were not positive. The metallury of the stud has to be closely examined for total compatibility or you end up with the same results Porsche did in the 2.7 engines....

The problem is not "Lifting" of the cylinder heads, actually its the opposite of that as temperature rises and the cylinders and heads expand.... Studs that can't handle the expansion correctly over torque the heads and then you open up another new can of worms..... Hell it took almost a solid year of playing around with head torques before the optimum torque value was attained..... All this testing has not been cheap for Charles to pay for, He has spent several thousand dollars just with me and dyno time not to mention the strength yield tests and etc that have went into the product....... Jack, you will also encounter this and have to battle with it if you do intend to fully develop your product as well as LN has to date.

I certainly appreciate your offer of some cylinders for testing... I have NO PROBLEM creating a side by side comparison of your cylinders compared to the LN cylinders, even on the same engine (1 bank of cylinders LN and the other bank yours) and datalogging temps as well as overall engine expansion, head torque changes at various temps and etc... Then we'll drop the boost to it if you want! Charles would be the guy that would have to give up a set of his cylinders for the swap because he is the Mfr- I'm only a proponent of a bad ass product that I KNOW works and has all the bugs worked out of it... (thanks in part to your truly (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif) )

This LN cylinder is the largest made to date (105.07).. It was ran with .001 skirt clearance for 13,200 miles of pure hell and 27 dyno runs- the oil wasn't even changed from the day it was built on purpose...

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Jack, email me productdevelopment@aircooledtechnology.com so we can start some dialogue- I'd love to test the differences between the cast and Billet cylinders just to dis-spel some myths... Glad you joined us here (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)

BTW- don't for one minute think that I'm biased for a single Manufacturer- thats far from the truth! I Love to make things the best they can be and thats what is going to keep this industry growing- not dying. I have no problem treating the two products equally with no bias... I'l try to kill them equally and the one that lives wins!