Which is better (MR2, RX-7, Eclipse)

ademarco6 · #1 09-09-2002, 03:55 PM

Hello,
I've been researching these three cars and wondering which engine 3SGTE, 13B, or 4G63 has the most potential for the stock internals? I'm aiming at least getting 400hp to the crank. Thanks

RXtony7 · #2 09-09-2002, 08:08 PM

What generation 13B? If it's the 3rd generation 400 is reachable, as well as on the 2nd gen 13B's.

rx racer · #3 09-12-2002, 10:10 AM

Both second and third gen RX7 will make 350+ RWHP without having to rebuild or port the engine.

turbo2nr · #4 11-01-2002, 01:57 PM

4g63t -wit 4g63t can withstand 22psi of boost wit stock pistons and internals but be warned 97+ eclipse has crank walk also 2 run 22psi u will have 2 upgrade turbo, fule,egnition system.but 400 hp is eaisly made with these motors

3sgte- good motor but abitch 2 work on, mu boy has 1 wit 140,000 miles the car is fallin apart the motor doesnt like being abused. yo can run safely on 14psi with stock internals. 1 problem wit da mr2 is the uneven weight distrubtion its like 30\70 so it sucks.

13b- rotorys are amazing creations. 400 hp can be made easily,
but u have to get 2mm seals and also plz upgrade ur coolin systems cause a rx-7 13b has major cooling problems. also u should get a upgaded fuel system like a haltec or motec. also u should get msd and upgrade ur turbo to a t-78 and get a front mounted intercooler and u can easiely make 400hp no probs.

also

consider the sr20det motor its is a great motor. it can take 14psi stock amd very workable and reliable and u can put it into a lot of cars. 400hp is eaisly made with minor upgrades suck as fuel system, intercooler,exaust,intake,and boost controller

ttrx7racer · #5 11-17-2002, 02:03 PM

crap on a 3rd gen intake and exaust puts you around 350 alone because of the air restrictions. a couple more mods on you got way of 400 rwhp

Devilbat · #6 12-08-2002, 06:20 PM

Unless you have a lot of time and money to burn you don't want to mod a 3rd gen RX-7. The rotary engine is stressed beyond any sane limits bone stock. Modified it's just a matter of time before the engine lets go.

If you like to pay for regular engine rebuilds go ahead with the RX-7.

Personally I'd opt for an RX-7 and install an engine that was designed with horsepower in mind. Namely a buick turbo 6 or N/A v-8. These cars look like they were almost designed to be powered by v-8s.

Sacker90 · #7 12-10-2002, 05:17 PM

RX07 times ten!!!!

Kaneto · #8 12-10-2002, 07:46 PM

Quote:

Originally posted by Devilbat
Unless you have a lot of time and money to burn you don't want to mod a 3rd gen RX-7. The rotary engine is stressed beyond any sane limits bone stock. Modified it's just a matter of time before the engine lets go.

If you like to pay for regular engine rebuilds go ahead with the RX-7.

Personally I'd opt for an RX-7 and install an engine that was designed with horsepower in mind. Namely a buick turbo 6 or N/A v-8. These cars look like they were almost designed to be powered by v-8s.

Looks like you've never owned an RX-7.

Or if you have, you didn't know how to take care of it.

Steel · #9 12-21-2002, 10:57 PM

well, the FD's do tend to burn out quick, but can make mad horsepower, while with the FC's they dont quite make as much (easily, and streetibly) but the FC's engine's are pretty bulletproof. Stick with 3mm seals too if you get an FD, they can take it a bit better than 2mm, especially if you run into detonation and are lucky enough not to kill your engine. I wouldn't recommend putting a pisst-on engine in an RX-7 unless you LIKE to be ridiculed. It won't matter if you're making a billion horsepower and run the 1/4 in 2.3 seconds, you still won't get respect from a LOT of passionate 7 owners if you put a boinger in there.

I'd have to say the Toyota and the Mazda are the funnest cars, and have a high HP potential, but if you not willing to put the money and blood, sweat and mutherfuckin tears in them, then stay away.

rxfanatic · #10 01-08-2003, 12:53 AM

This is the freakin second time I saw someone suggest 2 put a pisst- on engine to an rx7, I know its a lot cheaper to buy a v8 than to upgrade a rotary.... well u have to deal with a diff car... Rx7 is made for a rotary engine and driven by class drivers...

Cheers to the owners of 7's

issanniracing.com · #11 01-28-2003, 09:36 AM

well with a 13b-rew with just bolt on mods and a power fc you can make over 400 RWHP.
stock twin sequential turbos and stock ports on the motor.
you can run 11's with just BOLT ONS!

http://www.nopistons.com/forums/inde...T&f=63&t=12062

great forum for the rx7 and lots of knowledgable drivers and tuners.

NISSANSPDR · #12 01-28-2003, 12:50 PM

The RX7 has the best starting point and responds very well to mods...but has reliability issues out the ying yang...car looks the best bar none

The 4G63 has probably the best bang for the buck and will run 12's w/not too much invested...but has drivetrain issues you have to watch out for...Eclipse/Talon/Laser has the sleeper look if you like that

By far I think the 3SGTE is the best w/a combination of reliability, able to hold 400HP easily and being in a nice car like the MR2 Turbo! (Looks like a baby Ferrari)

:bandit:

Misundaztood · #13 02-11-2003, 11:19 AM

Go for the RX7. However, be forewarned the rotorys aren't ascactly reliable...

Sleepy_D · #14 02-16-2003, 01:46 AM

Quote:

Originally posted by sr20det2nr

3sgte- good motor but abitch 2 work on, mu boy has 1 wit 140,000 miles the car is fallin apart the motor doesnt like being abused. yo can run safely on 14psi with stock internals. 1 problem wit da mr2 is the uneven weight distrubtion its like 30\70 so it sucks.

Let's not bullshit the guy. Weight distribution isn't 30/70, its closer to 45/55. Yea, they can be a bitch to work on if you don't know what you're doing. And, your boy must not be taking care of his car/running it into the ground because these engine are good for much more than 140,000 miles. I have 202,000 miles and mine still runs like new. Starts up instantly and never a problem. Even if you can't make 400 hp in a 2nd gen MR2 you don't need that much to have a fast car. If you were to buy a first gen and put in a 3sgte and push it to close to 300 hp you can run low 11's in it. One thing I will say is that you can spend a matter of hundreds $ to make a second gen MR2 sexy, or a matter or 100's to make a first gen fast, but you'll spend more making a first gen sexy then you would want to spend.

Polygon · #15 02-16-2003, 05:34 PM

Here are my thoughts.

MR2: If it is a new MR2, don't waste your money unless you plan to do an engine swap or waste money on building the internals. If it is one of the older All Trac turbo MR2s, then I would say go for it.

RX-7: Don't bother unless you like spending a lot of money for gas and repair bills and like smelly exhaust. The RX-7s engine has too much port overlap allowing exhaust to be in the combustion chamber when the rotor comes around to fire. This caused the car to stall at idle so they compensated by using more fuel at idle. This also makes for bad air in the combustion area, never good. It also makes for stinky exhaust fumes. I also hear that the RX-7 is a handful to work on and you have to work on them a lot, namely seals I hear.

Eclipse: The 4G63 is a GREAT engine to work with namely the first gen engines and third gen engines from 1998 - 1999. They can take a good amount of boost on the stock internals and they have a huge amount of aftermarket. They are also reliable engines as well. The 4G63 is nothing to laugh at. Also check out the build up guide in this months Sport Compact Car. It is a great guide on how to build up and tune your 4G63, VERY informative. Also that info can be related to other engines and applications.

My choice is the 4G63 without a shadow of a doubt!

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