Registered
Join Date: Jul 2001
Location: Suntree, Florida, USA
Posts: 2,261
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991 Turbo Killer Help Please
So I am sure everyone has heard of bench racing... let's make it real.
I am currently in a friendly dispute over the ability of an air-cooled 911 having the ability to win a 0-60 and 0-100 race with a 991 Turbo S.
What I want to do is build a motor, mated to a stock 930, 4 speed gearbox, that can win this race.
What I have so far is: 930 based engine (not convinced yet that this is the way to go). So, 3.3 crank, and stock rods (ARP hardware). Thinking 9.0:1 JE or something similar for turbo application.
I have a set of 3.2L big port heads twin plugged and chamfered for a 3.4/3.5L application ready to go. But... if I don't want to shift, I might change the retainers and springs so I can get the RPM to do 60mph in 1st gear.
Other than this, I am wide open. Thinking EFI with a Carrera manifold to match the heads.
Major questions... cam grind? single or dual turbo, super charger, or just build a wicked NA motor.
The gearbox is a major limiting factor but I want to work around that.
This is a guts and glory deal but if I win, it's a HUGE deal. 2.65 seconds seems to be the 991 TS 0-60. So that means, based strictly on weight calculations, 700+hp.
Base chassis is a 1986 narrow body 911 with enough torsion bar to choke a horse.
What say ye, Pelican brain trust?
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JB - BreitWerks
www.breitwerks.com
321-806-8664
Engine Rebuild & Restorations
Last edited by DSPTurtle; 06-18-2017 at 04:03 PM..
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