? Heavy Modding a 993 & Experience with Turbo Kraft?
#31
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The pain and suffering is getting everything (ECU tuning, programming) to work and fabbing all the different items that need fabbing. I didn't say it was impossible but that it won't be easy. You said yourself, the only reason it wasn't terribly expensive was because you did most of the work yourself. Just out of curiosity, do you know how many hours it took to get it all working?
Also, when he was talking about turboing a 993, I automatically thought twin turbo, as that is what the 993 is in its turbo form. The first issue I can think about right off the bat is that he will need a turbo deck lid for the intercooler and I am not even sure the narrower fenders can support the ducting required for it.
As for the numbers, those are great numbers for single turbo 993 at only 6psi. Better than stock 993tt by a bit if I'm not mistaken. It is risky to go higher though without different pistons since stock compression is so high. Again, I was not trying to convince him to get a TT, just asking that he not rule it out and explained the possibilities were he to go that way.
Also, when he was talking about turboing a 993, I automatically thought twin turbo, as that is what the 993 is in its turbo form. The first issue I can think about right off the bat is that he will need a turbo deck lid for the intercooler and I am not even sure the narrower fenders can support the ducting required for it.
As for the numbers, those are great numbers for single turbo 993 at only 6psi. Better than stock 993tt by a bit if I'm not mistaken. It is risky to go higher though without different pistons since stock compression is so high. Again, I was not trying to convince him to get a TT, just asking that he not rule it out and explained the possibilities were he to go that way.
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For starters I still have the M3 nd need to unload it to make my numbers work. In any case, what peaked my interest in this project was the turbo charging of the E46 M3 with Horsepower Freaks and then thought given the 993 has the same compression I wondered if anyone has done it. To my surprise the answer was "yes". I found the guy above with his single turbo (beautiful setup), and then twin turbo setups (intercooler and not).
Please see my post above where I noted the level I and level II - intercooler and not. This actually puts me in the same range as what I was going to spend on the M3 - mid $20k to upper $20k range.
I figured overall it's a breakeven proposition for me considering what I had in the M3, what I can get for it, and what it'll run me to get essentially what I want. I'm going to research the AWD conversion to RWD. I'm essentially in my due diligence stage but committed to selling the M3 given I removed everything I had in it, minus the suspension (soon on that though). I'm also interested in the RS conversion which is know is an entirely different proposition. I do know I want a 993 and have that as my "toy" to replace the M3.
Please see my post above where I noted the level I and level II - intercooler and not. This actually puts me in the same range as what I was going to spend on the M3 - mid $20k to upper $20k range.
I figured overall it's a breakeven proposition for me considering what I had in the M3, what I can get for it, and what it'll run me to get essentially what I want. I'm going to research the AWD conversion to RWD. I'm essentially in my due diligence stage but committed to selling the M3 given I removed everything I had in it, minus the suspension (soon on that though). I'm also interested in the RS conversion which is know is an entirely different proposition. I do know I want a 993 and have that as my "toy" to replace the M3.
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Brett,
I sincerely appreciate the offer and will take you up on that as I get close. As I said, sourcing a '95 is not a problem. I'll will most likely begin accumulating parts before I even source the car (RS body, wheels, suspension, etc.). I'm not 100% on the NA v. FI, but I am 100% on the project. I'm weighing things out but really want the NB.
You don't need me telling you that you've got a VERY SICK machine, but suffice it to say I'm very inspired. I'll likely take you up on your offer in the near future. Thanks!
I sincerely appreciate the offer and will take you up on that as I get close. As I said, sourcing a '95 is not a problem. I'll will most likely begin accumulating parts before I even source the car (RS body, wheels, suspension, etc.). I'm not 100% on the NA v. FI, but I am 100% on the project. I'm weighing things out but really want the NB.
You don't need me telling you that you've got a VERY SICK machine, but suffice it to say I'm very inspired. I'll likely take you up on your offer in the near future. Thanks!
I am the individual that gonz911 referred to with the 1995 NA with a custom turbo kit on it. What pain and suffering exactly are you referring to? This car is more fun at this power level then I would have ever imagined. The numbers in my signature were achieved at 6 psi of boost on the stock engine internals. The car has performed flawlessly at this level since I first built it over 1.5 years ago.
Having to pay for a Porsche shop build any modded 993 (NA or TT) will be cost prohibitive. My setup was affordable because I was able to do all of the work myself. This includes the fab work, wiring, and tuning of the aftermarket ECU. As everybody knows, without a properly tuned ECU the drivability and reliability will be horrible. So whatever you do, DO NOT skimp in that area. I am always thinking about what to do with the car next, unfortunately my work schedule has kept me from doing much with the car lately save for driving it and enjoying it. Here are a few pictures from just before the snow hit:
http://www.6speedonline.com/forums/a...0&d=1197476856
http://www.6speedonline.com/forums/a...1&d=1197476865
http://www.6speedonline.com/forums/a...3&d=1197477066
http://www.6speedonline.com/forums/a...4&d=1197477073
http://www.6speedonline.com/forums/a...5&d=1197477080
My setup is built to produce much more power then I am currently making. So I would still like to build the motor, turn the boost up a bit, and make the power numbers that this setup was built to support. The nice thing about larger single turbos is how easily they make power per lb of boost.
gonz911, what is your ultimate horsepower goal for the car? A 1995 is the right place to start for a setup like this since it uses the 55 pin ECU (easy to make a jumper harness), is not OBDII, and has the non-vram intake mani. I may be willing to build another like mine, or maybe even unload it for the right price if I find something else that peaks my interest. Shoot me a PM and we can talk.![Cool](https://rennlist.com/forums/images/smilies/cool.gif)
Having to pay for a Porsche shop build any modded 993 (NA or TT) will be cost prohibitive. My setup was affordable because I was able to do all of the work myself. This includes the fab work, wiring, and tuning of the aftermarket ECU. As everybody knows, without a properly tuned ECU the drivability and reliability will be horrible. So whatever you do, DO NOT skimp in that area. I am always thinking about what to do with the car next, unfortunately my work schedule has kept me from doing much with the car lately save for driving it and enjoying it. Here are a few pictures from just before the snow hit:
http://www.6speedonline.com/forums/a...0&d=1197476856
http://www.6speedonline.com/forums/a...1&d=1197476865
http://www.6speedonline.com/forums/a...3&d=1197477066
http://www.6speedonline.com/forums/a...4&d=1197477073
http://www.6speedonline.com/forums/a...5&d=1197477080
My setup is built to produce much more power then I am currently making. So I would still like to build the motor, turn the boost up a bit, and make the power numbers that this setup was built to support. The nice thing about larger single turbos is how easily they make power per lb of boost.
gonz911, what is your ultimate horsepower goal for the car? A 1995 is the right place to start for a setup like this since it uses the 55 pin ECU (easy to make a jumper harness), is not OBDII, and has the non-vram intake mani. I may be willing to build another like mine, or maybe even unload it for the right price if I find something else that peaks my interest. Shoot me a PM and we can talk.
![Cool](https://rennlist.com/forums/images/smilies/cool.gif)
#35
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The pain and suffering is getting everything (ECU tuning, programming) to work and fabbing all the different items that need fabbing. I didn't say it was impossible but that it won't be easy. You said yourself, the only reason it wasn't terribly expensive was because you did most of the work yourself. Just out of curiosity, do you know how many hours it took to get it all working?
Also, when he was talking about turboing a 993, I automatically thought twin turbo, as that is what the 993 is in its turbo form. The first issue I can think about right off the bat is that he will need a turbo deck lid for the intercooler and I am not even sure the narrower fenders can support the ducting required for it.
As for the numbers, those are great numbers for single turbo 993 at only 6psi. Better than stock 993tt by a bit if I'm not mistaken. It is risky to go higher though without different pistons since stock compression is so high. Again, I was not trying to convince him to get a TT, just asking that he not rule it out and explained the possibilities were he to go that way.
Also, when he was talking about turboing a 993, I automatically thought twin turbo, as that is what the 993 is in its turbo form. The first issue I can think about right off the bat is that he will need a turbo deck lid for the intercooler and I am not even sure the narrower fenders can support the ducting required for it.
As for the numbers, those are great numbers for single turbo 993 at only 6psi. Better than stock 993tt by a bit if I'm not mistaken. It is risky to go higher though without different pistons since stock compression is so high. Again, I was not trying to convince him to get a TT, just asking that he not rule it out and explained the possibilities were he to go that way.
![ooops](https://rennlist.com/forums/graemlins/icon501.gif)
You are correct that I would not run much more then this on the stock internals, to take it further would require some lower comp pistons among other things. And keeping charge air temps under control is key to reliability for this type of setup, which is why I run such a nice big intercooler. Fortunately all of the main supporting parts are already there (turbo/IC/ECU/clutch) just itching to run some more boost when the internals are ready for it.
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#37
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Well if/when you do decide to tear the engine apart and drop in some different pistons (probably cams too if you go to lower compression pistons) and turn up the boost let us know how it goes. I for one would be very interested to see how a single turbo setup does at higher compression with a 993 platform. I have pulled 500 hp out of 930s so I would think that should be well within reason on a 993 engine.
EDIT: Does at higher *boost*, not higher compression =/
EDIT: Does at higher *boost*, not higher compression =/
Last edited by drew3007; 01-04-2008 at 06:47 PM.
#38
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Why not just save a ton of $$$ and buy this: https://rennlist.com/forums/993-turbo-forum/401148-f-s-1997-porsche-993tt-43-000-00-a.html
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Not really what I'm looking for. I've also been in touch with a Porsche dealer in Chicago as well as Seattle where I travel frequently on business and they've sourced similar high mileage cars. That particular car is a good candidate though for an overhaul no doubt, but very reasonably priced! Thank you for the note though. I'm sure someone will scoop that one before too long.
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A 2wd conversion kit for the 993tt is sold by ViperBob at Vortexmotorsports for not alot of coin, and a very simple mod.
Also, you can't really compare a 500+hp FI E46M3 with a 500+ hp 993tt. The former will produce that power for a few minutes then suffer from significant heat soak. There simply is not enough cooling capacity in the car unless you plumb a hefty water/meth reservoir. The 500+ hp E46 is also going to twist the suspension mount points, crack the subframe with torque, and be woefully inadequate when it comes time to slow down.
A relatively inexpensive path on a 993tt is to stuff Mitsubishi 16G compressor wheels in to the turbos, add a 5 bar fpr, add a serial oil cooler, an electronic boost controller, and then Protomotive software. Should be good for near 550hp of reliable power.
Also, you can't really compare a 500+hp FI E46M3 with a 500+ hp 993tt. The former will produce that power for a few minutes then suffer from significant heat soak. There simply is not enough cooling capacity in the car unless you plumb a hefty water/meth reservoir. The 500+ hp E46 is also going to twist the suspension mount points, crack the subframe with torque, and be woefully inadequate when it comes time to slow down.
A relatively inexpensive path on a 993tt is to stuff Mitsubishi 16G compressor wheels in to the turbos, add a 5 bar fpr, add a serial oil cooler, an electronic boost controller, and then Protomotive software. Should be good for near 550hp of reliable power.
#41
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A 2wd conversion kit for the 993tt is sold by ViperBob at Vortexmotorsports for not alot of coin, and a very simple mod.
Also, you can't really compare a 500+hp FI E46M3 with a 500+ hp 993tt. The former will produce that power for a few minutes then suffer from significant heat soak. There simply is not enough cooling capacity in the car unless you plumb a hefty water/meth reservoir. The 500+ hp E46 is also going to twist the suspension mount points, crack the subframe with torque, and be woefully inadequate when it comes time to slow down.
A relatively inexpensive path on a 993tt is to stuff Mitsubishi 16G compressor wheels in to the turbos, add a 5 bar fpr, add a serial oil cooler, an electronic boost controller, and then Protomotive software. Should be good for near 550hp of reliable power.
Also, you can't really compare a 500+hp FI E46M3 with a 500+ hp 993tt. The former will produce that power for a few minutes then suffer from significant heat soak. There simply is not enough cooling capacity in the car unless you plumb a hefty water/meth reservoir. The 500+ hp E46 is also going to twist the suspension mount points, crack the subframe with torque, and be woefully inadequate when it comes time to slow down.
A relatively inexpensive path on a 993tt is to stuff Mitsubishi 16G compressor wheels in to the turbos, add a 5 bar fpr, add a serial oil cooler, an electronic boost controller, and then Protomotive software. Should be good for near 550hp of reliable power.
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First let me say I didn't go the F/I route with my M3 because I want to mod a 993, but friend let me tell you you're wrong, although the E46 M3 is prone to subframe damage if you race and/or have high hp torque. However, with that being said it's an easy enough fix with a reinforcement kit. Quite frankly, if you go the route of modding the car to high degrees of power, it's the thing to do and not a big deal aside from removing the differential. I know. I had planned on doing it with Turner Motor Sports subframe reinforment kit.
With respect to power, there's not a lot out there short of a similar build to a Protomotive 800 (or something like that) that will compete with the E46 M3 HPF Stg. II Turbo which produces an incredible 671 whp and 500 ft-bs. and runs the 1/4 mile in 11.666 at 129.47 mph (street tires by the way - imagine a set of slicks on that thing). That's QUICK! I'm sure there are other builders (Turbo Kraft makes it available but not for $25K - cost of the HPF Stg. 2). That's all bolt on by the way - stock internals!
Two of my friends here in the Twin Cities just had their cars sent to the shop and returned. Unfortunately they won't be able to run them until it thaws out (if it ever does here), but they're Stg. II which runs meth. at the flip of a key and is insane fast. I didn't want to do it because it's going to be more of the same since they did it. However, HPF developed this for a few other customers prior to theirs and this has not been an issue with the heat soaking, so I don't know where you're getting that from. Again, I agree with the subframe issue which plagues all E46 series cars, but again it can be addressed.
You can check out the specs on the cars here: http://www.horsepowerfreaks.com/pictures/BMW/M3
I'm going to check out this conversion on the AWD to RWD and factor that in. I have to say the 993tt is amongst the best looking 911's ever. The reasons for my interest in the Carrera (NB) is cost and weight/lighter.
Thanks for the advice.![thumbup](https://rennlist.com/forums/graemlins/thumbup.gif)
With respect to power, there's not a lot out there short of a similar build to a Protomotive 800 (or something like that) that will compete with the E46 M3 HPF Stg. II Turbo which produces an incredible 671 whp and 500 ft-bs. and runs the 1/4 mile in 11.666 at 129.47 mph (street tires by the way - imagine a set of slicks on that thing). That's QUICK! I'm sure there are other builders (Turbo Kraft makes it available but not for $25K - cost of the HPF Stg. 2). That's all bolt on by the way - stock internals!
Two of my friends here in the Twin Cities just had their cars sent to the shop and returned. Unfortunately they won't be able to run them until it thaws out (if it ever does here), but they're Stg. II which runs meth. at the flip of a key and is insane fast. I didn't want to do it because it's going to be more of the same since they did it. However, HPF developed this for a few other customers prior to theirs and this has not been an issue with the heat soaking, so I don't know where you're getting that from. Again, I agree with the subframe issue which plagues all E46 series cars, but again it can be addressed.
You can check out the specs on the cars here: http://www.horsepowerfreaks.com/pictures/BMW/M3
I'm going to check out this conversion on the AWD to RWD and factor that in. I have to say the 993tt is amongst the best looking 911's ever. The reasons for my interest in the Carrera (NB) is cost and weight/lighter.
Thanks for the advice.
![thumbup](https://rennlist.com/forums/graemlins/thumbup.gif)
A 2wd conversion kit for the 993tt is sold by ViperBob at Vortexmotorsports for not alot of coin, and a very simple mod.
Also, you can't really compare a 500+hp FI E46M3 with a 500+ hp 993tt. The former will produce that power for a few minutes then suffer from significant heat soak. There simply is not enough cooling capacity in the car unless you plumb a hefty water/meth reservoir. The 500+ hp E46 is also going to twist the suspension mount points, crack the subframe with torque, and be woefully inadequate when it comes time to slow down.
A relatively inexpensive path on a 993tt is to stuff Mitsubishi 16G compressor wheels in to the turbos, add a 5 bar fpr, add a serial oil cooler, an electronic boost controller, and then Protomotive software. Should be good for near 550hp of reliable power.
Also, you can't really compare a 500+hp FI E46M3 with a 500+ hp 993tt. The former will produce that power for a few minutes then suffer from significant heat soak. There simply is not enough cooling capacity in the car unless you plumb a hefty water/meth reservoir. The 500+ hp E46 is also going to twist the suspension mount points, crack the subframe with torque, and be woefully inadequate when it comes time to slow down.
A relatively inexpensive path on a 993tt is to stuff Mitsubishi 16G compressor wheels in to the turbos, add a 5 bar fpr, add a serial oil cooler, an electronic boost controller, and then Protomotive software. Should be good for near 550hp of reliable power.
#43
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Gonz i think your plans for this 993 are fantastic. It would be nice to see something different for a change. Have you cosidered a older single turbo powerplant for a starter motor.
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Check it out: http://turbokraft.com/gallery/Mike
Tell me, what's not to love about this SLEEPER! Check out the videos. SICKNESS!
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Thanks!
I will certainly keep the board updated with any new changes, but I doubt I will be doing much this winter other then admiring it in the garage. I know what this turbo is capable of when allowed to breath in it's efficiency range, so I am looking forward to letting it loose when time permits. Having that extra hp in a 2900 lb car will certainly keep things interesting.
Well if/when you do decide to tear the engine apart and drop in some different pistons (probably cams too if you go to lower compression pistons) and turn up the boost let us know how it goes. I for one would be very interested to see how a single turbo setup does at higher compression with a 993 platform. I have pulled 500 hp out of 930s so I would think that should be well within reason on a 993 engine.
EDIT: Does at higher *boost*, not higher compression =/
EDIT: Does at higher *boost*, not higher compression =/
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