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What a crank-scraper is and other technical info... Some comments on our products...
 
Alfa-Romeo, AMC, BMC, BMW, Buick, Buick-Rover, Cadillac, Chevrolet, Chrysler/Mopar, Datsun-Nissan, Fiat-Lancia, Ford, GM, Honda/Acura, IHC, Jaguar, Lotus, Mazda, Mercedes, MGA/MGB, Mitsubishi, Oldsmobile, Opel, Pontiac, Porsche, Renault, Suzuki-Geo, Toyota, Triumph, VW, Volvo

 

 

We will try to keep this list updated but if you do not see your engine listed here please ask!  We can  do custom stroker or knife-edge crank designs.  We can provide plastic templates for initial fitting and adjustment.

 

We have included some representative pictures of the scrapers we make.  If you would like to see a picture of a particular scraper please ask -- we would be more than happy to send one through.

 

When available (please enquire) our zero-clearance TeflonŽ scrapers run an additional $100.00 to the cost of the standard steel scraper unless noted.

 

Remember, your vehicle may have an engine made by a different manufacturer so check both product lines.  If you are still unsure, please contact us.

 

Chrysler/Mopar

 

 

Note: If you have a Jeep straight six (4.0) please see the AMC page.

 

 

ALLPAR.COM can help you with loads of information about your Mopar!

Here are some links of both discussions and articles written by Mike Holler.  He has some really interesting ideas regarding how to make more power without radical modifications.

http://www.allpar.com/fix/holler/
 

 

 

 

 

The 2.2 and 2.5 scraper designs have been updated.  The scraper substructure is constructed from thinner gauge steel that is approximately the thickness of a normal compressed gasket.   The opposite side spacer has been altered to become a scraper which operates on the downstroke versus the upstroke for the scraper plate on the opposite side -- so now you have a dual scraper system.   A TeflonŽ version is also available.  $69.95

Please let us know what engine you have, for example: early 2.2 NA, late 2.2 NA common, block , 2.5 NA, 2.2 T with cast crankshaft, 2.2 T with forged crankshaft, 2.2 T common block with forged crankshaft - NO balance shaft assembly, 2.2 T common block with forged crankshaft and balance shafts (stock T3 & T4), 2.5 T, 2.5 T - balance shaft assembly removed.

FWD Performance is your source for 2.2 and 2.5 Mopar performance!

 

Here is an extremely informative article covering a 2.2 turbo engine rebuild by Bob O'Neill.  Pay particular attention to the oil pump outlet modification and the suggestions on bearing clearances.

NEW! There is now a dual windage tray and baffles setup for the 2.2 and common block 2.2 and 2.5 engines with balance shafts removed.  The setup includes oil baffles with trap doors for the sump and piston bay segregation baffles that help to prevent windage from traveling along the crank -- this is technology you see in Winston Cup engines, for example. A special oil port block-off washer is included for people that have not already removed their balance shafts.The pictures below illustrate the setup.  The setup runs $399.95.  The setup will work with existing scrapers supplied by us or Gary Donovan.  What you will need to supply is a 2.2 turbo or 89-91 2.5 oil pan and a 2.2 oil pickup tube as pictured below. 

Pickup needed for 2.2 or 2.2/2.5 CB setups

 

Oil pan needed for 2.2 setup:

 

 

Setup pictures for CB (2.2 similar):

 

 

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Neon 2.0  -- Also known as 420A, S4RE or D4RE:

NEW! Dual scraper that works on both the up and down stroke

$79.95 

TeflonŽ version $100 additional

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Dual-windage tray setups with oil pan baffles and trap doors for the Neon 2.0:  Note these pictures do not show the dual scraper that now comes with the setup

The stock 2.0 engine in the "Cloud cars" (sohc and dohc -- often referred to as the 420A block or S4RE or D4RE) lacks a windage tray or any oil baffling in the stock pan*.  Many people have written to us and commented in forums that they experience drops in oil pressure when driving enthusiastically.  The stock oil pan is actually a high quality piece it just needs some oil control hardware.

We now make a dual-windage tray for this engine with louvers and lower baffles with swinging doors. (See above pictures...) It attaches to a modified crank scraper (steel or TeflonŽ) framework that has bridges across the crankcase. The dual-windage tray has a top louvered section that can be adjusted to closely follow the rotating assembly. Underneath this louvered tray is a second tray with offset drain slots. The trays are separated by a gap of 4.5mm. These drainage holes and gap allow the top louvers to quickly direct the oil out of the path of the rotating assembly. Conversely they also help to isolate the rotating assembly from splashing sump oil that would otherwise come through the louvers. The two lower oil baffles have three independent swinging trap doors that help to keep oil around the pump pickup during hard turns.

Another advanced feature are the four attachment baffles that hold the windage tray assembly to the scraper frame. These are solid plates that help to segregate the piston bays. Why? When one area of the crank has a high concentration of oil in the windage cloud the crank acts like a propeller and distributes this oil along its length. By closing this path off the oil cloud is instead focused into the tray louvers and of course the crank scraper. You can see this type of feature in the Ford Zetec sump and other racing engines.

Lastly, as you can see in the above pictures, there is plenty of clearance for the oil dipstick and the dipstick readings are unchanged.

The windage tray and baffles are $309.95 in steel -- remember this includes the dual scraper.  The dual scraper is also available in a TeflonŽ version.

The dual steel scraper alone is $79.95.

*Important!  There is a steel and aluminum stock Neon pan as well as another steel pan for this engine when installed in DSM vehicles like the Eclipse.  Each of these pans has a very different internal shape and requires a different set of lower baffles and trap doors.  You must let us know which pan you will be using.

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Early 2.4 as in Stratus, late 2.4 as in P.T. Cruiser, 2.4T (as in SRT): NEW! Now a dual scraper design for engines with balance shafts in place. $89.95

The special joints allow for a gas tight seal.  RTV silicone gasket maker should be used to seal the scraper to the block and pan.

This scraper is a replacement for the stock pan gasket.  The SRT4 and P.T. Cruiser Turbo gasket already has a scraper built into it but this scraper offers far more coverage of the rotating assembly.  It has acceleration trap doors to help stop oil from climbing the rear of the pan -- great for drag racers.  During normal operation the doors allow draining of oil from the side of the block that settles on top of the scraper.

 

The difference between the early and late engines is the oil pump and this changes the oil pan flange.  We have versions for both the early and late engines or whatever motor you create in between! 

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For 2.4 owners that removed their balance shafts we now have a dual-louvered windage tray with baffles and trap doors available for the Early and Late 2.4 as used in the Neon and PT Cruiser, among other vehicles (see pics below and additional info in the Dodge SRT4 section).  It attaches to a modified standard steel or TeflonŽ (Patent Pending) scraper framework.  It has interior walls that help to segregate the piston bays.  This helps to inhibit the travel of excess oil in a windage cloud from one area of the crank to another.  The windage tray, baffle and scraper setup is $359.95.  You get to keep your high quality cast OEM aluminum sump but with better oil control.

Also, you will get our special block-off washer to use to cover the oil feed line to the balance shafts.

Latest updates! Now dyno tested and proven!  This setup has a total of 5 independent trap doors -- two in the sump to control oil movement from side to side and three on the underside of the scraper frame.  These three close under hard acceleration when oil may try to climb the backside of the block.  Ideal for drag racing!  In the front is a shelf that helps block oil from climbing the frontside of the block under heavy braking.  Ideal for road racing!  A dipstick guide tube makes installation even easier. Directional screening now covers the louver openings on the top windage tray.

New!  The setup now includes a dual scraper

 

 

 

 

 

We also have windage tray kits to fit the various strap kits being offered: $409.95 for steel scraper kit; Teflon $100 additional

Note: the baffle designs on all models have been updated with a Teflon collar for the pickup tube.

 

 

Read the feedback from one of our customers:

----- Original Message -----

From: William Stox

To: Kevin_Johnson@crank-scrapers.com

Sent: Friday, June 05, 2009 7:01 AM

Subject: Windage System for SRT-4

 

I felt it appropriate to share my initial results after installing your Windage System for the SRT-4.
Unfortunately, I am not a lab, and it was not the only change made. However, the other changes should have had little difference on performance. I put in a new set of plugs and wires, though there was no indication of a problem with spark, and could not tell any noticeable difference in the car from doing so. I also replaced the 3" Mandrel bent exhaust with a similar 3" Mandrel bent exhaust, which removed the muffler. (This could have gained 5-7 hp). The only other real change made, was to put your windage system into a car that already had the balance shafts removed. We carried it to a 1/8 mile track. The previous trap speeds on the car were 87.45 mph in the 1/8. The new trap speed was 92.95, or about 40-45 hp of increase. Let's just say, I'd have been very happy with half that improvement, especially for the money spent. I'd recommend that system for anyone who wants to make power from their SRT-4!

 

 

 

 

Craig Dabbs

 

Some customers like to use the special oil pump pickup made by Darrell Cox Racing. Darrell Cox Racing

No Problem!  We have a special baffle designed just for this application and it doesn't cost any extra if you specify it when you order your setup, otherwise it is only $35.00:

                  

 

Some racers are using the early 2.4 pan and oil pump in later vehicles since it is easier to run a remote filter and cooler with that setup.  If you are using the early 2.4 pickup please let us know because we also have a special baffle just for that pickup.

Below: Steve Lockett runs the 2.4 windage tray setup in his 9.7 sec 160 mph Neon

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Slant six:  170, 198, 225  Click here for the Mopar Slant Six page

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V6: Mitsubishi 6G72, 6G73 There are a number of variants.

4-Bolt 6G72:

The dual scrapers ($74.95) work on both the up and down stroke.  The tight clearances of the girdle to the inside of the pan dictate that the scrapers have varying coverage from the first through third bays.  The scrapers are made from 18 gauge steel and are to be sealed with RTV silicone gasket material.  The windage tray runs $199.95.  Note there is another design for two bolt blocks -- see below.

Below: the prototype set fitted to Wayne Kasel's block:

Wayne Kasel was incredibly helpful in the development of these parts.  He supplies high performance parts for the 3000GT and Dodge Stealth using both the 4-bolt and 2-bolt engines.  Inquiry about car parts 

 

 

Below -- the main bolts are installed and torqued and then the screening insert is installed.

(Girdle is not included)

The windage tray covers the entire rotating assembly with directional screening.  The screening strips oil away from the rotating assembly and allows it to pass through to drain to the sump.  Simultaneously the screening shields draining oil on the floor of the pan from being hit by high speed droplets of oil and aerated:

[girdle not included]

The windage tray is designed to use the 16 stock bolts.

Two bolt 6G72 tray -- this tray was designed to clear the many variations found in the two bolt girdles over several generations.

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V8:  

John Shaul runs an Ishihara-Johnson crank scraper in his 1963 Max Wedge Plymouth

B: 350, 361, 383, 400   RB: 383, 413, 426, 440  Numerous stroker versions available!  Now -- new dual scraper design $69.95

These pictures show the added scraper on a 4.75" stroker we made.  The added blade works on the downstroke.

Wilson Martin of Kingsville, Texas reported that he picked up a shade under 15 hp at 6275 rpm using our scraper on his stock stroke 440.  The dyno curves began diverging at 2800-2900 rpm.  He did a baseline pull with a CRE girdle and Milodon louvered windage tray in place.  He cannot recommend the CRE girdle highly enough, by the way.  You can reach CRE at (309) 266-8084 (CST).

Chenoweth Racing Enterprises 

This picture shows the first test pattern fitted to the block:

Kevin, this is just a note to let you know about the results of
installing the crank scraper on my 440 Chrysler drag car. I won the
first time out with it on the car and the oil pressure has NEVER!! been
this stable while racing, or hard on the brakes. Plus, the car ran the
best E.T. ever in weather that was less than ideal. I can hardly wait to
give it a little tuning.

Thanks for working with me,
Marvin Brautigam
 

 

NEW! Rear windage tray for big blocks

During hard acceleration in the big block the oil rushes to the back of the motor where it can then easily splash up and hit the rotating assembly.  This robs your engine of valuable horsepower and can allow the rear bay rings to become overloaded with oil -- a prime cause of detonation.

The small tray we make is designed to work with most existing windage trays and complements the dual crank scraper we manufacture.  It closely hugs the rear most counterweight and helps to shield it from oil that reaches the back section of the pan.  It incorporates an adjustable scraper to quickly eject any oil that does enter. 

The ovoid drain hole matches up to a hole in the scraper pattern; a small extension shields that hole and directs the ejected oil to the side of the pan.  This extension can be trimmed to fit within existing windage trays:

   

 

Rear of stock pan

 

$49.95

 

 LA: 273, 318, 340, 360

Dual scraper design works on both the down stroke and up stroke of the engine!  $69.95

Teflon version for $169.95:

 

New downstroke LA scraper with shield and screening. This version is pan and stroke specific -- also it is important to know what main caps you are running.  If your pan is similar in design it can be adjusted by the owner using basic sheet metal hand tools.  Designs for additional pans will be done with owner's pan being shipped to shop for fitting or detailed pictures being provided.  This design reaches into the 1st quadrant ATDC and directs oil into a shielded area.  This area has directional screening within it to slow the oil and then protect it as it travels to the sump floor.  The louvers are adjustable.  This price is for the downstroke scraper only $199.95

 

Congratulations to Myron Piatek and Locomotion Racing, 2008 Division 2 IHRA Champion!

 

 

 

 

 

Copyright 2002-2010 All rights are reserved on our product designs -- a great deal of hard work goes into each one.

TeflonŽ is a registered trade mark of E.I. du Pont de Nemours and Company. Only DuPont makes TeflonŽ resin sourced by Ishihara-Johnson Crank Scrapers from authorized DuPont licensees.

We Ship World Wide!

 

 

If you are in need of a dry sump system we suggest you contact Armstrong Race Engineering.  They provide top quality components and many times our scrapers can be used in combination with their pans.

 

They make top quality parts.

 

 

RESEARCH & DEVELOPMENT * MANUFACTURE * SALES
Makers of Custom Solid Copper Head Gaskets

 

 

   
Jean-Claude 1919-2003
A good friend.