Close



Page 20 of 20 FirstFirst ... 10181920
Results 476 to 481 of 481
  1. #476

    Default

    M
    Quote Originally Posted by billkandi View Post
    Not to take away from your M81 at all-it's an historical gem, but that RST is very nice as well.
    Yes that RST is awesome and fully built top to bottom including a nice interior, sn95 knuckles, engine and turbo upgrades, stereo and repaint looking great as well. I believe his name was Mike and he is a hard core Capri guy who has several and is trying to make all the RADWood events this year. His buddy drives the Starion and they both made the drive from Phoenix. I love Capris having owned an 86 GS 5.0 back in my 20ís that I wish I had not sold to buy a commuter car. I stay in contact with Charlie hoping some day I can buy it back.
    I wonder how many pics I can attach direct to FEP as my Flickr pastes donít work from my phone.
    Name:  49983F00-B16C-46B4-9C52-74942AF26B4D.jpg
Views: 75
Size:  143.8 KB
    Last edited by m81mclaren; 08-04-2019 at 03:54 PM.
    Current FEP:
    1980 M81 McLaren Carb Turbo 2.3T #003P ... IT'S ALIVE after a 22 year slumber thread!

    Past FEP:
    1986 Capri GS 5.0- very missed but in goods hands
    1985 LTD SSP- quick little fox 5.0

  2. #477
    FEP Super Member xctasy's Avatar
    Join Date
    Jun 2012
    Location
    Dunedin 9011, New Zealand, South Pacific
    Posts
    3,130

    Default

    Nice ride









    The lack of performance and cred of the turbo Carb Four was due to Fords decision not to tkae the advice of Scwitser and run a blow through carb system.


    Quote Originally Posted by xctasy View Post
    i have to be carefull to answer your questions.....Oh, and there's a reason Ford USA never went blow through aside from the first Paxton supercharged T-birds and 57 Fords and the 67 Shelby's....

    if a blow through carb ruptures a power valve or collapses a float or has a in service fuel delivery problem, in the words of Assistant Chief Engineer for the 1979 Mustang 2.3 Turbo Project



    Same with the blow through 1985 4-bbl Saleen PaxtonMustang conversion;

    should have been a shoe in for CARB emissions certification,

    but even the most excellent car sorters in the world had so many problems making a blow through carb work and be legal and safe, they avoided blow through carb instillations for years.


    Gale Banks,
    Austin Rover's MG Metro 1275/ MG Maestro2000 and
    Ford of Europes 2.8 Capri Turbo and
    Alfa Romeo's TurboDelta and
    the Lous Esprit Turbo were the best blow through conversions.

    The R5/R18/Feugo Renault Solex 1-bbl blow through carb instillations weren't very reliable because of in service fuel dlivery problems.


    My summary?

    Norm General from Ford was right,

    but if your carbs are in good shape and you have a good, robust and well sorted fuel air distribution and linkage, Holley Weber 5200's will be a great blow thru carb.


    This all goes back to what I said a while ago. If you use Webers carb to get an inital jump on horsepower before turbo charging is added, then a low pressre, less than 12 pound boost turbo with a mechanical fuel pump and Malpasi rising rate fuel regulator will allow a Weber carb to run easily and simply underboost.

    The Italians, Germans (Zakspeed 2.8 Turbo Capri) and English made blow through turbos work by simply understanding what a carb does, and by using moderate boost increase, not huge ones.

    Getting reliable 40 to 65% power boosts with just 9 pounds of boost was because they understood how to make the basic carbs work properly.

    You absolutely need to consider how great a draw through carb can be.

    gr79 nailed it when he got the 350 cfm 2305 Holley 2-bbl carb to work.

    For your Ford, you only need to

    1. change out the exhaust to SVO spec to lower backpressure, and
    2. put a proper primary cat to turbo cross over pipe without those crazy bend restrictions.
    3. The carb can go up to 31 and 30 mm venturis with proportionally larger jets, with the secondary made simulatneous like the 38DGAS or 38 Solex used in the 1981 Zakspeed Capri 2.8 liter, a true 200 hp engine.
    4. All the emissions gear can stay,
    5. you convert the carb to mechanical secondary, and
    6. you water/metyl alachol mix to charge cool it for the high compression ratio.
    7. The fuel pump can be uprated to the SBC NASCAR or Holley Strip Dominator type and looped out to a lower pressure with a Malpassi or other fuel pressure regulator
    8. A Five speed T5 based on the same unit gr79 has.

    The igntions Sol's, the VOTM, the EGR TAB/TAD, the HP Screw..... all that jazz can stay, you just need to let the engine have a proper 350 cfm of carburation without the restrictions of the exhaust and 280 cfm stock carb.

    And add the stock under hood cool air induction scoop.

    Hiding in that engine is another 99 horsepower restricted by the exhaust backpressure and carb sizing.

    See



    https://www.youtube.com/watch?v=VlMI9m-sn7I

    This is what Ford should have done.

    Mitsubishi's early unlead gasoline JDM carb turbo Colt, Tredia, Cordia,
    Gale Banks,
    Austin Rover's MG Metro 1275/ MG Maestro2000 and
    Ford of Europes 2.8 Capri Turbo and
    Alfa Romeo's TurboDelta and

    Lotus' Turbo Esprit.

    All mighty turbo carb cars.

  3. #478

    Default

    double-post; not sure how to delete.
    Last edited by m81mclaren; 08-08-2019 at 04:38 PM.
    Current FEP:
    1980 M81 McLaren Carb Turbo 2.3T #003P ... IT'S ALIVE after a 22 year slumber thread!

    Past FEP:
    1986 Capri GS 5.0- very missed but in goods hands
    1985 LTD SSP- quick little fox 5.0

  4. #479

    Default

    Thanks X I have watched intently all of your and GR's posts and they are excellent and much appreciated. I can actually now follow along having learned from you all and my reading on how carbs work. I did reset my mixture and timing following procedures after installing all the smog equipment & pump belt but need to revisit as it just isn't where I think it should be or even where it was earlier this year. More fine tuning is needed and a replacement timing light as mine just died. At full throttle/high RPM's it runs quite strong (I wouldn't call it very fast!) with good turbo sounds and safe A/F ratios. This allows me to keep up with traffic from stoplights but at part to 3/4 there's simply not much there and a little leaner than it should be. I honestly was not expecting more so it's no big deal but freeway on-ramps left me wanting for sure compared to my other cars. It was over 100 degrees that day and tons of stop and go traffic on my side of the bay so I'm sure that didn't help! The fan kicked on and off even 10 minutes after shutting down so the cooling system is working tops. Maybe over time I will play with a different setup like you guys suggest to extract all the potential.
    Last edited by m81mclaren; 08-08-2019 at 04:40 PM.
    Current FEP:
    1980 M81 McLaren Carb Turbo 2.3T #003P ... IT'S ALIVE after a 22 year slumber thread!

    Past FEP:
    1986 Capri GS 5.0- very missed but in goods hands
    1985 LTD SSP- quick little fox 5.0

  5. #480

    Default

    came across some amazing historical postcards and promo posters for sale that I thought I would share. Example inserted for attention.... but here's where I found the actual posters and cards for sale!

    http://www.performancepartsinc.com/mis.html

    Name:  m81poster1.jpg
Views: 30
Size:  255.2 KB

  6. #481

    Default

    Thanks Erratic my brother bought me a box of the postcards 15 years ago and I have 4 different posters with an M81 on it although I am sure there are more. I have this one with the indy car (personally my favorite!), the Daytona and the Sebring posters and the "1964-1984 Mustang A Legend Turns Twenty" poster with all the generations on it. The ones I will still get are the "Spirit of Competition" track posters from 1981 which I like the artist drawing a lot.
    Last edited by m81mclaren; 09-16-2019 at 02:08 PM.
    Current FEP:
    1980 M81 McLaren Carb Turbo 2.3T #003P ... IT'S ALIVE after a 22 year slumber thread!

    Past FEP:
    1986 Capri GS 5.0- very missed but in goods hands
    1985 LTD SSP- quick little fox 5.0

Page 20 of 20 FirstFirst ... 10181920

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •