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| Suspensions, Street and Strip This is where we talk about new and different suspension packages and what works best for your type of driving |
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#1
03-30-2008, 01:37 PM
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not sub 1.4 but 1.41's
t-brake launches at 10psi (electronic boost controller) stock springs stock uppers stock lower (bottoms boxed) stock bushings MT drag radials (#23psi) and HR parts sway bar the trans, driveshaft and rear are built for low 60s 2004r , 9"art carr 14930, chromoly shaft , spicer yokes and ujoints moser 33 spline , moser spool , c-clip elems i probably could cut 1.3xs by dialing boost up a little and toss on some slicks , but with just a stock bottom end i cant be too hard on it. i run a stageright t-brake which engages by placing trans in 1st gear and releases by bumping out of 1st , because of this the shifter is in 2nd when you leave the line and 1-2 shift is auto trans controlled occurring early (5150) and within the first 60' (actually 42') , if i could carry 1st gear to 5850 the 60 should drop ...working on that as we speak 
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Paul... NJ rep MAGNABUICK.com the 86 3450lbs ...1.44 6.19@112 9.72@138 , 109 234cu stock mains and bolts , irons, the 87 ttop ,1.37 6.0@ 114 9.45 @ 141.9 25 psi !! 109 235cu .gn1 alum, certified roll cage . the 87gnx'd FAST B2B TA49 ..back to all stock original #s 109 and trans hipro w stagerite the 87 GN ttop ..all stock with vac brakes 86 WH1 mini tubbed roll caged 109, extreme 2004r all on pump 93 and alkycontrol Last edited by PaceCarTA; 03-30-2008 at 02:03 PM. 
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#2
03-30-2008, 08:37 PM
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The HR bar for me was one of the best suspension components that I purchased. I am running 400 with a brake but I was having a hard time controlling the boost with the manual boost controller that I had. It was near impossible to leave consitently with my old set up. My car is getting the electronic boost controller installed (amongst other things  )and Jack and Brian are going to check out my rear end set up once they get it on the lift.Nice times BTW!
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87 GN, RPE built 109 stroked, RJC girdle, billet main caps, custom comp roller cam, Champion ported aluminum heads, Champion aluminum intake, T&D 1.65 rockers, 96 lb injectors, Accufab 70mm throttle body RJC pullies, RJC A/C bracket,GTK-850, ATR headers,Deeds electronic boost controller, Cotton’s 4 inch down pipe w/ Turbonetics RG 45 gate, XFI, Cotton’s front mount, Level 10 built 400 trans w/brake, Converter? ,33 spline Moser axles, Spool, HR bar. New best 9.44 @ 143!
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#3
03-30-2008, 09:40 PM
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It's scarry how simular our cars are Mike. Gotta stop hanging around Jack!
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'86 Gn with an RPE bullet. Almost everything else is from Cottons. 100% street car!
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#4
03-30-2008, 11:31 PM
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Quote:
 LOL!
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87 GN, RPE built 109 stroked, RJC girdle, billet main caps, custom comp roller cam, Champion ported aluminum heads, Champion aluminum intake, T&D 1.65 rockers, 96 lb injectors, Accufab 70mm throttle body RJC pullies, RJC A/C bracket,GTK-850, ATR headers,Deeds electronic boost controller, Cotton’s 4 inch down pipe w/ Turbonetics RG 45 gate, XFI, Cotton’s front mount, Level 10 built 400 trans w/brake, Converter? ,33 spline Moser axles, Spool, HR bar. New best 9.44 @ 143!
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#5
08-25-2008, 07:17 PM
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Quote:
__________________
'86 Gn with an RPE bullet. Almost everything else is from Cottons. 100% street car!
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#6
09-09-2008, 07:55 PM
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OK, since the last time at E-town we discovered a problem with the left rear tire on my car. Seems like @ 139.5 mph the tire starts to rub the front of the d/s wheel opening causing the tire to make smoke and a groove in the tire!
 Here's is an older pic that I found(I don't have a fuel system like that anymore) but the suspension is the same. I think I have to move the bolt that is behind the orignal mounting bolt for the lower control arm. I just hope there is enough area to re-drill. I think I have to move the wheel back a 1/2 inch. I will get it down to my shop and put it on the lift hopefully this week. 
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87 GN, RPE built 109 stroked, RJC girdle, billet main caps, custom comp roller cam, Champion ported aluminum heads, Champion aluminum intake, T&D 1.65 rockers, 96 lb injectors, Accufab 70mm throttle body RJC pullies, RJC A/C bracket,GTK-850, ATR headers,Deeds electronic boost controller, Cotton’s 4 inch down pipe w/ Turbonetics RG 45 gate, XFI, Cotton’s front mount, Level 10 built 400 trans w/brake, Converter? ,33 spline Moser axles, Spool, HR bar. New best 9.44 @ 143!
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#7
09-10-2008, 02:42 AM
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Michael, a few years back I had the same problem (but not as severe to cut a groove in the tire though...). The tires had a tendency to rub slightly on the front of the wheel openings even after Eric at Dynotech (R.I.P.) replaced the lower control arms with H&R's. There was a hole that had been drilled (like on your car) to install some "relocation brackets" which changed the pinion angle, but after Eric installed adjustable uppers, they weren't needed anymore and he removed them.
But even after doing this, the rubbing problem was still there, so Eric spoke with Paul at H&R about the problem and eventually was able to get some lower bars that were almost 1/2" longer than the stock length (I think from H&R also, but not 100% sure...) which bolt in the original hole and did solve the tire rubbing problem... Maybe you should give Paul @ H&R a call to ask about this...  Hope this helps! Claude P.S: The bolt which the arrow is pointing at in your picture is there to lock the plates in place preventing them to rotate under acceleration...DO NOT remove it!...but if you plan to keep these lower bars, then have the plates welded to the factory brackets for more safety...
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1987 Buick Grand National 9.70 e.t. @ 139.35 mph 1971 Chevelle SS 2008 Ford F-350 Crew Cab Dually 2012 Lincoln MKX Last edited by toofastforyou; 09-10-2008 at 02:52 AM.
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#8
09-10-2008, 10:07 AM
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Good idea Claude, but we have been using the double adjustable Wolfe Racecraft lower bars, that way we have the flexibilty to make minor adjustments either way on both sides without removing the control arms..
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Jack Cotton Cottons Performance 413-789-0531
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#9
09-10-2008, 01:04 PM
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Claude P.S: Jack, you're SURE I should keep that H&R sway bar on my car?...Maybe it's me who has not adjusted it right?... ..I realize that everyone says nothing but good things about it and I seem to be the only one who's complaining... Anyways, here's a reply I wrote on Turbobuick.com about the sway bar: "I currently have a similar setup on my GN (H&R sway bar + upper adjustable control arms + fixed lenght lower ca's...). H&R's parts fit and finish is excellent...BUT...since I've installed the sway bay, my car NEVER was able to launch as hard as it did before... My car used to leave the line with both wheels off the ground but now, it does but only an inch or so. I'm dissappointed of the end result. YES, it did leave the line crooked with one side of the car higher than the other, but it was FUN and gave a good show to friends and spectators ...but not anymore."  Claude. ---but don't worry Jack...I'm still going to follow your recommandations 'cause you're "THE" man!... ____________
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1987 Buick Grand National 9.70 e.t. @ 139.35 mph 1971 Chevelle SS 2008 Ford F-350 Crew Cab Dually 2012 Lincoln MKX
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#10
09-10-2008, 02:59 PM
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Claude, thanks for the input! I was off when I drilled the bracket for the d/s. Now I don't think I have enough room to re-drill to make the bracket correct. The p/s side is good, d/s is not. The only way I could make it work with the HR bars is if I bought 1 1/2" longer one for the d/s. And is it a 1/2 longer than stock? Because the South Sides are longer than stock to begin with! AGHHHH!
Jack, can I bolt up those wolfe bars directly into my existing South Side brackets? That way I can measure the right side and make it identical to what it is now and adjust the d/s to where it is supposed to be, I think a 1/2 inch back.
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87 GN, RPE built 109 stroked, RJC girdle, billet main caps, custom comp roller cam, Champion ported aluminum heads, Champion aluminum intake, T&D 1.65 rockers, 96 lb injectors, Accufab 70mm throttle body RJC pullies, RJC A/C bracket,GTK-850, ATR headers,Deeds electronic boost controller, Cotton’s 4 inch down pipe w/ Turbonetics RG 45 gate, XFI, Cotton’s front mount, Level 10 built 400 trans w/brake, Converter? ,33 spline Moser axles, Spool, HR bar. New best 9.44 @ 143!
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