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Even with those tires? And how do u go about locking the converter? And when do u do it? Half way threw 3rd I'm guessing.
FYI I plan on leaving on 7-9# on the trans brake Maybe 10# bc at 10 my vig stalls at 3000rpms exactly
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'87 GN t-top - accufab 70 mm TB, precision upper, power plate, 60's , adj reg, SMC progressive alky kit , TT chip, 6776 DBB turbo (rh), 4 inch maf pipe, zo6 MAF with translator, Cottons HUGE Bar and plate front mount with 3 inch polished pipes, vig 3200 5 disc stall, extreme automatics (Lonnie) Trans with stage right brake, 3in atr DP with electric cutout, scanmaster, walbro 255lph, hotwire kit, boxed control arms, air bag rr, Bilstein's rear seat brace, Bilstein shocks, front lower braces and core to fender braces, 4 core alloy radiator with coolers built in, comp cam 980s, rollmaster timing chain |
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Anyone?
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'87 GN t-top - accufab 70 mm TB, precision upper, power plate, 60's , adj reg, SMC progressive alky kit , TT chip, 6776 DBB turbo (rh), 4 inch maf pipe, zo6 MAF with translator, Cottons HUGE Bar and plate front mount with 3 inch polished pipes, vig 3200 5 disc stall, extreme automatics (Lonnie) Trans with stage right brake, 3in atr DP with electric cutout, scanmaster, walbro 255lph, hotwire kit, boxed control arms, air bag rr, Bilstein's rear seat brace, Bilstein shocks, front lower braces and core to fender braces, 4 core alloy radiator with coolers built in, comp cam 980s, rollmaster timing chain |
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If Bison said you'll trap 117................you'll trap 117
. Gnttype.org has directions for locking the converter.
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Dave Racecar #1 87 T-Type (Just make an offer) No new combo to come, and a bunch of parts to sell. Racecar #2 93 Nissan 240sx cp (at least its a rwd import) 16.3@83mph
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i went 128 on my 255/50-16s and they are even shorter than those 275/50-15s, used OD with a AC 9" non lock converter, and 60s were 1.50s
on my 87 with a ta 49 went 116.99 with the same little tire not using OD , motor was stock unopened at the time , locked 10.5" converter
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paul -NJ rep MAGNAbuick.com NJ,PA,MD DE -GN/TTA club 86 & 87 GN's A little fun with the GNs at Atco video my 86 10.4 on 93 with a 2004r on radials through the mufflers |
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I can't find it on gnttype. Can someone post a link. Bc there's no button or anything for it as far as I no.
Bison, do u think with a 10# launch on the trans brake and lockin the converter on third 11.2@118-119 is out of the question? Or cud it happen
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'87 GN t-top - accufab 70 mm TB, precision upper, power plate, 60's , adj reg, SMC progressive alky kit , TT chip, 6776 DBB turbo (rh), 4 inch maf pipe, zo6 MAF with translator, Cottons HUGE Bar and plate front mount with 3 inch polished pipes, vig 3200 5 disc stall, extreme automatics (Lonnie) Trans with stage right brake, 3in atr DP with electric cutout, scanmaster, walbro 255lph, hotwire kit, boxed control arms, air bag rr, Bilstein's rear seat brace, Bilstein shocks, front lower braces and core to fender braces, 4 core alloy radiator with coolers built in, comp cam 980s, rollmaster timing chain |
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Switches
basically connect a switch to the F(top left) and A (top right) terminals of the ALDL connector under the radio pod
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paul -NJ rep MAGNAbuick.com NJ,PA,MD DE -GN/TTA club 86 & 87 GN's A little fun with the GNs at Atco video my 86 10.4 on 93 with a 2004r on radials through the mufflers |
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Thank u very much
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'87 GN t-top - accufab 70 mm TB, precision upper, power plate, 60's , adj reg, SMC progressive alky kit , TT chip, 6776 DBB turbo (rh), 4 inch maf pipe, zo6 MAF with translator, Cottons HUGE Bar and plate front mount with 3 inch polished pipes, vig 3200 5 disc stall, extreme automatics (Lonnie) Trans with stage right brake, 3in atr DP with electric cutout, scanmaster, walbro 255lph, hotwire kit, boxed control arms, air bag rr, Bilstein's rear seat brace, Bilstein shocks, front lower braces and core to fender braces, 4 core alloy radiator with coolers built in, comp cam 980s, rollmaster timing chain |
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I just spent 10 minutes looking for the damn link Switches. I got treed bad.
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Dave Racecar #1 87 T-Type (Just make an offer) No new combo to come, and a bunch of parts to sell. Racecar #2 93 Nissan 240sx cp (at least its a rwd import) 16.3@83mph
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If you are running 114 with 26" tall tires, you will go faster with 28" tires.
I went 118.3 in D with a stock, unopened long block, a TA49 and 275/60's and I'm not that good. Oh it was also done at a 1000 ft altitude, slippery track not one below sea level or prepped so good high 12 second cars pull the front wheels.
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UNGN My OOOOOLD Timeslips Page My OOOOOLD G-body Homepage 1986-87 Illustrated Parts Book Wil's Power Wheel Page Last edited by UNGN; November 16th, 2009 at 09:50 PM. |
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Yep, back in the day when I was trapping 115mph, I switched to 275/60's and it went 118mph.
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86 TR WH1 Leather,column,astroroof Hartline XFI w/6 bank egt, ITS billet 71 DBB BWR 3.5 dp w/Trbosmrt gate,ISAC controller Champ Intake,GN1's,T&D's,83's,distributor,AL2 Razor alky, P-stroke IC, 210/215 roller, Forged stroker, TA headers, HR Bar Lonnie D Stage 2, PTC 9.5 N/L, 325/50's My balls write cheques that my luck can't cash.......
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But did your et drop also? Bc if the car will b faster I'll get 60s sense they will be on different wheels and only be on at the track
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'87 GN t-top - accufab 70 mm TB, precision upper, power plate, 60's , adj reg, SMC progressive alky kit , TT chip, 6776 DBB turbo (rh), 4 inch maf pipe, zo6 MAF with translator, Cottons HUGE Bar and plate front mount with 3 inch polished pipes, vig 3200 5 disc stall, extreme automatics (Lonnie) Trans with stage right brake, 3in atr DP with electric cutout, scanmaster, walbro 255lph, hotwire kit, boxed control arms, air bag rr, Bilstein's rear seat brace, Bilstein shocks, front lower braces and core to fender braces, 4 core alloy radiator with coolers built in, comp cam 980s, rollmaster timing chain |
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My Et Dropped because I could leave with more boost than the 50's so my 60 fts were quicker, too.
On a perfectly prepped track, a 50 series tires should 60 ft quicker than a 60 series tire... but in the real world of the typical track prep on a street tire night, the 60's were much more resistant to blowing off than the 50's. My best ET of running 50's for years was 11.92 @ 114. I switched to 60's and went 11.66@116 with really no other changes, eventually running 11.53@118.3 by swapping on skinny front tires.
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UNGN My OOOOOLD Timeslips Page My OOOOOLD G-body Homepage 1986-87 Illustrated Parts Book Wil's Power Wheel Page |
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Best MPH with 275.50.15 was 119.96 with trap RPM ~5700. See sig below.
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Walter Boss My 1987 Turbo T - 11.358 @ 120.62 22# of boost & 24°/22° on 93 and alky (Stock MAF and 2800 12" NC LU) Turbo Tweak, Alky Control , Cotton's Performance, Highway Stars Buick Regal Grand National Parts |
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So you guys definatly think that an 11.2 at 118 is possible for my setup?
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'87 GN t-top - accufab 70 mm TB, precision upper, power plate, 60's , adj reg, SMC progressive alky kit , TT chip, 6776 DBB turbo (rh), 4 inch maf pipe, zo6 MAF with translator, Cottons HUGE Bar and plate front mount with 3 inch polished pipes, vig 3200 5 disc stall, extreme automatics (Lonnie) Trans with stage right brake, 3in atr DP with electric cutout, scanmaster, walbro 255lph, hotwire kit, boxed control arms, air bag rr, Bilstein's rear seat brace, Bilstein shocks, front lower braces and core to fender braces, 4 core alloy radiator with coolers built in, comp cam 980s, rollmaster timing chain |
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Quote:
With 28" DR's, your set up should run over 120 mph.
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UNGN My OOOOOLD Timeslips Page My OOOOOLD G-body Homepage 1986-87 Illustrated Parts Book Wil's Power Wheel Page |
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see sig
best mph with 275 50 15 was 106 now i run 275 60 15 seem to hook better too...8lb trans brake launch non lockjing converter(i think the extra sidewall height helps with the wrinkle action) ill see if i can find the pic i took side by side the 275 60 is quite a bit taller 2 inches is huge check back later ill see if i can find the pic -dan
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Dan W 87 GN, te45a, xfi, e85, siemens 83's, fresh motor---cat crank,scat rods,je pistons cuton comp cams roller,champ heads and intake,chev style scorpion rockers...scary fast and its only at 12psi...for now... http://www.mgnta.com |
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Thanx for all the info guys!!! And ya if u do find them pictures post them. I'd really like to see them
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'87 GN t-top - accufab 70 mm TB, precision upper, power plate, 60's , adj reg, SMC progressive alky kit , TT chip, 6776 DBB turbo (rh), 4 inch maf pipe, zo6 MAF with translator, Cottons HUGE Bar and plate front mount with 3 inch polished pipes, vig 3200 5 disc stall, extreme automatics (Lonnie) Trans with stage right brake, 3in atr DP with electric cutout, scanmaster, walbro 255lph, hotwire kit, boxed control arms, air bag rr, Bilstein's rear seat brace, Bilstein shocks, front lower braces and core to fender braces, 4 core alloy radiator with coolers built in, comp cam 980s, rollmaster timing chain |
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16 to 18 psi works fine at the track.
24 on the street.
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UNGN My OOOOOLD Timeslips Page My OOOOOLD G-body Homepage 1986-87 Illustrated Parts Book Wil's Power Wheel Page |
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I have been deciding between the two sizes also....I just went to the track a few weeks ago for the time trying to work on my tune. I am running a 275/50/15 BFG DR and I was trapping 115 @18 psi I want to start going more boost but at the top of third I was hitting my rev limiter right at 5600rpm.
I think from what everyone is saying I need to go to the 275/60/15 and gain 2" taller to get the revs down.
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'87 GN stock 109, forged pistons, stock rods with ARP rob bolts and RJC girdle. Stock heads with Champion port and polish, stock intake Champion port and polish. 63mm TB, 210/215 roller, 55# injectors TT chip, TE 66, Dual walbro 340 with hotwire kit, ATR headers, 3" TH down pipe, 1 1/2 with large neck stock location I/C, Dual 2 3/4" exhaust with dynomax race bullets. 3.5" LS1 MAF with translator, Big mouth CAI, Art carr 9" 3000 stall converter, 200R4 with all heavy duty parts, stock rear, upper and lower southside rear control arms, Eibach springs, comp shocks 90/10 in front 50/50 in rear. Airbags & drag radials. NEW BEST 1.72 60' 11.54 @ 116.36 20PSI
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11.50@118 with 275/50 Mickeys, 1.65 short time. All I have is the OEM tach with a few missing lights, so I have no idea what she was revving. TC was locked, though.
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86 White HT, TE61, FMIC, fancy converter; runs 11's unless it spins, lags, or knocks 04 Suburban 05 Trailblazer 100hp Chevy Work Truck 3.5hp Craftsman lawnmower |
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Id try to keep the engine rpm between 4500 and 5100. Use the online calculators to calculate your zero slip rpm in 3rd and just try to get it to drop to 4500 when its locked. You will probably be best locking at 103-105mph with those tires. Trapping higher than 117mph will be easy if the tune is good and the boost is up. Plan on high 20's for 119-120mph. Cam and heads would net a lot at this point. Your vig seems tight down low if its only 3000 at 10psi. Not the usual from what ive seen.
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Not if the car has the power to pull through the taller tire. Its a hell of a lot harder to get a better and consistent 60' on a 26" vs a 28". When building a car that has any appreciable power you would pick the tallest widest tire you can ge tin there and then gear the car for the quarter mile.
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Well that is somewhat of an issue for me because I do not have a lock up converter. I was not able to watch the tach (on scan master) to well going down the track but every formula I plug gives me 5600rpm @115mph with a 26" tall tire. The only thing that makes sense to me is go to a 28" tire basicall the 275/60/15
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'87 GN stock 109, forged pistons, stock rods with ARP rob bolts and RJC girdle. Stock heads with Champion port and polish, stock intake Champion port and polish. 63mm TB, 210/215 roller, 55# injectors TT chip, TE 66, Dual walbro 340 with hotwire kit, ATR headers, 3" TH down pipe, 1 1/2 with large neck stock location I/C, Dual 2 3/4" exhaust with dynomax race bullets. 3.5" LS1 MAF with translator, Big mouth CAI, Art carr 9" 3000 stall converter, 200R4 with all heavy duty parts, stock rear, upper and lower southside rear control arms, Eibach springs, comp shocks 90/10 in front 50/50 in rear. Airbags & drag radials. NEW BEST 1.72 60' 11.54 @ 116.36 20PSI
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i ran 18psi at the track
30 on the street -dan
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Dan W 87 GN, te45a, xfi, e85, siemens 83's, fresh motor---cat crank,scat rods,je pistons cuton comp cams roller,champ heads and intake,chev style scorpion rockers...scary fast and its only at 12psi...for now... http://www.mgnta.com |
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Quote:
Is that a bad thing bison? I was told it's a 3200 stall
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'87 GN t-top - accufab 70 mm TB, precision upper, power plate, 60's , adj reg, SMC progressive alky kit , TT chip, 6776 DBB turbo (rh), 4 inch maf pipe, zo6 MAF with translator, Cottons HUGE Bar and plate front mount with 3 inch polished pipes, vig 3200 5 disc stall, extreme automatics (Lonnie) Trans with stage right brake, 3in atr DP with electric cutout, scanmaster, walbro 255lph, hotwire kit, boxed control arms, air bag rr, Bilstein's rear seat brace, Bilstein shocks, front lower braces and core to fender braces, 4 core alloy radiator with coolers built in, comp cam 980s, rollmaster timing chain |
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Its not a typical stator/ pump configuration found on TR's. A vig at 10 psi is usually over 4000. The converter isnt very efficient anyway so you will need to lock it to get any good mph.
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So should I change it? Or run it a few times the way it is first? Also, what could be the negitives about that happening
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'87 GN t-top - accufab 70 mm TB, precision upper, power plate, 60's , adj reg, SMC progressive alky kit , TT chip, 6776 DBB turbo (rh), 4 inch maf pipe, zo6 MAF with translator, Cottons HUGE Bar and plate front mount with 3 inch polished pipes, vig 3200 5 disc stall, extreme automatics (Lonnie) Trans with stage right brake, 3in atr DP with electric cutout, scanmaster, walbro 255lph, hotwire kit, boxed control arms, air bag rr, Bilstein's rear seat brace, Bilstein shocks, front lower braces and core to fender braces, 4 core alloy radiator with coolers built in, comp cam 980s, rollmaster timing chain |
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