Converting from GXL to TII
05-23-05, 10:54 AM
#51
Senior Member
I am in the middle of doing this same project. I just had the car repainted so I went for a swap instead of a trade to a Turbo II. The easiest way by far is to find a donor TII. I found one for a grand. Wasn't running right because someone had swapped in a different motor and spliced in a cut wiring harness. They only used tape on the wires. So if you search, you can find a similar deal.
05-23-05, 01:09 PM
#52
Passing life by
Sigh... SEARCH!!
no. How do you think you can prevent exhoust from flowing through it? If you have an electric one it will adjust the silinoid for you and lock acess to the waste gate as much as it can. You still get creep you still get boost.
no. As well I awnserd this queshtion on page 2
They are stacked non replaceable u-joints and I doubt they will ever fail under the amount of stress they are subjected to. The easiest solution is www.mazdatrix.com buy there TII to NA rear diff swap drive shaft.
If I do decide to turbo my car, I can buy a boost controller to turn the turbo off and save the engine, right?
Also, is it possible to hook a turbo driveshaft up to an NA rear end and transmission?
I figure once the U-joints go bad on mine, I'll put a turbo driveshaft in there to get ready for the swap and maybe put in the turbo rear end and axles.
Last edited by iceblue; 05-23-05 at 01:16 PM.
05-25-05, 10:47 AM
#53
No rotary, no problems?
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I guess I don't mean turn it off all the way, maybe more like only run 2 or so PSI. Will the drive shaft hook up to the NA transmission? Maybe I could just get the rear end, axles, and driveshaft at one time and go from there? The U-joints on mine are no where near bad yet, so maybe it'll be just a fun project and a little extra insurance.
05-25-05, 12:42 PM
#54
Originally Posted by Ice_Wolf
I guess I don't mean turn it off all the way, maybe more like only run 2 or so PSI
Either way, how much boost your turbo'd NA will make in 'stock' trim depends on a lot of factors. The flow characteristics of your turbo, intake, exhaust etc., and the ability of your wastegate to control that will determine your 'base' boost pressure.
All a boost controller allows you to do is raise boost above that base and improve your boost response.
With an aftermarket wastegate, you have more control as you can change springs which will allow you to set the base boost level of your car. There may even be a 2 psi spring
05-25-05, 05:58 PM
#55
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whats up with you people?
i thought you bought the RX-7 b/c it was a rotary and they are unique but then you go ahead and throw small block 350's and stang engines under the hood?
thats just wrong but if you are going to do it anyways, make sure its a CORVETTE engine!!
N O P I S T O N S ! ! !
i thought you bought the RX-7 b/c it was a rotary and they are unique but then you go ahead and throw small block 350's and stang engines under the hood?
thats just wrong but if you are going to do it anyways, make sure its a CORVETTE engine!!
N O P I S T O N S ! ! !
05-28-05, 12:43 AM
#58
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alright... i am also doing the t2 swap in my n/a. first off it would probably be easier to find a t2 parts car that way you have everything you need and then you can part out the rest. i found one for 500 bucks but then later found out the rear housing had no compression and was missing 2 apex seals. anyways i made all my money back from parting out the rest of the car. I am doing a rebuild and having the motor ported. I am also uprading everything else while i am at it too might as well. trust me it will be well worth it in the long run than to just swap in an lt1 you will be able to look at it at the end of the day and be like wow i built this....
05-28-05, 12:13 PM
#59
Originally Posted by BLKTOPTRVL
I've never undertood the point. If it were a convertible, I could see it, but I would think it would be far easier to sell the N/A and buy a turbo car. There is nothing to be gained other than you can say you did it.
So, what is it that any of you see as the benefit to this swap (vs. just buying a turbo car?)
So, what is it that any of you see as the benefit to this swap (vs. just buying a turbo car?)
05-30-05, 11:11 PM
#60
No rotary, no problems?
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You know how hard it is to find a turbo car in great shape for a good price? My 87 GXL I just bought has 79k miles on it, no rust, near perfect paint, leather interior, and it runs perfect. I got it for 2500 bucks. You find me a turbo car in the same shape for under 3500.
I always liked the idea for the LT-1 because it will get you into the high 12's stock. But the thing is, I don't have the money for that. I'm thinking I'm gonig to just build up my NA instead of turboing it because I then I'll have the same daily driver car that I need and I'll still have all the reliability of the NA engine. The thing is, I didn't plan on running 2 PSI all the time, that was just when I was using the car to get to go grocery store and didn't need 10 pounds of boost. I would run low boost to help save the engine and not put as much strain on it. I guess my next question is, is it gonna be easy to beef up my NA to turbo specs?
I always liked the idea for the LT-1 because it will get you into the high 12's stock. But the thing is, I don't have the money for that. I'm thinking I'm gonig to just build up my NA instead of turboing it because I then I'll have the same daily driver car that I need and I'll still have all the reliability of the NA engine. The thing is, I didn't plan on running 2 PSI all the time, that was just when I was using the car to get to go grocery store and didn't need 10 pounds of boost. I would run low boost to help save the engine and not put as much strain on it. I guess my next question is, is it gonna be easy to beef up my NA to turbo specs?
05-31-05, 01:25 AM
#61
Turbo specs? Basic bolt ons and **** can get you started. But eventually you may have to use the bottle (http://www.1300cc.com/howto/how2/NOS.htm) or rebuild the engine with a port. I'm going with both and am shotting for 13's. NA's are also easier to get certain parts for and you won't have to scrounge to find a turbo parts car or the actual parts. Search for a thread named "How to build a beefy NA".
How close are you to the border of MN?
How close are you to the border of MN?
05-31-05, 09:13 PM
#62
No rotary, no problems?
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I'm about 3 or 4 hours I would say from the border. I live about 20 minutes away from Dubuque, if you know where that is at all. I'm definitely going to be building up the NA mostly because I can keep my reliability of the NA, not to mention finding a decent turbo parts car around here would be hell and I don't have the money laying around that I would need to rebuild the turbo engine once I got it. And if I turbo'ed it, it would be the daily driver car that I need. If I could get my car into the low 14's, I would be incredibly happy. That would be all the power I'd ever need for a daily driven car. I'm sure once I'm out of college and got the money built up I'll turbo it and by then have another car to drive instead. Thanks for the help guys.
05-31-05, 09:29 PM
#63
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I have some similar questions, i kept trying to start a new thread, but was getting a proxy server error,
i am planning on purchasing a jdm turbo engine, rebuilding it and then putting it in my 91 n/a. Many of the jdm engine importers also supply the transmission with the engine.
1.) is the jdm transmission even useful? Since it came from japan it must be from a right hand drive vehicle, so does that mean it won't work for a left hand drive vehicle. kind of a stupid question, but i searched and didn't find anything.
2.) if it CAN be used, is it even worth the effort, mainly is it going to be a piece of ****. I don't have any illusions about the motor itself, I am planning a rebuild for that, but wasn't sure best course of action for the tranny. am i better off getting a USDM turboII tranny?
side question, again i have searched and heard various arguments regarding dealing with the wiring harness. which is the least stressful road to go on the conversion. JDM harness, modifying my stock n/a harness, or getting a USDM turbo II harness and trying to get that to work?
i am planning on purchasing a jdm turbo engine, rebuilding it and then putting it in my 91 n/a. Many of the jdm engine importers also supply the transmission with the engine.
1.) is the jdm transmission even useful? Since it came from japan it must be from a right hand drive vehicle, so does that mean it won't work for a left hand drive vehicle. kind of a stupid question, but i searched and didn't find anything.
2.) if it CAN be used, is it even worth the effort, mainly is it going to be a piece of ****. I don't have any illusions about the motor itself, I am planning a rebuild for that, but wasn't sure best course of action for the tranny. am i better off getting a USDM turboII tranny?
side question, again i have searched and heard various arguments regarding dealing with the wiring harness. which is the least stressful road to go on the conversion. JDM harness, modifying my stock n/a harness, or getting a USDM turbo II harness and trying to get that to work?
06-09-05, 04:10 PM
#64
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Well, I've been thinking lately about what exactlty I wanna do with my 87 GXL and I've decided I would like to keep it mostly stock, and only using parts that came on the 2nd Gen RX-7's, like such things as the BBS wheels, the aero mirriors, etc. So I'm trying to come up with a list of things that I'd like to put on my car that it never came with.
I've already got the BBS wheels, so I won't be needing them. Also, for some reason, my mirrors and side mouldings are colored to match the car too. I've also got leather interior with the adjustable leather driver's seat.
Is there any place that shows pictures of the different styles of rims that came on the RX-7 and also the different spoilers and aero kits? And how do I tell if my car has the silent pack insulation? Where were the mounting locations for the 6 and 8 speaker stereo system? Where is the anti-turbulence panel on the vert?
So here's the list:
The power locks (for some reason, my car never came with it)
The illuminated driver's door lock (for some reason, my car never came with this either)
Another leather adjustable leather driver's seat for the passenger side (if possible)
Put in the manual steering rack that optionally came on some of the turbo models
The aero kit from the S5 (front bumper piece, side skirts)
Turbo hood
Aero mirrors
Black leather interior
Possibly a different spoiler
Sport tuned suspension from the turbo instead of the AAS
Vented rear disc brakes
Fog lights
Tinted glass
8 speaker system from vert
anti-theft system
leather shift **** and e-brake handle
momo leather steering wheel
4 piston calipers
I think that's the whole list of things that came on the RX-7's that I wanted to get, but I'm not sure if my car has some of these parts already on it. Could you guys help me out?
I've already got the BBS wheels, so I won't be needing them. Also, for some reason, my mirrors and side mouldings are colored to match the car too. I've also got leather interior with the adjustable leather driver's seat.
Is there any place that shows pictures of the different styles of rims that came on the RX-7 and also the different spoilers and aero kits? And how do I tell if my car has the silent pack insulation? Where were the mounting locations for the 6 and 8 speaker stereo system? Where is the anti-turbulence panel on the vert?
So here's the list:
The power locks (for some reason, my car never came with it)
The illuminated driver's door lock (for some reason, my car never came with this either)
Another leather adjustable leather driver's seat for the passenger side (if possible)
Put in the manual steering rack that optionally came on some of the turbo models
The aero kit from the S5 (front bumper piece, side skirts)
Turbo hood
Aero mirrors
Black leather interior
Possibly a different spoiler
Sport tuned suspension from the turbo instead of the AAS
Vented rear disc brakes
Fog lights
Tinted glass
8 speaker system from vert
anti-theft system
leather shift **** and e-brake handle
momo leather steering wheel
4 piston calipers
I think that's the whole list of things that came on the RX-7's that I wanted to get, but I'm not sure if my car has some of these parts already on it. Could you guys help me out?
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