engine and drivetrain How do you identify a Korman Stage 1 engine rebuild?

[02Monster]

Do you need to take it apart and measure the specifications? Or is there a identification plate or marks to look for? Are the valves or pistons oversized from original?

TIA

02MonsterMike

[TMK-001]

Korman's stage 1 is simply a rebuild with first overbore pistons and stock cam. Some porting and polishing was performed. Korman states that it produces about 12% more power than a stock engine. So if you were to install a Stahl header or similar and a Weber 32-36 or 38-38 you'd have about 135-140 hp.

I read this the other day.

/edit - it was posted by you, so I assume you need more info...

[Otis]

I don't think there are any external markings by which you can quickly ID a Stage 1 from Korman. f it were me, and I had some question about whether Korman's had rebuilt or worked on a particularl engine in a particular car, I'd call Korman's directly, and ask to speak to Allen Patterson -- give him the specifics, and he can look it up for you in their records.

Does that help?

[Guest Anonymous]

One thing to keep in mind is a lot of people THINK they are geting one thing when in reality they are geting somthing elce. this is especaly true on engine rebuilds. Lots of people who get heads done think the engine is now rebuilt. I personal;y fine the 12% claim to be a bit much, maby that was on a tired engine before they got started on it I cant say.

sam

[schwarz75]

I have a Korman engine. The block is BMW blue. Also, the engine has a custom oil pan (enlarged/baffled) with a Korman sticker on it. I have all the paperwork from Korman, incl. the engine dyno information, valve clearance setting, timing, NGK spark plug and fuel recommendations, and all the tuning specs. of its Weber carbs.. Definitely phone Korman to see if they can give you any information.

[Emyers]

According to the folks at Korman, they do not keep historical records on engine builds. That is left to the consumer/purchaser. I tried to find some info on a suspected Korman motor (BMW blue Block) a few months back. I was told that unless someone there remembered building it there was no way to supply any info.

Earl

74 2002Lux

02 M Roadster

72 Volvo 1800ES

[BigDog]

A receipt...

Without one, you're speculating at best. Good luck!

------------

BigDog

'76 2002 Motor by BC & BD Stage "Heineken"

[c.d.iesel]

Stage 1 Clean Air Engine

In our Stage 1 Clean Air engines we apply our high performance techniques to extract maximum power from stock parts while making no changes that affect Federal or State emissions laws. Our flow tested porting , polishing, valve and valve seat work promote smoother, more efficient air/fuel flow keeping the mixture much better suspended for cleaner burning. Valve spring pressure is increased for a higher max rev limit of 7000 rpm. To reduce reciprocating weight and improve acceleration we lighten and balance the connecting rods, fit stronger light weight piston pins, and lighten the flywheel. Carbureted models include a Bosch Sport Coil, High Performance Ignition Wires, and Mechanical Advance Distributor. 10-15% horsepower increase according to model.

Stage 1 Clean Air Engine with Weber Downdraft Carburetor Conversion P/N 110W2100CA

Stage 1 Clean Air Engine-Tii P/N110T20CA

Stage 2 High Performance Clean Air Engines

These engines receive our Stage 2 competition-type engine treatment for maximum performance while still meeting emissions standards. Porting and polishing are more extensive than our Stage 1, valves and seats are re-cut for improved flow, and all valves are swirl polished. For increased high RPM strength we add dual valve springs, titanium valve spring retainers, and our Korman Rocker Arms. Instead of reworked stock rods, we install our light weight chrome steel alloy connecting rods for a very substantial reduction in reciprocating weight. Lightweight piston pins are included, and the steel flywheel is lightened or replaced with our aluminum flywheel. We recommend our light weight heavy duty Sachs Sport Pressure Plate and matching disc as appropriate add-on items. We include our competition type oil system modifications for improved engine lubrication. Carbureted models receive a Bosch High Performance Coil and Mechanical Advance Distributor. Thermal barrier exhaust coating is also included.

Stage 2 Clean Air Engine w/Weber 32/36 Conversion P/N 11002220CA

Stage 2 Clean Air Engine-Tii- P/N 1102230CA

Stage 1 Carbureted Engine

A moderate increase in compression ratio, special valve work, mechanical advance distributor, Bosch Sport Coil, and Korman-Stahl headers combine to extract about 12% increase in power over the stock engine. The stock cam is used resulting in a very fuel efficient, quick engine. Expect about 112HP with the Weber 32/36 conversion.

Stage 1 Engine P/N 11002100

Stage 1 Engine with Weber 32/36 Conversion P/N 11002114

Stage 1 Tii Engine (140 HP) P/N 110T2110

Korman Competition Engines

These engines are not designed or intended for use on public highways. They do not meet requirements of the Clean Air Act of 1991 or of the California Air Resources Board. They are offered for track use only.

Stage 2 Competition Engines

This is our most popular M10 performance engine. Lots of torque, smooth idle, rapid acceleration to 7000 RPM. This is a solid 150HP engine, yet when driven with a light foot can get up to 30 mpg. This engine utilizes dual Weber 40 DCOE's with Korman's 1 piece balance port intake manifold, Korman K-300 Camshaft, Bosch Mechanical Advance Distributor, Korman-Stahl Header, Dual Valve Springs, Chrome Alloy valve spring retainers, and Korman Rocker Arms. Connecting rods are lightened and balanced, cylinder heads are fully ported and polished. The engine is completely balanced and blueprinted. All boring is done with a torque plate for best cylinder roundness. Substituting the Schrick 292 cam yields an additional 10 horsepower. P/N 11002200

Stage 2 Competition Engine with Weber 32/36 Carburetor

Same as above with the economy of utilizing the two barrel downdraft carb on the stock (73-76) manifold. Dyno tests at 140HP.

P/N 11002220

Stage 2 Competition Engine-Tii 160 HP utilizing the original Kugelfischer Injection.

P/N 11002230

Stage 3 2.0L Competition Engine

Our hot autocross/rally engine. This is a light competition engine built for power. Don't expect 150,000 miles at 7500RPM, but it is designed to operate at that engine speed. This 170 HP engine includes the Schrick 316 cam, two twin 45 DCOE Webers, lightweight connecting rods, high compression pistons, titanium valve spring retainers, racing headers, etc. Blueprinted and balanced to competition specifications.

P/N 11002300

Korman M10 2.2 Liter Engines

This capacity is available in our otherwise stock spec motor, Stage 1, 2, 3, or Full Race Spec Motor.

The special crankshaft requires a different timing chain/oil pump/crank sprocket, a different front vibration damper/pulley, improved front hub assembly, custom light weight forged pistons with light weight pins, custom length competition connecting rods, special machining to the front timing cover, and machining of the block for clearance of the longer stroke assembly.

The Club Net price for this package adds $3200.00 to the engine prices.

We also recommend using larger primary size Stahl headers at an additional cost of $140.00 over our standard 2002 header. The ceramic thermal barrier coating adds another $205.00.

Weber carb jetting and choke size must be changed to handle the increased power. Our Webers are sold with jets and chokes fitted to your engine specs so there is no additional cost for this change.

It is characteristic of the dynamics of increasing stroke that there will be frictional and inertia losses at high rpm resulting in a top end increase of only 5-7%, but producing and impressive 20% or more increase in bottom end torque. The great advantage here is a very substantial increase in acceleration without having to work the engine hard with high revs. Smooth, strong response is coupled with increased durability.

M10 2.2 Engine Kit P/N 110S0022

[schwarz75]

Thanks for the information C.D.

For what it's worth, the stroked Stage III Korman engine nearly doubles the HP of the stock 2002 engine (approx. 6,700-6,800 RPM vs. 6,000 RPM) and torque goes from 115 to over 165 (5,500-5,600 RPM vs. 3,200 RPM).

[SirJojo]

So Korman engine is reliable? Is stage 3 suitable for daily drive?

 

sorry bringing up an old thread

Edited October 11, 2018 by SirJojo

[schwarz75]

In my car's case, it was fine for street use. Daily driver, like a person's only car? Maybe. I have a few old BMWs, and have collector car insurance on them, so I only rarely drive one to work. The Korman-modified 2002 is now with its new owner in Southern California.