Are crank scrapers worth it?

Posted By: Anonymous

Are crank scrapers worth it? - 07/08/08 07:36 PM

I know they pretty much require that you hand build them for each application to be most effective.

Does oil wrapping around the crank really sap that much HP?

What's the minimum clearance should I have between the
crank and the scraper?

What materials do you guys make them out of?

Posted By: charles6970

Re: Are crank scrapers worth it? - 07/08/08 07:37 PM

i think that they are a waste of time and $$$.

Posted By: dOrk !

Re: Are crank scrapers worth it? - 07/08/08 07:45 PM

Mr Personality(WJ) did an extensive article for National Dragster some years back about oil and oiling systems ...etc.

He liked scapers ... very much so. And I will bet that every PS car has one on it.

Posted By: Rug_Trucker

Re: Are crank scrapers worth it? - 07/08/08 08:16 PM

Suppossed to be worth 10+HP on a slant!

What is this about factory SB windage trays being junk?

Posted By: Magnum

Re: Are crank scrapers worth it? - 07/08/08 09:49 PM

Even Neon SRT4's have them.

Posted By: dogdays

Re: Are crank scrapers worth it? - 07/08/08 10:54 PM

The longer the stroke and the higher the rpm the more they are worth.

R.

Posted By: Rug_Trucker

Re: Are crank scrapers worth it? - 07/08/08 10:57 PM

Quote:

The longer the stroke and the higher the rpm the more they are worth.

R.

Slants are long stroke, just short on "inches!"

Posted By: slantzilla

Re: Are crank scrapers worth it? - 07/09/08 01:55 AM

There is a guy in Florida who builds them for about any engine you want. IIRC, he usually has an ad on E-bag.

I have one in my Slant. It did require grinding and trimming to get it in just like the windage tray did.

I would be very surprised if the dyno showed I gained 10 horse from the scraper and tray together.

Unless you plan on spending a lot of time above 3500 rpm I wouldn't bother.

Posted By: CJK440

Re: Are crank scrapers worth it? - 07/09/08 12:52 PM

www.crankscrapers.com

Posted By: sixpackbee

Re: Are crank scrapers worth it? - 07/09/08 01:42 PM

Scrapers are worth power on any application. On A engines use a scraper only. On B eninges use with a tray.