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Does anyone know the BMW (or other mfg's) models that used the Pierburg CWA400 and if it was controlled by PWM, LIN or some other variant by BMW? Seems Pierburg has thrown some wrenches into our sandbox. 1) The CWA400 no longer is controllable by PWM, since March, 2024. You can add a control...

Randy, The Pro-1 joints are made by QA1. They offer a standard and a high misalignment, the difference of a 'T' in the part number. Did you order the wrong ones or did you paste an incorrect link? This is a link to both QA1 and to Speedway...

I am studying different ways to incorporate a thermostat into an electric pump system. My location suggests that I include a heater in the build to allow me to cruise in some of the colder months. And for a heater to be effective, it needs to warm up quickly - thus the need for the thermostat...

Knowing that space inside the spline of an RCR is limited at best, I am curious if anyone has moved the rear brake line tee to the engine compartment so there is only one brake tube running through the spline? Also saves some material. What am I missing?

Randy, in post 65 above, you show a picture of your setup using the BMW thermostat and Meziere pump. I am trying to configure a similar setup using a Pierburg CWA400. I am unfamiliar with the flow path/characteristics of the thermostat and can only guess at the connections from the pump and...

Prepping for my GT40, I currently have an enclosed trailer (8 x 16) which the car will fit into. But it does not have a side escape door. I think this will probably be a necessary modification. Does anyone have the height of the lower door edge from the ground? Preferably from an RCR GT40 MKI...

For those using transaxles that come with a bellhousing, you can indicate the adapter plate and then again indicate the bellhousing (the adapter plate may be redundant, but closer is better) But those using transaxles with a one-piece case (ie, Porsche), and ideas on how to do them?

Glad to see you were able to sort out your site access issues Paul Proefrock

I am looking to become more familiar with the process of aligning the Ford Crankshaft with the transaxle input shaft. My background has been front engine, rear wheel drive and I know the importance of aligning the bellhousing with the crankshaft. The TKOs used in my cobras were very sensitive...

Brian, It appears Pierburg now offers two styles of the CWA400 pump. One is prefixed "LIN" (Linear?) the other is "PWM" We use the PWM version which is still available per their site this evening CWA400PWM Paul

OK, I'm sold on the CWA400 pump but as I research purchasing, I am seeing a lot of knock-offs. Amazon has them from $89 to $548. Few if any are identified as Pierburg pumps. Most all are foreign-made units, which I am very skeptical. Has anyone had any experience with any of the clones? Is...

Dave, Very interesting approach. Was yours done in sheet metal or fiberglass? Some of the approaches I've seen appear to be a formed wall. Curious how it was mounted and what the internal arrangements were Paul

Randy, Is there a thread on how you chose the CWA400 over the 200 or 150. Is bigger better when you use an electric pump? Can they be oversized? Paul

At the recent GT40 Renunion, Colton's green RCR Mk1 incorporated a second bulkhead or 'wing' to enclose & mount some of the hardware. His build dates back to before 2010 and included a rear mounted rollbar as was supplied then. They then filled outboard of it with a sheetmetal panel. This...

I'm in. Paul Proefrock

Looking at the original rear bulkhead window frame illustrated here in a couple of different posts, I see three mounting tabs: one on the bottom and one on each end. Everyone claims this is the original style - I don't have a copy of GT40P/1/2443 drawing to confirm or deny this. Looking at...

Randy, The SAE papers submitted by Ford and the FIA papers from F.A.V. both show the wheelbase to be 95" (2413mm) - You're just a bit short. If you need copies of the documents, let me know Paul

Rick, I am aware it isn't the Hartwell latch. It is the 'low price version' supplied by RCR. I used that picture since it depicted the openings well.

As I impatiently wait for my RCR GT40 to be built, I am trying to address some of the items that will come up during the build. One of those is the Hartwell-style latch used on the front and rear clips. To those who are in process or even completed, can you help me with some dimensions from the...

Ok, I understand your reference now - and no, I wouldn't recommend them for the end of your wishbones.