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Originally Posted by mark_123456
Anyway I ran a 7.9 at 90 mph with a 1.95 60'. Pump gas and alky.
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Probably would be a low 12, assuming the top end picked up 20mph or more.
I plan on running my GT6152 on a stock engine combo except for the injectors and dutt neck. Just put it in last week. I'll run about 25lbs boost on alky with 26/21 timing on a Turbotweak chip with alky. With a 1.6 60ft or better I'm hoping to start out in the high 11's and bring it to mid or lower 11's with a good tune. We'll see how much the stock IC and heads limit me. I want to try for 11's on the stock turbo (a good one this time, not the POS I just took out) before I upgrade everything.
I'm interested to see how much boost this turbo can take before it starts to drop off. The 26/21 timing is what I read alot of people are using on alky. Would like to hear if anyone has tried higher timing.
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'86 White T Type : Minor upgrades: 109 block with billet mains, Wiseco pistons, K-1 rods, T&D shaft system, Weber 224/224 roller cam, GN1 heads, Eagle crank, CPT70BB, now with a PTC 9.5" nonlock race converter. 10.9@100mph  .
'87 Regal Sleeper with LC2 : 12.7@106.4mph on stock setup. Now with a TE44 and 50# injectors.
'87 GN : ATR SS dual 3", THDP, the rest pretty much stock except for some chrome.
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