How good is the engine?

[suprafan]

stock rwhp from dyno 280 310 assume 15% drive trainloss to arrive at crank hp
basic performance upgrades
dp ~ $290 removes cats allows higher boost by decreasing back pressure
exhaust $700 ditto
bcc removes fuel cut allows higher than stock boost leval $100.00
boost controler (optional) allow controlof maimum amount of boost the stock twins tend to have decreased durability and not make more power after 18 psi of boost 3-500.00
intake optional less restricve breathing
BOV ? if needed till higher levals of boost needed sounds cool 300
the above mods at 18 psi dyno out 420 rwhp or about 470 at the crank for about 1300.00 supra store for more info re upgrades

[racing fan]

Originally posted by kepone
ok.. heres the dilly

of those, the supra tt's engine is the strongest.. it can handle up to around 700 crank hp with totally stock internals.. and it doesnt take anything more than a few bolt ons ( head gasket, head studs, lower compression/harder pistons, and good rings ) to make it good for 800-900hp.. something like a JUN 3.3 liter stroker kit will make the engine good for well over 1000hp.

The supra's 2jzgte can handle well over 700hp. Saad Saad from AZ got 874 rwhp, well over 1000 at the crank, on a stock engine and no nos. Also I think it was Paisly and trd that had put a 2jzgte into a tacoma to race and they were going to get a fully built engine so they decided to see how mush the stock block could take. Allegedly they were running 1200rwhp and it blew, but because of detonation. The 2jzgte is definetly one of the best engines ever with its ability to hold massive amounts of power on stock internals.

Originally posted by kepone


the 20b is a 1.3 liter i believe..

Actually I think 13b is 1.3 therefore 20b being 2 liter

[suprafan]

supposedly the engine was designed this way because of the planned use in a Japanese Road racing series they figuared rather than build cheater engines they just designed the thing to take massive Hp and detuned it to sell as the stock engine it is essential a racing engine DZ

[OneQuick6]

Its not only the VR4's engine that can't handle the higher psi, its its fuel system...to put in short, a VR4's fuel system is just crap!

I like the RX-7, but everytime I see one for sale, it always says, " brand new motor ", I wonder why that is!?! I believe b/c this things blow easily. I don't know much about the new RX-8 though, so I will not comment on the Rotary engine entirely.

The 300ZX, the only bad thing I see about this car is its suspension, while it gives it better cornering performance, I think it lacks drag car ability.

The Supra, I dont' know how they did it, but they can handle insane HP and PSI in stock form, good job! Now if only they had made it AWD.

The Skyline is my favorite, I don't think they look as nice as say the GTO or RX-7, but they are a hell of a drag car. Their engine is pretty strong as I understand as well.

I like all the TT's, I cannot say 1 is better than the other. I have a VR4, and I realize its faults and good things, but I also acknowledge every other cars pros and cons and realize my VR4 is no better in stock form than anything else. I have a VR4, and I have to say, i spent more money modding it than I can really remember, in the 1/4 its a great car, but from a roll, a BPU supra would just hand me my ass....Its a shame mitsu didnt' do a better job with our drivetrain...

Oh well...

[red12]

hello i would like to say something real quick about the supra and skyline.... Its PROVEN time and time again that the rb26dett has a stronger bottom end then the supra.... i say this because no only was it documented by various japneses turners it has aslo been demenstrated for instance the velislide skyline 1340hp at 40psi 2.6l!! exvitermini skyline 1500whp 11,500 rpM!! 50+ psi 2.7l stroker apexi drag max skyline 1100 hp 2.6l the list goes on.... the highest ive ever seen a supra engine being pushed was 1400hp which was the jun land speed supra. it was sporting a 3.2l stroker kit. you get what im trying to say? the skyline has anyway for 400cc-700cc less displacement of the famed supra enigine.... i used to work for toyota as a tech so dont get me wrong i dont hate toyotas at all. They are the simplist cars to work on and the ONLY jap automaker whos cars can take 15yrs of abuse NOT love abuse. AND for the records RACERX the skyline motors are NOT aluminum they are CAST IRON.

[datsunadict]

I love to hear guys bickering over what is better.

I would like to give you the skinny on the rotary problems. The main problem with the wankel rotary is design. A rotary engine doesn't have a solid crank like a piston engine, it uses a planetary gear to allow the rotar to have 4 strokes in 4 different parts of the engine. Rotary engines have a weak bottom end from the design stage, so trying to boost the hell out of them is just asking for it. However, the advantage to the rotary design is that it fires on all three sides of the rotars, and revs to stratospheric levels. A well built rotary engine, turbo or na, can rev to 10,000 without difficulty. It can also make about twice its displacement in hp in NA form. So, if you think about it, the rotary engine, pound for pound, is one of the most efficient and potent engines available. It certainly can't hold its own with the big boys (3.0L supra I-6, 2.6L Skyline I-6) but it will decimate anything in its class. Find me a 1.3L car of any type, and try to outrun an RX-7.

[bambuko]

Too bad I didn't see Kepone's post until friggin 5 years after he left it. This is for anyone that still reads this old thread...

Kepone: I can't believe that you think that an iron block motor isn't any stronger than an alluminum block motor. That's unbelievable to me, you clearly have no idea what you are talking about. You don't know metals, nor do you even know the basic chemical traits of metals-2 of which, Aluminum (AL) and Iron (FE), that are actually very well known and their properties easily obtainable.

It irritates me when people speculate on these websites and then give people the wrong idea. An inexperienced modder can totally destroy their car's engine listening to people who don't know jack. Let me educate your clueless ass:

First off, the fundamentals. Aluminum and Iron are basic elements found in the earth. They are not man made.

People: Iron is stronger than Aluminum in every way. Iron is denser, heavier, and MORE RESISTANT to warpage than Aluminum. This is why Iron has a HIGHER melting point, and a LOWER freezing point than Aluminum. Kepone is totally 100% incorrect about the two metals being equal in their strength and durability, because they're not. Iron will take way more of a beating than Aluminum ever will, however, Aluminum IS lighter and less expensive which is the only reason why most car manufacturers go with that material today. They know Aluminum is weaker, but engines are becoming more efficient and so having a stronger block is becoming less important in today's modern cars.

Cast iron block motors like the 300zx's are much tougher than aluminum ones.

By the way: 300Zx's are manufactured well, I don't know where you got that BS from either. The motors have been proven to handle 800 horsepower with stock internals. Don't believe me? Why don't you give Greg Dupree and Sebastian C a call at Specialty Z in California and ask them. They've gotten that kind of power out of many Zs with stock internals numerous times. Not just that, but Zs are reliable at the kind of power. Mine does 600 hp on race fuel and, even though it cost me a lot of money to get it there, my motor never breaks down. I don't know if the Supra is that reliable at that kind of power level.

If I spent more money, I could make my Z crank out 1,000 hp no problem. Yes, they are not the best drag cars, because they're set us as highway cars. My top end power screams, and I'll take on ANY Supra with comparable power any day.

Supras are amazing cars but they are way overrated. The 300z's motor is just as good, but because of the V6 design it is more difficult and more expensive to work on, so we see less heavily modded Zs out there. The Supra's straight six setup gives it more torque low end, but that's about it. To me, a true super car doesn't just accelerate hard at the low end-that's what S2000s, EVOs, Neon SRTs and WRXs do-but it's the top end power that really defines a super car. This is where Z's shine. The RX-7, although having a gorgeous body design and good motor concept, can't put out crap without breaking and this includes even stock levels of power. Its durability is horrible, which is why the car sucks. Otherwise, it's more refined than both the Z and Supra were it not for its severe lack of durability. The VR4 is not a bad motor either. It is less durable than the Z and Supra though as well. The head gaskets on those things are a serious liability, but if one takes care of the motor, then it can do some good damage.

There, I'm done. 5 years later ha ha....

[Yashveen]

here's my 2 cents...
the RB26 is a fantastic engine even though its weaker than a 2JZ...i went to australia once and went to an auto convention for tuned out rides and saw a skyline that churned out bout 1000kw(1300hp??)and was running around 15,000rpm(yes 15,000rpm)couldn't believe my eyes and the best part it was STREET LEGAL!!!
I believe the best Mazda engine for me is the 26B quad rotor...sum guy at the auto show put it in his 1994 BMW 3 series(that was a shit choice) and was running close to 18,000rpm(yes 18,00rpm)and tuned out bout 1400hp(not sure)
But the leader remains the 2JZ...its an awesome engine...it takes watever u throw at it...its so strong and so reliable...i guess Toyota really knows how to build sum engines...words cant describe a 2JZ...

Bottom Line:
Best Engine 2JZ(consider the fact that it can kick out so much power, without breaking down and it was designed in 1993!!!)
The RB26, wonderful, light and it moves like hell IF u can u set it up straight
The 13B is amazing...consider the fact that 2 rotors of 1300cc can output some amazing numbers, but weakest, least reliable and poor fuel economy.