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The HCF solution coverts a manual H-pattern to a paddle shift. It operates the clutch and mimicks the shifting motions that a human was intended to make. The ST6-M is sequential so all that’s needed is linear forward or rearward motion... nothing could be simpler. This can be done manually via...

Do you mean an Albins ST6-M?

I just finished a neat part that would have been very difficult to machine without a rotary table. I thought the following accelerated fabrication video might be of interest (there are basic comments in the lower right corner). I sure wish I could fabricate parts that fast! The part is a...

Emanuel, The picture that you posted is for an expansion tank. The line from its pressure cap is plumbed into an overflow tank, typically the bottom so that when the system cools down water, rather than air, is drawn into the expansion tank. The expansion tank is pressurized whereas the...

Brain, I tweaked the original design a bit. The first post lists the changes and second one shows the completed unit. (50) S2's Build Thread | Page 24 | GT40s (50) S2's Build Thread | Page 25 | GT40s

Chris, thanks for the compliment. It's a lot of work! Fabrication of the 180 cross-under headers has begun. The first step when routing anything, especially hard tubing, is to establish the start and end targets. Setting up the starting points was easy. I simply bolted cast stainless steel...

Randy, I've learned a lot and I'll do a big write up at some point. Howard, my ERA cobra has a foil in the radiator inlet. I'm planning on designing a new splitter and I'm going to investigate if a foil in the inlet helps much with downforce. I ran your situation past my aero guy and here is...

You are correct that the registry doesn't do a lot, but that doesn't mean you shouldn't do it. My subscription service has massively reduced the number of SPAM calls that I receive. If you want to put a big filter up, use a service that screens calls. It lets numbers in your contact list...

Register your phones with the National Do Not Call Registry (National Do Not Call Registry | FTC Consumer Information), configure your lines to not accept anonymous callers, and subscribe to a spam service. Both iOS and Android have call SPAM applications and most wireline and wireless providers...

Randy, I posed your questions to my aero guy and the following is his response. The CFD images are of my car because the F1 stuff is obviously proprietary and confidential. The drag numbers are for a custom C&R radiator with a thick core, fan shroud and drop in fans (i.e., different than stock)...

I mounted the transaxle cooler to the custom tail sub frame (more about that later). I used the same vibration isolators that I used on the intercoolers and mounted them with four tabs that I designed and laser cut from 0.104” mild steel. The upper two were bent and tacked to the tail sub frame...

You need a shroud with good fans while sitting in traffic. The shroud restricts airflow when the car is at speed so flaps should be added where appropriate. The thermostat will manage engine temp. You could restrict airflow through the radiator to better optimize engine temp. I've seen people...

Terry, I think that there are multiple answers even when the powerplant and use case are the same. Whatever the approach, once you have a radiator you've locked into the area of the radiator core (A) and the radiator heat conduction coefficient (K) and you don't have any control over ambient...

Mesa, the other Scott's car is an Apex Dave, I had read that thread back in 2018. Your point about the location of the outlet was spot on, but the ensuing discussion left me more confused than before I had read it LOL. There are several SL-C owners who point out that they don't have issues, so...

My radiator is tilted at 55 degrees which he indicated was fine. He had a rule-of-thumb angle at which he said you needed to be very careful and do CFD and wind tunnel testing to ensure good mass air flow. I don't recall the angle, but I remember thinking I've only seen those types of angles on...

I’ve done extensive modeling of the radiator duct and outlet on the SL-C and here’s what I’ve learned. You want to maximize mass air flow through the radiator by maximizing the pressure differential across the radiator code. One way to achieve this is with a diverging-converging duct where the...

When I dropped the engine back in the automatic tensioner for the accessory belt hit the 2” x 6” chassis tube. This happened because I increased the supercharger belt from 8 to 10 ribs and I moved the A/C compressor and alternator to a 6-rib belt running off of a pulley mounted to the front of...

Family, friends, schools, etc. The one thing the state got right was the two Right to Repair bills!

I think the days of doing any performance mods that affect emissions or fuel economy are numbered. Despite having cats, the only way to register my SL-C in MA is earn a carbon carbon credit by crushing a viable pre-emissions car. You must purchase a pre-emissions car with a displacement larger...

One of the challenges with high-boost supercharged engines is belt slip. Harrop offers multiple pulley diameters, but they only have 8-ribs which doesn’t provide enough surface area. Upgrading to a 10-rib belt requires a bunch of changes including a new supercharger pulley. Harrop’s pulley has a...