Page 2 of 2 FirstFirst 12
Results 16 to 30 of 30
  1. #16
    OVER-BOOST!! svono50's Avatar
    Join Date
    Apr 2002
    Location
    Streamwood, IL
    Posts
    3,573
    SVO's: 86 1C
    Quote Originally Posted by Curt C View Post
    I have several BFH's for massaging purposes. I ordered those M&M pieces along with a new rag joint, sway bar bushings and end links as they were starting to rot a bit. That will be a good start. The shocks work okay but are near the end of their lives. I have the fronts and rears on full stiff and the ride is still very compliant.

    Quick question: Why are the old threads all closed? Is that just for newbies?

    Edit: Hey I got 4psi of boost now! hehe.
    No BFH needed for the 'adjustment' on the 4-pt, I just used a small adjustable wrench to fold the edge down a bit (see below).

    Click image for larger version. 

Name:	K-member - Passenger_Rear_Flange Clearance_03.jpg 
Views:	12 
Size:	107.8 KB 
ID:	45867 Click image for larger version. 

Name:	K-member - Passenger_Rear_Flange Clearance_01.jpg 
Views:	12 
Size:	128.6 KB 
ID:	45868
    Ted
    86 SVO Mustang
    17 Cooper S Clubman ALL4

  2. #17
    OVER-BOOST!! gbeaird's Avatar
    Join Date
    Apr 2002
    Location
    Pearland, Texas
    Posts
    1,849
    SVO's: '86 2R
    Quote Originally Posted by svono50 View Post
    I can say their 4-pt brace bolts in without any real issues, not sure about their sub-frames as I am running the Kenny Brown double-cross connectors, which are welded in. Only issue I had with the 4-pt brace was the curled edges of the K-member had to be flattened out a bit for clearance, nothing unique to the SVO.
    Not finding many pictures of that 4-point installed, but could one save money by using the factory Turbo Coupe rear k-member brace? It fits without any issues.

    But yeah, these things flex about as much as a 3rd Gen F-body, so SFCs will be very useful! And yes, as Mike said, there are several resto-mod cars here. Our 86 is one (although it's in perpetual 'project' mode). Welcome!
    Gene Beaird,
    86 2R SVO, G Stock,
    Pearland, Texas

  3. #18
    OVER-BOOST!! svono50's Avatar
    Join Date
    Apr 2002
    Location
    Streamwood, IL
    Posts
    3,573
    SVO's: 86 1C
    Quote Originally Posted by gbeaird View Post
    Not finding many pictures of that 4-point installed, but could one save money by using the factory Turbo Coupe rear k-member brace? It fits without any issues.
    <snip>
    Interesting Gene, here are a couple more for ya then! Any brace under there could help, you are trying to keep the rear a-arm suspension points from squeezing in when cornering, if there is a factory part that could be used for cheap, then why not. The MM piece was reasonable in price and was one of the easiest mods to install.

    Click image for larger version. 

Name:	K-member - Top_01.jpg 
Views:	6 
Size:	147.8 KB 
ID:	45869 Click image for larger version. 

Name:	K-member - Installed_01.jpg 
Views:	9 
Size:	119.3 KB 
ID:	45870
    Ted
    86 SVO Mustang
    17 Cooper S Clubman ALL4

  4. #19
    6 PSI Boost
    Join Date
    Oct 2017
    Location
    Las Vegas NV
    Posts
    18
    Interesting regarding the Turbo Coupe brace. I searched but could not find a picture. Does it fit the front K or rear K on the Fox platform. The MM brace went in without much issue. I had to elongate one of the rear holes to get the 5\8 bolt through. I also replaced the rag joint with the popular Dorman (aka Help!) piece. Next up is sub-frame connectors, sway bar bushes and end links. I am also ordering new Koni shocks. The others are not acceptable even on full firm. I can compress the front by hand without issue and it cycles, albeit it slightly, more than once. I like the progressive H&R springs from what I have read. Ugh. This hod rod virus is unrelenting!
    1985 SVO
    1986-045 Saleen Mustang Griggs GR40, 408W RDI aluminum block, AFR 205, T56
    1999 BMW M Coupe

  5. #20
    OVER-BOOST!! gbeaird's Avatar
    Join Date
    Apr 2002
    Location
    Pearland, Texas
    Posts
    1,849
    SVO's: '86 2R
    I guess I should get a picture so that can be recorded here. But yes, the TC brace keeps the back of the K-member from flexing inward under braking and cornering maneuvers. It's a direct bolt-on, and if you pull one off a TC in a junk yard, grabbing the bolt and j-nut make it a 5-minute install. No one would ever know it didn't come from the factory that way.
    Gene Beaird,
    86 2R SVO, G Stock,
    Pearland, Texas

  6. #21
    12 PSI Boost
    Join Date
    Aug 2017
    Location
    Caledon ON Canada
    Posts
    39
    The aftermarket 2-point crossmember braces, which would fit and function similarly to the factory TC brace, can usually be found pretty cheap too. I got an unused one from a local Mustang club member for $40 and put that on recently.


    cheers
    Ed
    84 SVO 1E, option delete 11/83 production
    95 Jaguar XJR -- also a boosted car!

  7. #22
    OVER-BOOST!! gbeaird's Avatar
    Join Date
    Apr 2002
    Location
    Pearland, Texas
    Posts
    1,849
    SVO's: '86 2R
    Quote Originally Posted by gbeaird View Post
    I guess I should get a picture so that can be recorded here. But yes, the TC brace keeps the back of the K-member from flexing inward under braking and cornering maneuvers. It's a direct bolt-on, and if you pull one off a TC in a junk yard, grabbing the bolt and j-nut make it a 5-minute install. No one would ever know it didn't come from the factory that way.
    Since I was spending a little quality time with the car this weekend, I got the front end up on ramps (to investigate some sort of oil leak), and got a picture of the TC K-member brace:

    Click image for larger version. 

Name:	TC K-member brace 1.jpg 
Views:	11 
Size:	209.8 KB 
ID:	45878

    Sorry for the crappy cell phone pic, and the really nasty underside of the car. One of the projects that didn't get done this last week was to get the car out, pull the radiator, and really start cleaning things up in the front of the engine bay and underside. That didn't happen........
    Gene Beaird,
    86 2R SVO, G Stock,
    Pearland, Texas

  8. #23
    6 PSI Boost
    Join Date
    Oct 2017
    Location
    Las Vegas NV
    Posts
    18
    Update:


    I got the new Konis and H&R springs into place and the car rides much better. Sub frame connectors, new Hawk HPS pads and steel braided hoses have given me the confidence to drive this vehicle around town at speeds above the posted limit if you will. I like unique drivers and this one fits the bill.


    The car does have a somewhat sluggish throttle response at low RPM. Boost doesn’t kick in until around 2,500 RPM or 2,800 RPM depending on gear and speed. Sometimes if I mat it at low RPM it falls on its face and bogs. Timing is at 10 degrees and TPS is set at .93. I have installed new Motorcraft plugs (AGSF32C) and pcv. It drives great when warm and I upshift it at 3,500 or so bringing it back to 2,500. Perhaps I am used to higher low end torque with my other vehicles. It does appear to have a larger 2.5 inch down pipe and a K&N cone filter. Will these mods cause the engine to lose some down low torque in favor of more HP?
    1985 SVO
    1986-045 Saleen Mustang Griggs GR40, 408W RDI aluminum block, AFR 205, T56
    1999 BMW M Coupe

  9. #24
    Administrator SVOeric's Avatar
    Join Date
    Mar 2002
    Location
    Richmond, KY
    Posts
    12,636
    SVO's: 86-1C & 86-1E
    The larger downpipe won't increase or decrease torque. The restriction is at the turbo.

    What you are describing is pretty normal. When I was running the ranger roller cam straight up, boost would start at about 1500, and reach full boost about 2000-2100, but falls flat on it's face at 5k.
    These engines aren't going to have a lot of torque below about 1600 rpm, it's not a 5 liter you can run around at 1200 rpm, it's just not made that way.
    Eric C
    SVOCA Webmaster

  10. #25
    OVER-BOOST!! svono50's Avatar
    Join Date
    Apr 2002
    Location
    Streamwood, IL
    Posts
    3,573
    SVO's: 86 1C
    Curt, it certainly sounds like your car is running pretty 'normal' for an SVO. Our little 2.3L's are not going to hold any kind of candle to your other Fox, just the truth of the matter, you just have to keep things above 3000rpm to get things boiling. I have only driven a couple of 85's, which are a little lower HP than my 86, but I remember all SVO's to be a bit 'soft' below 3000 rpm. Your boost curve sounds like what it should for an 85, where the power level really jumps and the turbo lag is very present. This issue was addressed with the 85.5/86 models with a different turbo, but not eliminated.

    The larger DP will not hurt your bottom end, it should help bring on the boost a bit sooner and stronger, which can only help. Adding a 3" DP on my stock at the time 86 knocked off a solid 1/2 second in the 1/4 mile, but my trap speed remained flat. This tells you that the HP level didn't change, only where the HP occurred, which helped the ET and the feel on the street.

    If you don't mind, report on which specific H&R springs and the ride height difference when you get a chance. Thanx and enjoy the ride!
    Ted
    86 SVO Mustang
    17 Cooper S Clubman ALL4

  11. #26
    6 PSI Boost
    Join Date
    Oct 2017
    Location
    Las Vegas NV
    Posts
    18
    Happy Holidays.


    I understand the need to drive at higher RPM’s. Just confirming. I do wish the throttle response was a little faster. I can quickly mat it in neutral and there is a hesitation. Makes heal toe driving a bit difficult. I heal toe in all my cars to stay in practice. Can one quicken that response easily? Aftermarket boost controller?


    The H&R springs are the Sport Spring. See link below. I did not measure the drop but I estimate and inch or so. The stance looks good. http://www.hrsprings.com/application...s/11/263/1986/
    Attached Thumbnails Attached Thumbnails IMG_2731.JPG  
    1985 SVO
    1986-045 Saleen Mustang Griggs GR40, 408W RDI aluminum block, AFR 205, T56
    1999 BMW M Coupe

  12. #27
    Administrator SVOeric's Avatar
    Join Date
    Mar 2002
    Location
    Richmond, KY
    Posts
    12,636
    SVO's: 86-1C & 86-1E
    Far as the hesitation, would have to hear it to tell for sure. it's hard to explain what 'timing lag' sounds like, but it's like art, I know it when I see (hear) it.
    What does happen some-time, head / block gets milled--- this reduces the distance between the crank and cam, which means the cam is running slower in time than it should. There are ways to zero the cam, and use an adjustable cam gear to compensate, IF that is the issue. -- big IF, cause this is a very wild guess.

    aftermarket boost controller will make no difference (assuming waste-gate actuator, and flapper valve are all in working order)
    it will allow you to adjust max boost, might help with boost spikes, but as far as making boost come on sooner, it's not going to help.
    Eric C
    SVOCA Webmaster

  13. #28
    Administrator SVOeric's Avatar
    Join Date
    Mar 2002
    Location
    Richmond, KY
    Posts
    12,636
    SVO's: 86-1C & 86-1E
    feeling like a bit more boost explanation is in order..

    so the waste-gate looks like this.
    Click image for larger version. 

Name:	wastegate.jpg 
Views:	6 
Size:	98.1 KB 
ID:	45894

    the flapper valve you see on the right side stays closed, until enough boost is reached that the waste gate actuator, (that attaches to the round arm you see at the top of that image) pushes the flapper valve open, and allows boost to bleed off.

    Boost controllers simply control when the waste-gate actuator opens this flapper valve. It stays closed until boost is built, so there is no way a boost controller can bring boost on faster.
    Eric C
    SVOCA Webmaster

  14. #29
    OVER-BOOST!! GAboySVO's Avatar
    Join Date
    Dec 2002
    Location
    Acworth, GA
    Posts
    3,170
    SVO's: 2 - 9Ls
    Quote Originally Posted by Curt C View Post
    Happy Holidays.
    I understand the need to drive at higher RPM’s. Just confirming. I do wish the throttle response was a little faster. I can quickly mat it in neutral and there is a hesitation. Makes heal toe driving a bit difficult. I heal toe in all my cars to stay in practice. Can one quicken that response easily? Aftermarket boost controller?
    The best way to improve rev response is to reduce the rotational mass. An aluminum flywheel and driveshaft are available on the aftermarket.
    Last edited by GAboySVO; 12-26-2017 at 07:37 PM.
    Mike S

    '86 SVO 9L Leather
    '86 SVO 9L Road Warrior
    '96 300ZXTT

  15. #30
    OVER-BOOST!! GAboySVO's Avatar
    Join Date
    Dec 2002
    Location
    Acworth, GA
    Posts
    3,170
    SVO's: 2 - 9Ls
    Another thing you can do to reduce the bog is to only press the loud peddle to 3/4. At full throttle, the ECU dumps a lot of fuel and your a/f ratio drops to 10 causing loss of power.
    Mike S

    '86 SVO 9L Leather
    '86 SVO 9L Road Warrior
    '96 300ZXTT

Posting Permissions

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