Recent content by Al Seim

I don't know BMWs at all (unlike Mr Pettinato), but a few caveats: Prod is a lot more liberal than IT, but in very specific ways - some things aren't more liberal (aside from SPU!). Level 1 Prod is more liberal than Level 2. All the Z3s are Level 2. So read the Prod rule section of the GCR...

Hi Jimmy - If I understand correctly, the question is "does the spring rate change is a spacer is added to change the length?". No, a good race spring should have the same rate Or at least very close) at any compression.

Curmudgeonly warning re LEDs - there are LED bulbs out there that are quite bright viewed directly but that (presumably due to the spectrum emitted) are much dimmer when viewed through a red plastic lens. When we bought a used Focus SVT street car, I noticed that the tail lights (forget whether...

1. I agree that the ProdRacing site, for much of its life, was virtually unmoderated. That worked OK at times, and at times I think that it did a disservice to the Prod Racing community in that it was (at those times) considered by many to be a very toxic environment. I've been reading this...

Not sure if they still exist, but there used to be some local shops who relined shoes for industrial stuff, fork lifts, trucks etc. But I got mine from Porterfield.

Check out https://scientificrabbit.com/

My favorite is 100LL Avgas. (1.6 LP HP VW). Half the lead of most race gas, long shelf life and highly consistent, and typically quite a bit less expensive. What's not to like? Can be hard to buy as it's illegal to sell for street use so some FBOs interpret that (incorrectly) as only allowed...

There - I created a real data acq tech discussion thread. Greg - have you used that dual channel Bosch sensor? It looks intriguing. It does appear to have an unusual taper seal seat near the nose, but looks as though it might work with a regular copper washer. I agree with your sensor...

Trying to unhijack the FP Runoffs thread: Correct me if I've got this wrong, but it's my understanding that there was a rules interpretation ruling at the runoffs to the effect that the general allowance to coat driveline parts extends to intake manifolds, in this specific case, the exterior of...

Is Red Line CV2 a good choice for a very high temp wheel bearing grease? I've discovered that my VW wheel bearing cartridges come apart easily w/o damage so I think I'll replace the stock grease with "better" as everything in that area is HOT. Is Red Line CV2 a good choice? It shows a workung...

This one qualifies for the department of outdated technology - I run an HP VW Scirocco 1.6, and like many folks run a bit sporadically. A few years ago I had a pretty good setup on 8x20x13 Hoosier C2000 tires, the car handled well. I took a few years off and came back last season using C3000...

Hi - Installing a right side net in my VW. What's a tidy way to limit the straps from sliding sideways along the cage bars w/o welding? Al Seim Race Technology USA HP VW Scirocco 1.6

Who's coming in Prod and GTL? I am. Al Seim HP VW Scirocco 1.6

My HP 1.6 Scirocco is too close to the sound limit for comfort so I need to revise things. Right now it's running an L shaped system, 2.25" pipe, exiting in front of the left rear, with a short bullet glasspack (Dynomax) in the short leg of the L and a turndown on the exit. Turndown is within...

Who's coming to MARRS 4 at Summit Point on June 20-21? WDCR doesn't charge the credit card early any more so it's safe to register early. I haven't raced for a couple of years so need some prod cars there to help me remember which way to turn at the end of the straight! Greg, Frank, Mike...