93 Mazda Rx-7 vs 2002 Subaru Impreza wrx
09-15-2005, 01:36 PM
#31
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Originally Posted by case1
93-95 usdm rx7's are both the best and worst cars ever built imo. One of the lightest, fastest and well balanced cars around, not to mention god damn sexy looking, but mazda went and f***ed it all up by putting in a rotary motor. Why would they take possibly THE best engineered sports car of the 90's and stuff some crappy little 1.3 liter time bomb in the engine bay. IMO they would have been better off with str8 4 or 6. I know they were trying to save weight and weight displacement, but come on, imo those motors suck!
The engine is the reason...it's small and can be stuffed low and to the back thus giving yo the balance that you talk about.
If anything...they should've worked on the reliability before they sent it out to the world. I hear the Renesis rotary motor is a lot more reliable than the old rotary.
09-15-2005, 10:33 PM
#32
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Originally Posted by bpang1
Er....how do you think it became one of the lightest and most well balanced cars around?
The engine is the reason...it's small and can be stuffed low and to the back thus giving yo the balance that you talk about.
If anything...they should've worked on the reliability before they sent it out to the world. I hear the Renesis rotary motor is a lot more reliable than the old rotary.
The engine is the reason...it's small and can be stuffed low and to the back thus giving yo the balance that you talk about.
If anything...they should've worked on the reliability before they sent it out to the world. I hear the Renesis rotary motor is a lot more reliable than the old rotary.
Well the renesis rotary engine is the one the rx8 are coming out with...but keep in mind... 12a and 13b (old shool) are well known all over the world... for its 6-7 second passes on 1/4 mile and over 1100 hp on an engine that hardly weighs 130lbs...i have much proof...jajja...family owns a 7 sec..mazda glc 79-81 hatchback...thats why...my next project in hawaii...bring over a rotary from puerto Rico...lol
09-16-2005, 09:37 AM
#33
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Originally Posted by bpang1
Er....how do you think it became one of the lightest and most well balanced cars around?
The engine is the reason...it's small and can be stuffed low and to the back thus giving yo the balance that you talk about.
If anything...they should've worked on the reliability before they sent it out to the world. I hear the Renesis rotary motor is a lot more reliable than the old rotary.
The engine is the reason...it's small and can be stuffed low and to the back thus giving yo the balance that you talk about.
If anything...they should've worked on the reliability before they sent it out to the world. I hear the Renesis rotary motor is a lot more reliable than the old rotary.
09-16-2005, 10:32 AM
#34
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Originally Posted by case1
yes the motor is light weight, but so is a i4, my complaint is that you can't do anything to the internals in order to beef them up for more boost, one of my friends had a 94 rx7 and he blew the motor 3 times before moving on to an s4.
Its funny to me when people say the rotary is unreliable when typically they are running a catless exhaust, single turbo, extra injectors...etc. Once you have doubled the whp in any car it becomes unreliable.
09-16-2005, 12:52 PM
#35
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Originally Posted by mbquarts
you can cryo treat the internals and choose betweeen several types of apex seals depending on your application. Rotary engines run hot, so the cooling system needs upgrading or else the motor will burn up pretty quick.
Its funny to me when people say the rotary is unreliable when typically they are running a catless exhaust, single turbo, extra injectors...etc. Once you have doubled the whp in any car it becomes unreliable.
Its funny to me when people say the rotary is unreliable when typically they are running a catless exhaust, single turbo, extra injectors...etc. Once you have doubled the whp in any car it becomes unreliable.
As far as doubling whp, of course any motor becomes questionable, but motors like sr20det's, 4g63's have parts available to handle increased hp #'s.
No motor out there self destructs as often as the 13b period.
Of course it is very possible to have many smoothly running, daily driver reliable rotaries, it all depends on the tuner and car setup. But when boosting heavily, its always nice to know that in a "conventional engine" you can replace internal engine components with stronger parts=rods, pistons, crank shaft etc.
09-16-2005, 02:54 PM
#36
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you guys do know that you CAN get new, aftermartket lightwiegh,reinforced, or otherwise rotors for the RX7s. you can also get high performance seal kits, and everything else (or comperable) to a convetional engine. rotories can be very reliable if you know what you are doing. if you drag hardcore on teh weekends and do it for years, w/out a rebiuld of course its gonna go piff... but so will a boxer, i4,v8 and what not.
also to they guy that siad the mistake was putting the 1.3l in it. sorry to tell you this but if they put in a i4 or i6 they would have really tweaked w/ car balance since those engines weigh more they will offset the weight to the front and just throw crap off. think what would happen to the weight balance in a wrx if they put a inline 4 in it? you want a non rotory rx7? buy a miata.
IMHO in engine superiority it goes Boxers,Rotories,Inlines,Vs.
also to they guy that siad the mistake was putting the 1.3l in it. sorry to tell you this but if they put in a i4 or i6 they would have really tweaked w/ car balance since those engines weigh more they will offset the weight to the front and just throw crap off. think what would happen to the weight balance in a wrx if they put a inline 4 in it? you want a non rotory rx7? buy a miata.
IMHO in engine superiority it goes Boxers,Rotories,Inlines,Vs.
04-06-2006, 11:34 AM
#40
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Im in the mazda dismantler every day and they sell more rotors & housings than anything else i think... even though the rx7 isnt a very abundant car... one could make some inferences from this information...
11-08-2006, 12:56 PM
#42
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Originally Posted by pooster.online
why is that? I know they make great topend, my dad owns a 6 speed rx-8, but damn... the torque is crap!
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