2nd Gen RX-7's

[Initial-D-Nerd]

I am looking into purchasing a 2nd Gen RX-7 and i was wondering about a few things before actually getting one, i have read up on them at RX7club.com and it has helped out tons. I am just curious about the GXL's and the Turbo II's 13b engine. Are there lower compression rotors in the Turbo II's 13b, or is it just a GXL with a turbo mounted? and also, are Turbo II's very common to find, or would it be better to purchase a GXL and do a turbo swap? If u guys could help out, it would be greatly appreciated. And please, if anything i have stated here is incorrect, correct me! :thumbsup:

[StraightSix]

The TII has lower compression rotors. The n/a engine is a six-port, the turbo is a four-port. Very different engines.

TIIs are rather hard to find. How much power do you want - up to around ~220hp a built n/a will be as strong and more reliable than a turbo.

J

[Wookey]

k, I personally own a 86 2G RX7 GXL. It has a rebuilt motor in it and so on..If you dont street port it and have an excelent exhaust this car is gonna be slower than molassis! You will get beat by Civics. The only thing is, is that you will be losing in style! I personally love my RX7 even though it is slow... It is not worth the money to buy an N/A RX7 and then put a Turbo 2 motor in it....
To swap a TII motor into an N/a this is what you will need to replace. Motor, tranny(T2 tranny is stronger), ECU, Driveshaft, new hood unless you buy a front mounted intercooler, new exhaust, etc.... Not worth the hassel. Just buy a T2 and you'll be off and running.... Just make sure you do a compression test and so on before you buy a 7!!!! If you need more info just PM me!

[ecstasy_civic]

i had an 87 gxl and i loved it so much but mine had a few problems, throughly check it out. i would buy another one in a second but im loving my civic right now;)

they are very fun to drive and handle like nothing else.

[twincharged86]

If you're seriously interested I have a 88 gx with a turbo II conversion (JDM series 5 motor, tII tranny, harness, ecu) that's not runnning

the rear rotor is dead, most likely the apex seals

2000obo, w/ TII wheels, sideskirts, custom driveshaft

was a project car but now have too many cars to fix

ask for Orlando or Mike if you wanna take a look, 225-1281

[Chris Ng]

GTU-R?? What model was that?
JDM model? How do you figure?

You still figure your motor was P-Ported?? That was the smoothest 800rpm idling P-port motor I have ever seen...

You have N20??

What was your fastest time out at the strip when you have it?? high 18's?

[Initial-D-Nerd]

Ok, thanks a bunch guys, i think im goin N/A because i can easily obtain a 300bhp 13b that was tuned by racingbeat performance. I think that it was a lucky find and i can get a good deal for it. So all i need now is a 2nd Gen GXL with a mint body. do you people think that i would be able to purchase one for under $5000 canadian?

Thx, Laters

[Chris Ng]

ummmm....
300 hp out of a n/a 13b?

Not on this planet... even if you were on the bottle, this would be next to impossible...

You'd be lucky to get past 200rwhp on an NA block without some radical porting.. and by that point, the motor would not be streetable.. and you'd only see that peak number at about 10,000rpm+ ...

[RX-7_TWINTURBO]

i think we should turn this into a pic thread :bigpimp:
http://www.imagestation.com/picture/sraid59/p3d1ffc444eb9ef35a179af5ee1392ea0/fc5e9545.jpg
http://www.imagestation.com/picture/sraid59/p8341bf0a3ec0546ac66deda428937e6f/fc5e954e.jpg
http://www.imagestation.com/picture/sraid59/p97889f3f0aadea403037c3e268e08f5e/fc5e9553.jpg
http://www.imagestation.com/picture/sraid59/p598e90bfbdb4ded149ea3ef1df399a35/fc5e9556.jpg
http://www.imagestation.com/picture/sraid59/p1f03ac4389d2c5488b0df892d14abc30/fc5e955a.jpg
http://www.imagestation.com/picture/sraid59/pc9919bb2a9d17edde81736a925ddfcdc/fc5e92bd.jpg
http://www.imagestation.com/picture/sraid59/pb0c3a92a681527bad082367bb10d50d2/fc5e953f.jpg
http://www.imagestation.com/picture/sraid59/pee2a95e772f02ccc38384b06ab450547/fc5e9567.jpg

[Initial-D-Nerd]

This rotory is from racingbeat, and its a race bread engine, it has bridged ports... the works, i doubt it will be very reliable tho

[RX-7_TWINTURBO]

:D

[Maxt]

Originally posted by SinisterProbeGt
I had A 88 GTU-R Jdm Model.
P-Port Motor and no2 had lots of probe with this car but I loved it just the same If you ask Me if you can get your hands on a tt2 then by it. I fnot wait cause doing a swap from a tt2 to a gxl is gonna be very expensive you have to buy a whole parts tt2 car for the motor comp wiring mounts everything your better off getting a tt2


"thats all I have to say bout that" Forest gump 1997

Umm you car was left hand drive, there are no n/a's(or gtu's for that matter) in Japan, all JDM cars were turbo, n/a was export only, even the verts were turbo in Japan. Also your car had a bonestock motor port wise...P port motor use twin single blade throttle bodies similar to mikuni or dellorto setup, yours had the stock intake on it...
Maxt

[Maxt]

Originally posted by Initial-D-Nerd
I am looking into purchasing a 2nd Gen RX-7 and i was wondering about a few things before actually getting one, i have read up on them at RX7club.com and it has helped out tons. I am just curious about the GXL's and the Turbo II's 13b engine. Are there lower compression rotors in the Turbo II's 13b, or is it just a GXL with a turbo mounted? and also, are Turbo II's very common to find, or would it be better to purchase a GXL and do a turbo swap? If u guys could help out, it would be greatly appreciated. And please, if anything i have stated here is incorrect, correct me! :thumbsup:

Now that the BS has been cleared up, back to the original Q's..
There are alot of difference which have been stated, the TII also has a stronger rear end than the GXL, the GXL though comes with a limited slip which the GX or SE models do not... The GXL has nicer seat :)... The GXL uses the standard n/a motor..
Really, looking back now that I am into stupid power levels, a GX with a TII motor would be faster than a TII, since there is a big wieght difference between them, that being said a GX with a 5 bolt conversion like the one for sale would be a decent car, if you are intent on running a haltech and a fmic.
For comfort with run and forget mechanicals=GXL
Bare bones and to just have an RX-7=GX
Comfort with some muscle=TII
50/50 street/drag car and lotsa work but killer speed=GX with JDM TII s5 motor/to4e/5 speed trans, fmic,haltech and 5 lug conversion, no frills and loads of power..
The reason I like the GX conversion is they are shit cheap, and light and you pretty much end up with a garage full of stock TII parts once you start juicing a TII, nothing is stock in my car anymore, I ditched the intercooler,turbo,efi,fuel system etc etc and went aftermarket anyway, what it made it worthwhile s for me, was I got the TII for GX pricing(Thanks Chris:thumbsup:)
For around 10-15 g's though if you are serious, you can have viper kicking performance for the price of tiburon...Maxt

[Initial-D-Nerd]

so is what Chris stated true? that it is impossible to have a 300BHP N/A 13b? the engine is fresh, never been used straight from racingbeat with a spec sheet and everything... so i dont know :dunno: someone please clear this issue up. :thumbsup:

[persid]

It's probably possible, but it would NOT be streetable, would NOT make any power below 4000rpm, and would NOT last more than a few thousand km.

What you're buying is most likely a race engine set up to work properly between 8000rpm and 10-11000rpm and get rebuilt at least once per season. First of all, once you find a good body to put it in, you'll need a special race tranny that won't blow up at high rpms like the stock ones do. After that you'll need a special race clutch for the same purpose. And let's not forget a race flywheel which won't fly off and kill you at 9000rpm. Or you can simply choose to keep the car under 8500-9000rpm and make less power than a stock engine would.

All in all, a 300hp n/a 13b is close to a worst engine I could think of having to drive on the street :)

If you want a daily driver with that kind of speed, pick up a T2. If you don't have enough to keep up a T2, pick up a N/A with a blown engine, port it, rebuild it, do a few mods to get you to 170-180rwhp and enjoy yourself.

[Maxt]

Actually most of the bridgeport owners report more torque in the midrange than the typical streetported motors, the idle is rough, but it will smooth out, power peaks at about 8500-9000 on a bridgported motor which is well within the capabilites of the stock tranny and many other stock components, it also depends if its a partial bridge or full bridge... I think you could get 150-175 rwhp with the stock intake and a header out of good porting job, if you went balls out with stand alone efi, and twinned throttle bodies like the Japanese do on their n/a's they build for circuit racing, you could crack 300 rwhp, but that would be peripheral port in a top knotch built motor, I would drive it on the street, Chris is just getting old....
I will be driving a bridgeported turbo motor on the street this summer, and I am looking at building either a non turbo bridgey or a Peripheral port n/a motor for my other car as well.. What people considerable streetable is a personal choice, according to all the clean finger nailed people at the speed shops, my truck engine should not be streetable either, its perfectly streetable, it sounds like a top fuel car, but its perfectly driveable in traffic, if you want comfort, buy a cadillac..
The thing with the bridge ports is how thin the bridge is cut, being that the bridgeport is used in endurance racing, a good brideport should last sometime with proper care, but don't expect to rev this thing to 10k daily and only change the oil every 8ooo km's.. It will need more attention than that..Maxt

[CrAzY_PLaYa]

Originally posted by Initial-D-Nerd
Ok, thanks a bunch guys, i think im goin N/A because i can easily obtain a 300bhp 13b that was tuned by racingbeat performance. I think that it was a lucky find and i can get a good deal for it. So all i need now is a 2nd Gen GXL with a mint body. do you people think that i would be able to purchase one for under $5000 canadian?

Thx, Laters

I have one its in mint condition has 170*** kms..pm me for more info

[persid]

Well, to tell you the truth, I was only going by what I've heard, so Initial-D-Nerd read Maxt's post, forget mine...he seems to know his stuff better :) Anyways, I apologize for the misinformation.

It's not that I wouldn't drive a 300hp n/a...hell, I'd trade my 140hp one for it any day :) But I still think with that amount of power, a T2 would really be a better choice. But then again, I guess there would be nothing sweeter than smoking those stuck up T2 owners with your petty n/a :D

How much power can an n/a tranny safely hold?

[rx7_turbo2]

I see SinisterProbeGt's post isnt here anymore ;)

Let me give you a break down of a conversation I had about his old car.

Him: "Ya it's got a massive bridegeport"
Me: Cool so it barely idles then hey?
Him: "Yup barely idles"

Then I went over to see it, it idled as smooth as I've ever seen one, purred like a kitten. Anyone who knows anything about these motors could tell it was completely stock other than some stickers. Oh and I think it had a NOS bottle that never got hooked up, but if you ask him he was running NOS.

Anyways back to the topic at hand. 300hp out of an n/a is possible. Two things however, how confident are you that the motor actually came from Racingbeat? And that it actually makes that power, And remember a motor that makes 300hp will not put all of that to the wheels, so is the 300hp number what you think it will make at the wheels? Or the motor? You will also have to worry about a clutch, and all the fuel issues. There is alot to think about with this motor, but if you get it together fuck more power to you, I would not be ashamed one bit to see a ported n/a spank my T2.

[StraightSix]

300hp is totally possible out of a bridgeported n/a, but that would be a fairly radical engine.

Streetable is a matter of tolerance, there are quite few street driven bridgeports and even peripheral ports in Australia.

J

[Chris Ng]

Pfffft... I'm getting old eh???

Show me a n/a 13b running around the city that is putting down 300rwhp and is a daily driver and I will buy your next months stock of viagra....

[rx7_turbo2]

Originally posted by Chris Ng
Pfffft... I'm getting old eh???

Show me a n/a 13b running around the city that is putting down 300rwhp and is a daily driver and I will buy your next months stock of viagra....

Well not in this city, but we're kind of a small fish bowl when it comes to fast cars. I'm sure in other cities in the states and Japan there are a few. Instead of Viagra how about a months supply of Pho? I don't see why a 300hp n/a is out of the question, it wouldnt be the most comfortable vehicle to drive for most people but it is possible.

[Initial-D-Nerd]

k, thanks a bunch Maxt, persid, and all of you helping me out, i know for a fact that it is from racingbeat and it is running 300BHP (doesnt BHP mean flywheel hp? :dunno: ) The engine was supose to be going into a Royale sports racer, but they had some trouble hooking the Hewland tranny up to it due to ground clearance... i realize that i wont be getting 300hp to the wheels, but at least it will be over the power of a mild Turbo II.
Again, thanks a bunch guys
(keep posting some of those mad RX-7 pictures :thumbsup: )

[persid]

Well, whenever you get it done, I want a ride :)

[Maxt]

Here is a video of a 300 rwhp n/a FD on the dyno. sounds lovely....
http://a-ds.serveftp.net/a-rf/video/021.wmv

enjoy...Max

[soloracer]

I don't know Max....kind of sounds like my snowmobile. ;) There is a bridgeported 13B that was supposed to make around 260-280 flywheel horsepower in a tube frame 1st gen RX7 that was raced on the road course here in Calgary. That car is now for sale - although I don't know if the engine comes with it. The guy who owns it is a driving instructor and has been racing RX7's since the late 70's. Rumour is he is building a tube frame 3rd gen.