How much boost can these engines handle?
Thread Starter
Hamado things my way!
Joined: Oct 2001
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From: Pensacola, Florida
Cool, good answers, but I really want to know what a "built" engine can do. Let's say an engine totally built up and ported, using 3mm Ianetti ceramic seals on race gas or even alcohol(if possible).
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I am not a fan of 3mm apex seals! it takes a little longer to build boost and torque is lower! dont get me wrong upgraded seals are better i went with the upgrade hd seals and sprigs but apex seals will break no matter what they are made out of and how big. IMO
Senior Member
Joined: Mar 2001
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From: Massachusetts
Originally posted by Swamp RX-7
I think the real question is how much boost can the stock 2mm apex seals handle? If you take a stock 13B-REW but use aftermarket turbos, intercooler, and fuel system, how much boost is too much for the stock 13B-REW?
I think the real question is how much boost can the stock 2mm apex seals handle? If you take a stock 13B-REW but use aftermarket turbos, intercooler, and fuel system, how much boost is too much for the stock 13B-REW?
Banned. I got OWNED!!!
Joined: Feb 2001
Posts: 2,158
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From: Bay Area, CA
the apex seals have nothing to do with the amount of boost you can run. you could run 25 psi on stock seals with no problem, and you can run 10 psi on 3.5 mm seals and still blow it. HOW?? its all about tuning. ****, if the car is tuned properly and fed the proper fuel, you could run 30 pounds on 0.5 mm seals (do they make any?). larger apex seals just cover up for bad tuning, and can take a little more detonation than 2 mm units. but you can have 10 mm seals if you want, if the car is tuned by a moron, you will still blow it.
Rotary Freak
Joined: Oct 2001
Posts: 1,568
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From: N.J. USA
33lbs of boost 175 nitrous oxide shot, 685rwhp on mazda stock 2mm apex seals, and drag raced a whole season and won the NIRA points series.. in the dyno I have seen 44lbs of boost on 2mm stock seals...
Rotary Enthusiast
Joined: Feb 2001
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From: Nor-Cal U.S.A.
The Man, could not have said it better.
Originally posted by JoeD
the apex seals have nothing to do with the amount of boost you can run. you could run 25 psi on stock seals with no problem, and you can run 10 psi on 3.5 mm seals and still blow it. HOW?? its all about tuning. ****, if the car is tuned properly and fed the proper fuel, you could run 30 pounds on 0.5 mm seals (do they make any?). larger apex seals just cover up for bad tuning, and can take a little more detonation than 2 mm units. but you can have 10 mm seals if you want, if the car is tuned by a moron, you will still blow it.
the apex seals have nothing to do with the amount of boost you can run. you could run 25 psi on stock seals with no problem, and you can run 10 psi on 3.5 mm seals and still blow it. HOW?? its all about tuning. ****, if the car is tuned properly and fed the proper fuel, you could run 30 pounds on 0.5 mm seals (do they make any?). larger apex seals just cover up for bad tuning, and can take a little more detonation than 2 mm units. but you can have 10 mm seals if you want, if the car is tuned by a moron, you will still blow it.
