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-   -   rx-7 vs supra vs 300zx (https://www.rx7club.com/kills-archive-229/rx-7-vs-supra-vs-300zx-423457/)

MARTIN 05-09-05 12:34 PM


Originally Posted by Its NA I swear
low 12's on pump gas and low boost.... still on stock bottom end and head. 6K includes 4000 for the car and rebuild. I'll give you a much better time after the roll cage and new wastegate spring are in.

mk3's can run 13.5's with a dollar's worth of washers to shim the internal wastegate, intake, and exhaust...what's your point?

I know there are quick 2nd gen rexes, however I have not come across a single 2nd gen that could pull on me drag racing. I'm sure you don't come across quick mark 3 supras often.

rx7: Looks badass. out handles the crap out of my car.

mk3 supra turbo: heavy, runs rich stock, gets richer with intake+exhaust...aftermarket is very expensive. not many sub 13s ones in wisconsin. fastest 7m powered mk3 runs 10.66, and very few bother with road racing. body roll, oversteer...suspension needs a lot of work.

300zx turbo: economy turbo...kinda like the 1g eclipse turbo! my girlfriend's brother has one. his suspension seems worse than the supra, but it could just be worn from all the years of abuse.

All my boys have mk3 and they all have their own different mods.... 13.5 is not possible with the washers intake and exhaust.. how much boost are you claiming it takes to make it to 13.5. I had on of my boys go with the stock turbo, 12 psi and he got to low 14's... not even 14 flat... And this was driven by his dad, who has raced domestic power since his early teenage years, and now also owns a modified supra. The fact is that he got to hit in the 13's with an up grade... and at that, t70 turbo on both of our cars, both using the same wastgate with 10lb spring, and I took him off the line(using antilag) and had about 1 car on him. after third gear I was gaining more length as I was having a problem with boost( it will rise and then fall out at higher rpm). So instead of 10 I was hiting like 12. Dont get me wrong, mk3's are great cars, their interior is so much more refined than ours. And IMO they have a better overall shape to their exterior than ours. And yes the IJZ did come on mkIII's along with the soarer. So its not like comparing the 20b.

EJayCe996 05-09-05 01:37 PM


Originally Posted by zoonwen
the difference is that 1jz did come in mk3's, same with 240 with sr20's. 20b's only come on 3rd gens not 2nd gens.

I have a cuple friends with black top sr20s , there quicker off the line but 1jz are stronger in the long run.

20Bs came in cosmos not 3rd gens. Are you sure you own an rx-7? and where the hell are yall when we have rx-7 meets in Irving? Don't make me find you and kick your ass for not showing up :)

HoangRx-7 05-09-05 01:38 PM

ive seen plenty of mkIII's run mid to high 13's with exahust and intake, with the washer method to shim the wastegate........ im not saying rx7's are bad but you guys are bashing them like they have no competition..........

Whizbang 05-09-05 01:41 PM

its a car specific forum. kinda happens

HoangRx-7 05-09-05 01:47 PM

then don't say that im not "bias" or anything.......... ;)

dag 05-09-05 01:52 PM

I own a TII however I've worked on both. Engine swaps aside the MKIII Supra fitted with a 7MGTE can't really compete when you're talking about an all around sports car. The RX7 out handles, and out powers (to weight) the MKIII for the same amount of money.

HoangRx-7 05-09-05 01:55 PM

just got my 7 not too long ago and finals have been keeping me busy but ill be sure to show up during the summer, maybe ill take my supra out and my bro can drive the 7........

Whizbang 05-09-05 01:55 PM

mkiii is REALLY long to. just something i noticed.

Its NA I swear 05-09-05 02:43 PM

boostaddctn on supraforums.com ran a 13.5 with the wastegate shimmed to 11psi, intake, exhaust. Nitto 555r's. I've seen the slips, I have seen the video. he didn't have the best 60' time either. I can post the slip if you still want to call BS.

The mk3 isn't a sports car at all. GT.

HoangRx-7 05-09-05 03:03 PM

ive seen that too :bigthumb: i was gonna find the video and post it for the non-believers but i couldn't find it

bigturbo 05-09-05 03:41 PM

even so what does that prove. Give an rx7 nittos, intake, turbo back exhaust and a boost controller set to 10 psi or so(fcd to keep fuel cut down) and it will be right there too. And exhaust for rx7s is cheaper for the most part(unless you go custom). I would say money is similar for drag results and handling has already been discussed serveral times.

MARTIN 05-09-05 04:20 PM


Originally Posted by Its NA I swear
boostaddctn on supraforums.com ran a 13.5 with the wastegate shimmed to 11psi, intake, exhaust. Nitto 555r's. I've seen the slips, I have seen the video. he didn't have the best 60' time either. I can post the slip if you still want to call BS.

The mk3 isn't a sports car at all. GT.

Thats one of those one in a 100 run, find me 10 guys that run the same setup and run in the 13's..

And for the last post. The mkIII's need a FCD too or a lexus afm in order not to hit Fuel Cut..

Its NA I swear 05-09-05 04:47 PM

fuel cut on the mk3 is 14psi. what is it on an rx7? not an argument, just wondering. is there a simple mod like the lexusv8 AFM + 550cc injectors that will raise the rx7's FC?

obviously on an mk3 the 550cc + lexus afm mod should have an adjustable fuel pressure regulator, fuel pump, and an safc2 to get the best gain from the mod...but it does raise fuel cut to 27-30psi.

touche...exhausts for the mk3 are rediculously expensive. most people make their own. $600 for the HKS turbo cat back. Mine was 3 hours of welding, 2 hours of flange milling, $200 in 304 stainless steel.

Its NA I swear 05-09-05 04:52 PM

keep in mind his 60 foot was horrible. I'm sure he could do better, but I admit he is a good driver...

tjeter 05-09-05 09:13 PM

?
 
wasn't this forum for a stock for stock comparison???

just use the hard facts of the two contenders.

drum roll... in the right corner the toyota supra turbo weighing in at...
3534 lbs.. producing 232 horses and 254 lbs of torque.(being generous and using hte most powerful version of that supra produced because the earlier years had about 8 less lbs of torque and 2 less hp..0-60: 6.6-7.2( from various sources)
qtr mile: 14.9-15.2

in the left corner... Mazda RX-7 Turbo ( italics means 87-88 Turbo II)
1987-88 Mazda RX-7 Turbo... weighing in at 2830 lbs...producing 182 horses and
182 horses and 183 lbs of torque.. 0-60: 6.5 second, qtr mile: 14.9


Also in the left corner... 1989-1991 Mazda RX-7 Turbo weighing in at.. 2850 lbs producing 200 horses and 196 lbs of torque. 0-60: 6.4, qtr mile: 14.7 ish so many different times around im just averaging really.

THERE YOU GO YOU GUYS DECIDE WHO THE WINNER IS LET THE DEBATING BEGIN! :bigthumb: :rlaugh:

Whizbang 05-09-05 09:22 PM

i win.

HoangRx-7 05-09-05 11:59 PM

not true, the most powerfull mkIII had a 2.5 twin turbo which produced 280 hp...... with a quarter mile time of 14 seconds.......... they also had a twin turbo R version that was much lighter..........

rarson 05-10-05 01:27 AM


Originally Posted by zoonwen
the difference is that 1jz did come in mk3's, same with 240 with sr20's. 20b's only come on 3rd gens not 2nd gens.

I have a cuple friends with black top sr20s , there quicker off the line but 1jz are stronger in the long run.

NO, the 240SX never, EVER, in ANY country, ANYWHERE, came with an SR20 in it. The 240SX always came with the KA24 motor. You must be thinking of the 180SX, or maybe the Silvia, or the Sileighty, but unfortunately for us, we never got any of those cars in the US.

If you think that you're going to say that these cars are "basically the same" because they share the same chassis, then shit, why don't you try importing one into the US? Just because it's RHD, it's still "basically the same," right?

For that matter, in this market, where it matters, none of the engines you were talking about came in the cars you were talking about. A JDM car is not equivalent to a similar-looking USDM variant, and the NHTSA can help you out if you're having trouble coming to grasps with this concept.

One more example of the fallacy of your argument: the IS300 comes with the 2JZ-GE engine. Do you know how much of a pain in the ass it is to swap in a 2JZ-GTE? There is more involved in engine swaps than just the money you spend on the engine.

MARTIN 05-10-05 03:11 AM


Originally Posted by rarson
NO, the 240SX never, EVER, in ANY country, ANYWHERE, came with an SR20 in it. The 240SX always came with the KA24 motor. You must be thinking of the 180SX, or maybe the Silvia, or the Sileighty, but unfortunately for us, we never got any of those cars in the US.

If you think that you're going to say that these cars are "basically the same" because they share the same chassis, then shit, why don't you try importing one into the US? Just because it's RHD, it's still "basically the same," right?

For that matter, in this market, where it matters, none of the engines you were talking about came in the cars you were talking about. A JDM car is not equivalent to a similar-looking USDM variant, and the NHTSA can help you out if you're having trouble coming to grasps with this concept.

One more example of the fallacy of your argument: the IS300 comes with the 2JZ-GE engine. Do you know how much of a pain in the ass it is to swap in a 2JZ-GTE? There is more involved in engine swaps than just the money you spend on the engine.

For your information, I had an IS300, yes it does come with the 2jz-ge, but the only problem with the swap, is the vvti which can be kept by using the gte block and the GE head. BUt most people doing the swap go all out and also install the complete GTE longblock...

but I still dont get your argument... an rx7 here is still called an rx7 in japan, along with the supra. They came in different trims, with different motors and packages. They had the 1jz, the 7m, and also they had the Turbo A IIRC edition, which was the most fixed up or most powerfull version.

RETed 05-10-05 03:28 AM


Originally Posted by zoonwen
How hard is it for you to understand that there are people out there like me, who have a 1jzgte in our supra??? I know atleast 5 other people in the dallas area who also have 1jz also.

Do I live in the Dallas area?
NO.
Can't you read my profile?



even though the 1jz was not offered in the supra in the us, its fairly easy to obtain and swap, which i did.
Define "fairly easy"?
Last time I checked, it wasn't THAT easy to get.
How much did you pay for it?
I bet you paid more than what it costs to get a 7MGTE.

Go away.


-Ted

RETed 05-10-05 03:30 AM


Originally Posted by Its NA I swear
fuel cut on the mk3 is 14psi. what is it on an rx7? not an argument, just wondering. is there a simple mod like the lexusv8 AFM + 550cc injectors that will raise the rx7's FC?

Who cares...
I can pull the plug on the boost sensor and instant no overboost fuel-cut.
You want to boost to 20psi?
Sure, the stock ECU won't hold you back.
I dunno how long everything is going to last though.

Seriously, do your research before putting all this crap on here.
You're wasting your time preaching to us.


-Ted

HoangRx-7 05-10-05 03:37 AM

ok reted......... your a moron for saying anything about how to install a 1jz...... it's a pretty straight forward swap.... only difficult thing is extending the wiring harness.... and swapping some body plugs..... and of course your gonna pay more for a 1jz, its a far more superior motor, even though its .5 liters smaller. Don't talk about something you've probably never done............. and on the fuel cut note... why are you beeing such and ass about it, he was just asking a simple question, i belive its at 10 psi, correct me if im wrong.

And there have been 2.5 jza70 supras imported into the us......... the only thing is its probably cheaper to find a shell and get a front clip, thats why people don't import them, they sell half cuts........

Rx-7ninja 05-10-05 03:42 AM


Originally Posted by RETed
Who cares...
I can pull the plug on the boost sensor and instant no overboost fuel-cut.
You want to boost to 20psi?
Sure, the stock ECU won't hold you back.
I dunno how long everything is going to last though.

Seriously, do your research before putting all this crap on here.
You're wasting your time preaching to us.


-Ted

RETed is my hero.

STOCK USDM COMPARISONS guys..shit.

the 1jz did NOT come on any supra period, in the USDM, which means it's exempt from this competition.


Argh...this thread makes my head want to explode.

MARTIN 05-10-05 03:42 AM

Ted, atleast here in Miami we have like 1000000 importers. Many of them stock like one or 2 1j's and the rest 7m's. 7m's are like a dime a dozen, from the same guy that sells me my motors, 13bt's longblock with tranny 1100, comp guaranteed. 1 month Warranty against any seal damage...I get them cheaper alot cheaper, as I had bought more than 4 motors from him. but the point is that regular price is 6 or 700 for the 7m longblock, and 1200 for 1jz. I do admit though, they hold power good. I know this one guy called smiley, how has over 900hp stock block, modified head(port polish and angle job). Using an safc and profec e1 to regulate boost. AT low boost and off the chart afr he managed a 690.

HoangRx-7 05-10-05 03:45 AM

nobody said stock usdm cars only, when i first started to read the post the mention that a jza70 was just alittle faster than a n/a, that automaticaly brings it into the argument


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