Is there any benefit to having more than two turbos? If you ran 3 or 4 wouldn't you get to full boost quicker? I'm kind of curious how a car would run with a really custom header/exhaust set-up and three turbos.

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1984 WS6 Trans Am Hartop
Former L69 Car under restoration
1984 WS6 Trans Am T-tops
4-bolt main 350, headers, Holley 650, T-5, dual elec. fans and 3.23's.
Daily driver and restoration
13.98 @ 101

 

This has been done before. Best way is to use 2 small units to spool the next 2 larger units. Main problem is routing twice as many support items: coolant lines, oil lines, return lines, air intakes, intercooler pipes, exhausts, etc. I believe the Bugatti supercar has a quad-turboed engine...

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Old: 1989 Formula, 383", DFI, built 700R4, TFS heads, Mini-Ram, Vortech S-trim 15 psi, 3.70 gears
Best ET: 10.796 @ 125.8 mph

New: 1989 T/A, 406", Accel Pro-Ram, DFI, AFR heads, HRC Turbosystem, NOS 150-hp dry kit, TH400 w/GV overdrive, 9" w/3.70 gears, 8-pt. S&W rollbar, 18" wheels
Best ET: Spring 2001

Employed at:
Hahn Racecraft
Accel EMIC/DFI Tuning
Turbosystems & Custom EFI

Member of Midwest F-Body Association www.mfba.org

 

The setup of running small turbos with large turbos is a sequntial turbo setup. The small turbos spool fast and get you moving off the line and the larger turbos take over in the top end. Does it work? Look at a Porsche 911 turbo. 0-60 in 3.7 seconds with an air cooled flat six.

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