Jump to content


  • Content count

  • Joined

  • Last visited

  • Days Won


mender last won the day on March 17

mender had the most liked content!

Community Reputation


1 Follower

About mender

Profile Information

  • Gender
  • Location
    : Alberta
  • Interests
    Too many.

Recent Profile Visitors

10,999 profile views
  1. Tight field yesterday: 8 car within one second of the fastest lap and half of those in the top six.
  2. They all run power steering.
  3. Protests

    Yes, could get more out of a 427 but even an aluminum block would weigh more than the iron block stroker 421, which would be more important on this particular car than ultimate hp.
  4. Protests

    421 cid, 10.6:1, 664 hp @ 6200 rpm and 576 ft lbs @ 4800 rpm. SBC or BBC?
  5. Protests

    Most OEM ecu can be flashed for much cheaper than an aftermarket unit. The magic is in the tune, not the hardware.
  6. Protests

    Some combos seem to add up to more than they should. 383 SBCs are a good example of that. Did two just before Christmas, one got to the dyno (centrifugal supercharger, made about 600 hp on moderate boost) and the other got sold when the owner suddenly lost interest in building a car. You can now buy stroker cranks for about the same price as a regrind so for most stuff it's a no-brainer. Lots of reasons why stroker kits are so popular!
  7. Jumping around by ten degrees isn't the same as have a range to set the timing in. 2-3 degrees movement is about all you should consider normal.
  8. I figured so but I've had some odd conversations of late ... and had to literally spell out what I wanted to say because it kept getting changed. I'll relax. I usually stick with 5k for mine on dino oil, easy to remember.
  9. 15,000 miles. I have to laugh whenever I see a rough guess that was in feet or miles or whatever get converted to metric and suddenly it's 3.03 metres or 1136.4 kilograms or -17.8o Celsius.
  10. Protests

    Actually, stroking is a win/win: it increases the torque output and also increases power. Gearing takes care of where the peak events happen but we'll ignore that for now. Actual power output will depend on where the airflow bottleneck is. Two examples with dyno numbers come to mind: 1. Pontiac OHC 250 six: two street engines that I built with the only significant difference being the stroke and displacement. Same cam, same head and porting, same compression ratio, same intake, carb and exhaust. First engine was 250 cid. Results: 244 hp @ 5200 rpm and 277 ft.lbs @ 3900 rpm. Second engine was 300 cid: Results: 267 hp @ 5200 rpm and 307 ft.lbs @ 4100 rpm Synopsis: 20% increase in displacement gave 9.5% increase in power and 11% increase in torque. If the airflow and cam timing was proportionate to the displacement change, one would expect closer to 20% more torque and power. I did an update recently on the 300 cid engine with race porting and cam, higher compression, and triple Webers to noticably boost airflow through the engine. Result: 367.6 hp @ 5500 rpm and 386.2 ft.lbs @ 4100 rpm. A lot more from optimizing the rest of the package. 2. GT-1 SBC: two engines for the same customer, one that was for the race car at 327 cid and one for his streetable older Corvette at 421 cid using up some of his old race parts. In this case, the combos were quite different but well matched to the expected operating ranges and purposes. The 327 was 13.4:1 and lots of good parts as needed for the expected rpm range. Rev limiter was set at 8200 rpm but usually shifted at about 7500-7700 rpm. Made 664 hp @ 7400 rpm and 487 ft.lbs @ 5600 rpm with a decent torque curve as befits a road course engine. The 421 was 10.6:1 to run on pump gas and the rev limiter set to 6500 because of the rods and street use. It made 664 hp @ 6200 rpm and 576 ft lbs @ 4800 rpm, again with a fairly flat torque curve. Same power despite a large difference in size. The 327 suffered a rocker arm failure and to continue running the series and getting points, the street 421 was stuffed in while we waited for parts. His lap times dropped about a second and he was much happier with the car because he didn't have to worry as much about shifting at exactly the right time. The 421 stayed in for the rest of the season and received Cosworth rods in the winter rebuild because the engine pulled hard to 7000 rpm (lowest chip we had) and he wanted more rpm to play with. Rev limiter is now at 7500 rpm. A more appropriate cam and compression ratio would bump the output closer to the 700 hp mark but he really likes the low cost of pump gas vs C12. Bottom line: a stroker doesn't always add as much power and torque as the displacement but it makes a car easier to drive and usually drops the lap times as a result. Even on the street, my son's E46 325ci was much nicer to drive after the 330 engine was swapped in.
  11. 2018 petitions

    I've never gotten a straight answer about the reasoning behind covering the filler hose with a thin layer of metal. Mike Coppolla's installation has an extra metal layer that encloses the top of the tank but leaves a section of the filler tube visible. I'll be copying that for the other series because of their fuel cell rules.
  12. 2018 petitions

    With my setup I can see the fuel coming up the filler hose and slow down the pour. No spillage. The fuel funnel sits vertically into the filler neck just in front of the windshield and we pour directly from the jug. The overflow/vent line (black tube behind the filler tube) exits through a NASCAR vent valve and out the side of the car, away from all hot pieces. Never had any overflow fuel.
  13. The '87-'88 Fiero is 233 lbs/gallon; an earlier one is 278 lbs/gallon. As you predicted, the Fiero is moving to a different series and already has a 22 gallon fuel cell. Sounds like a lot but that is about the same FWR as the right 944 or 240Z.
  14. And the one that's closest to what the factory built is the car with a 4" strip of metal out of the middle to make a shorter wheelbase. All the same parts otherwise.
  15. Personally I think a T-bird disguised as a Mustang (same platform and parts, different wheelbase) would be less of a stretch than: a 2.0 crv suv/vtec integra disguised as a 1.6 '92 civic or a 3.0/3.5 V6 maxima disguised as an 4cyl eclipse/240sx with race car electronics or a 3.3 V6 toyota sienna minivan disguised as an 4cyl mr2 with race car electronics or a e36/e46 bmw with race car electronics disguised as a 30yr old e30 bmw or the 3.0 V6 infiniti is actually a 4.5 V8 infiniti (list borrowed from another thread )