Carb formula 1 v8

**Freddie Webb** · 10-31-2015, 09:57 AM

Racer is also correct saying the bearings are crossflow on the wrist pin as well as the crank pin. Racer is also correct about the carbs being different as I have two sets. One being very close to the 235 style but stuffed from the factory and the other style is what I refer as front loader, but I don't know the proper name.

**CUDA** · 10-31-2015, 10:12 AM

I use to see the F1's run in Pittsburg Pa, three rivers area, had to be the best racing I ever saw ...
To go from 130+ to a one pin turn again and again ... special
Use to be friends with Pat Eves from OMC he helped me out in many ways
Boat racing at it's finest .

**baja200merk** · 10-31-2015, 10:17 AM

Looks like the exhaust port is tapered also. I know square ports make power but the taper makes me feel like the rings r thanking me every time it fires up

im shocked it's got crossflow stuff in it. That era looper cranktrain is like a diesel.

**jjmalkow** · 10-31-2015, 10:31 AM

What are you running it on? Vintage tunnel or something? Awesomeness!

**racer** · 10-31-2015, 02:07 PM

The V8 race engine was developed before the production looper, the main reason for the crossflow bearing size is that the smaller crank pin has less bearing speed which increased durability at high rpm. Dome on piston is similar to the 60 degree carb engines with pin closer to dome as they run a longer rod than the 60 degree production engine. Same starter was also used on the triple c engines.

Fred the front load jet carb is first generation, the ones on the engine were much better around the corner. I had a set of each when we closed and sent them to Greg at Sea-way if you need any. I also sent him some ignition parts.

These engines also had 2 exhaust systems, the one on Fred's is the earlier design. The later EFI engines also had different rods. Were also produced in several displacements 3.0 and 3.5 being the most common.

**rude tim** · 10-31-2015, 04:52 PM

Originally Posted by baja200merk

Looks like the exhaust port is tapered also. I know square ports make power but the taper makes me feel like the rings r thanking me every time it fires up

im shocked it's got crossflow stuff in it. That era looper cranktrain is like a diesel.

The flatter the roof of the exhaust port the harder the hit when you reach the powerband a more rounded roof makes a smother transition / broader power band. You want to see extream example of straight across and huge width bridge port look at a Honda road racing 125 cylinder, the port is real close to 95% of the bore diameter.

**perfmarine1** · 11-02-2015, 06:26 PM

Funny the part # is the same as stock carb with choke flapper.

http://www.amazon.com/Carburator-for.../dp/B00K5430LM

**Freddie Webb** · 11-02-2015, 06:28 PM

Greg what is that suppose to mean?

**Freddie Webb** · 11-02-2015, 07:05 PM

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The front

loaded carb has the same number also but I can assure you they are different. My guess is all of these 1 3/8" carb bodies were from the same mold but just machined differently. These have never been machined to accept "choke flappers"

**TMc** · 11-02-2015, 07:20 PM

Freddie is there just one main jet for both barrels ?

**Freddie Webb** · 11-02-2015, 07:59 PM

Tim I will take it apart tomorrow and take some pictures.

**powerabout** · 11-02-2015, 08:00 PM

I think there is 3 exhaust designs

**TMc** · 11-02-2015, 08:01 PM

10-4 Thanks

**Freddie Webb** · 11-02-2015, 08:07 PM

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Side view of where the choke flappers would be.

**Freddie Webb** · 11-02-2015, 08:17 PM

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I forgot who ask for this picture but here it is. And before comments are made that is klotz benol on the cylinder wall. Those who have run it before know what a mess it makes if you don't flush with conventional oil before storing.