02-01-2009, 03:07 PM
[quote name='flash' date='Jan 23 2009, 12:22 AM' post='66031']
no, it wasn't the project i have been contemplating - no, it isn't something that will ever be available as a kit
jeff bought tony's car - it had the beginnings of a roots system on it - never ran right - jeff dumped a TON of dough into it trying to get it to run right
then he brought it over to my place - i poked around and immediately found a few very obvious things that were just plain dumb - in his desperate outreach to get the car sorted out, he had somebody (who shall remain nameless) tell him he needed and then sell him an intercooler, and they then proceeded to stick it in the worst place they could, right in front of the radiator, but 6 inches away - this caused a pressure issue between the two, and worse only allowed hot post intercooler air to get to the radiator - bottom line, the car thought it was 110 outside when it was only 60
No need to keep us nameless, Flash. Four threads down from this I replied about all the things going on with Jeffs car when he decided to chime in.....so anyone can dig it up in 30 seconds. First off the intercooler is not 6" away from the radiator. The core is 3.5" thick and you can clearly see from your picture that what you are saying is not correct. Second, we didnt install it with the intercooler smashed up against the horns. We would have not put that much force on it to dent the intercooler when istalling it. I can also tell by the lower mounting tabs that the intercooler/front bumper was hit up against something after it had been given back to Jeff.Please dont try to make it out like we are a buch of morons that dont know whay they are doing.We have been in tons of magazines,built numerous 1000+WHP small displacement engines and have been in business for well over 10 years. Has anyone else on this board done more for the good old watercooled Porsche community in general, or accomplished anything remotely close to what SFR has in the past 10 years? I think not.
I find it kind of funny that over 30+ other 968's on the road have this intercooler set-up, most of them tracked and there is no coolant or air temp issues.This is why we did what we did.It was not ideal but for us it was better then cutting his front bumper support up like you did to fit the intercooler. We could not accept this sort of liability,I hope you can udnerstand and appreciate that.What happened if he is in a crash with no support bar.You can ask Greddy that after they got sued for millions when someone crashed and died in a car with one of their turbos kits that requred cutting the front aluminum bumper brace. Now if you are going to do somethng about it then that would be fine.But for us,that would still not be fine when the lawyers got through with us.LOL. From the looks of it, you cant reinforce that aluminum bumper support enough to protect Jeff in case of a crash.You would have to make a new one out of some tubular steel.
i yanked that thing out of there and figured out a way to stick a 951 intercooler in there, but behind the bumper, and clear of the radiator area
before i started pre intercooler temps were 180 plus and nearly 150 after the intercooler
afterward it is 169 and 106 - not a bad improvement at all
How can the post supercharger(before air even enters the intercooler) temps be lower after you install a new intercooler? LOL.They would be the same unless you changed the blower. The blower is still pumping out the same amount of heat regardless of what it blows into.Your testing is flswed so it would mean your results are inaccurate. Get those charge air temps up to 180 with the stock intercooler in there and see what sort of post intercooler temps you are seeing.Then you have an apples to apples comparison.Right now it is just apples to bananas!
I am also interested in what sort of test equipment you are using.Who makes the thermocouple and gauge?If you are using an infared heat gun then that is a completely unfair and unreal test you have done.The stock 944t end tanks are a thick heavy casting with alot of surface area and material and it wil read alot lower then the 5052 .120 wall sheetmetal we use for our end tanks.There is also paint on your stock intercooler which will skew the readings even more.
We have tested the SFR intercooler extensively on the dyno,on the street and on the track and it cools much better then the stock 944t intercooler. We have seen over 25+WHP on some applications on a dyno with no real air movement over the intercooler. I would love to see some of your datalogs with the temp decrease you seen. There is a ton of data about the 944T intercoolers efficiency on the Rennlist from street guys to track junkies.In fact,we have actually seen the complete opposite of what you are saying about the intercooler we used on Jeffs car(which is the same one in our supercharger system and the same one in a customers 531WHP 3.0L 944t).
http://www.youtube.com/watch?v=hbBj8xiWmSg
We have seen charge air temps higher then 250F on the track pre-intercooler with 129F post intercooler temps.The roots blower on Jeffs car is making more then 169F at 6-8 psi. Probably in the range of 225-275F especially on a pretty inefficient Eaton M90 blower like Jeff has.So you are saying that our intercoler does not work as well as the factory one with no real data to back it up? I am a bit suprised by this. As a matter of fact I amazed since we have a car that makes more then double what Jeffs car is doing and it has the intercooler, in front of the radiator, 531WHP and he lives in Az where it is much hotter.How did we do that and poor Jeffs car is a overheating nightmare. Hmmmm.......maybe something else is gong on.
water temp gauge used to read 10 o'clock when you were on it, and 9-9:15 cruising - now reads 9:30 and 8:30 respectively
Also, the car now hits max boost, where it was only hitting about 80% before - seems to run harder too
10 to 9:30 ,9.15 to 8:45? Are you serious? This is how you are judging temperatures on a gauge that is already pretty inaccurate????? I would have expected you to use a real mechanical temp gauge if you are going to be"testing". We monitored the colant temp through the Motronic software and the coolant temps on Jeffs car never went above 210F on the dyno,in the summer with very little airflow over the radiator.
How did you determined what the max boost should be on 91 octane?
and i'm not done by a long shot - haven't even begun to fix all the other stuff that all those other people did
I guess some of the other people did what they did because one of their friends and I beleive... your friend called them and said help this guy out.I sold him my 968 and it needs a little help.He is a good guy, take car of him.Do what you can and take it easy on him and make it relatively quick too.So I did just that.When Jeffs care came in,it was running a good amount of boost,tuned for a water inejction system that was bascially not working, pinging and close to blowing up.If I remember correctly it was making about 205WHP which is what a stock 968 makes!!!!!!!None of this has ever been mentioned.I wonder why?When the 968 left,it was making 270 ft/lb and 270WHP.It was not pinging,overheating or anyting else.I would not have let a car leave like that.This was abut 2-3 years ago.Jeff had called me sometime after that saying his car was running hot and we talked about it.I suggested getting a maual coolant temp gauge to see what the actual temp were since the gauge can be inaccurate and your dont really know the exact temp you are at.From there we could find a solution but we never heard back from him.
why am i messing with this? well, besides the sickness that just won't let me leave things alone, if i can get this working, it shines a small (repeat small) light on the possibility of a package down the road
If you cannot re-flash the ECU then your are destined for not such a great outcome,IMHO. Using an adjustable fuel pressure regulator is fine but ignition timing will be your worse enemy with this car.It is not about being too rich.We had to tune it rich to prevent it from detnation,even pulling timing out wasnt enough.If you havent tuned a fuel injected, hi-compression engine, a roots blower, on 91 octane before, then you are in for a real teat. How is it going to run when the A/C is on and 110F outside? Right now it is nice and cool in California.But it wont be in a few months.
Is it going to ping? If it does there is nothing you can do about it unless you run a stand alone, reflash the ECU or hopefully put some of the fuel pressure back into it.When the car was brought to us initially,it was pinging badly and right on the verge of self destruction.For the money we got paid,we did the best we could to try and get this car sorted out to some extent.It would have taken alot more money to really get this thing in tip top shape but unfortunately,that was not an option.I also think there is something to be said simply because this car is STILL RUNNING and has not blown up and it has been about 3 years since it left here.Taking it on as a project for your friend like you are doing is one thing.I applaud you for that but runnng a business to pay the bills is something entirely different.Unfortunately,we had to approach this from a business standpoint and do what we could to stay within a budget.
Finally, I would be willing to share some of the data we had on Jeffs car when it was being tuned.But in return I would like to get that sponsership information I have been waiting for over 6 months for.............Can someone please get on that for me!!! Actually, forget about it. I see how it is here now. You protect us by saying they will remain nameless.Thanks but no thanks. We dot need to remain nameless. It is all out on the table now. I will be awaiting your rebuttal. Thank you and good luck with your new project.
Tim
no, it wasn't the project i have been contemplating - no, it isn't something that will ever be available as a kit
jeff bought tony's car - it had the beginnings of a roots system on it - never ran right - jeff dumped a TON of dough into it trying to get it to run right
then he brought it over to my place - i poked around and immediately found a few very obvious things that were just plain dumb - in his desperate outreach to get the car sorted out, he had somebody (who shall remain nameless) tell him he needed and then sell him an intercooler, and they then proceeded to stick it in the worst place they could, right in front of the radiator, but 6 inches away - this caused a pressure issue between the two, and worse only allowed hot post intercooler air to get to the radiator - bottom line, the car thought it was 110 outside when it was only 60
No need to keep us nameless, Flash. Four threads down from this I replied about all the things going on with Jeffs car when he decided to chime in.....so anyone can dig it up in 30 seconds. First off the intercooler is not 6" away from the radiator. The core is 3.5" thick and you can clearly see from your picture that what you are saying is not correct. Second, we didnt install it with the intercooler smashed up against the horns. We would have not put that much force on it to dent the intercooler when istalling it. I can also tell by the lower mounting tabs that the intercooler/front bumper was hit up against something after it had been given back to Jeff.Please dont try to make it out like we are a buch of morons that dont know whay they are doing.We have been in tons of magazines,built numerous 1000+WHP small displacement engines and have been in business for well over 10 years. Has anyone else on this board done more for the good old watercooled Porsche community in general, or accomplished anything remotely close to what SFR has in the past 10 years? I think not.
I find it kind of funny that over 30+ other 968's on the road have this intercooler set-up, most of them tracked and there is no coolant or air temp issues.This is why we did what we did.It was not ideal but for us it was better then cutting his front bumper support up like you did to fit the intercooler. We could not accept this sort of liability,I hope you can udnerstand and appreciate that.What happened if he is in a crash with no support bar.You can ask Greddy that after they got sued for millions when someone crashed and died in a car with one of their turbos kits that requred cutting the front aluminum bumper brace. Now if you are going to do somethng about it then that would be fine.But for us,that would still not be fine when the lawyers got through with us.LOL. From the looks of it, you cant reinforce that aluminum bumper support enough to protect Jeff in case of a crash.You would have to make a new one out of some tubular steel.
i yanked that thing out of there and figured out a way to stick a 951 intercooler in there, but behind the bumper, and clear of the radiator area
before i started pre intercooler temps were 180 plus and nearly 150 after the intercooler
afterward it is 169 and 106 - not a bad improvement at all
How can the post supercharger(before air even enters the intercooler) temps be lower after you install a new intercooler? LOL.They would be the same unless you changed the blower. The blower is still pumping out the same amount of heat regardless of what it blows into.Your testing is flswed so it would mean your results are inaccurate. Get those charge air temps up to 180 with the stock intercooler in there and see what sort of post intercooler temps you are seeing.Then you have an apples to apples comparison.Right now it is just apples to bananas!
I am also interested in what sort of test equipment you are using.Who makes the thermocouple and gauge?If you are using an infared heat gun then that is a completely unfair and unreal test you have done.The stock 944t end tanks are a thick heavy casting with alot of surface area and material and it wil read alot lower then the 5052 .120 wall sheetmetal we use for our end tanks.There is also paint on your stock intercooler which will skew the readings even more.
We have tested the SFR intercooler extensively on the dyno,on the street and on the track and it cools much better then the stock 944t intercooler. We have seen over 25+WHP on some applications on a dyno with no real air movement over the intercooler. I would love to see some of your datalogs with the temp decrease you seen. There is a ton of data about the 944T intercoolers efficiency on the Rennlist from street guys to track junkies.In fact,we have actually seen the complete opposite of what you are saying about the intercooler we used on Jeffs car(which is the same one in our supercharger system and the same one in a customers 531WHP 3.0L 944t).
http://www.youtube.com/watch?v=hbBj8xiWmSg
We have seen charge air temps higher then 250F on the track pre-intercooler with 129F post intercooler temps.The roots blower on Jeffs car is making more then 169F at 6-8 psi. Probably in the range of 225-275F especially on a pretty inefficient Eaton M90 blower like Jeff has.So you are saying that our intercoler does not work as well as the factory one with no real data to back it up? I am a bit suprised by this. As a matter of fact I amazed since we have a car that makes more then double what Jeffs car is doing and it has the intercooler, in front of the radiator, 531WHP and he lives in Az where it is much hotter.How did we do that and poor Jeffs car is a overheating nightmare. Hmmmm.......maybe something else is gong on.
water temp gauge used to read 10 o'clock when you were on it, and 9-9:15 cruising - now reads 9:30 and 8:30 respectively
Also, the car now hits max boost, where it was only hitting about 80% before - seems to run harder too
10 to 9:30 ,9.15 to 8:45? Are you serious? This is how you are judging temperatures on a gauge that is already pretty inaccurate????? I would have expected you to use a real mechanical temp gauge if you are going to be"testing". We monitored the colant temp through the Motronic software and the coolant temps on Jeffs car never went above 210F on the dyno,in the summer with very little airflow over the radiator.
How did you determined what the max boost should be on 91 octane?
and i'm not done by a long shot - haven't even begun to fix all the other stuff that all those other people did
I guess some of the other people did what they did because one of their friends and I beleive... your friend called them and said help this guy out.I sold him my 968 and it needs a little help.He is a good guy, take car of him.Do what you can and take it easy on him and make it relatively quick too.So I did just that.When Jeffs care came in,it was running a good amount of boost,tuned for a water inejction system that was bascially not working, pinging and close to blowing up.If I remember correctly it was making about 205WHP which is what a stock 968 makes!!!!!!!None of this has ever been mentioned.I wonder why?When the 968 left,it was making 270 ft/lb and 270WHP.It was not pinging,overheating or anyting else.I would not have let a car leave like that.This was abut 2-3 years ago.Jeff had called me sometime after that saying his car was running hot and we talked about it.I suggested getting a maual coolant temp gauge to see what the actual temp were since the gauge can be inaccurate and your dont really know the exact temp you are at.From there we could find a solution but we never heard back from him.
why am i messing with this? well, besides the sickness that just won't let me leave things alone, if i can get this working, it shines a small (repeat small) light on the possibility of a package down the road
If you cannot re-flash the ECU then your are destined for not such a great outcome,IMHO. Using an adjustable fuel pressure regulator is fine but ignition timing will be your worse enemy with this car.It is not about being too rich.We had to tune it rich to prevent it from detnation,even pulling timing out wasnt enough.If you havent tuned a fuel injected, hi-compression engine, a roots blower, on 91 octane before, then you are in for a real teat. How is it going to run when the A/C is on and 110F outside? Right now it is nice and cool in California.But it wont be in a few months.
Is it going to ping? If it does there is nothing you can do about it unless you run a stand alone, reflash the ECU or hopefully put some of the fuel pressure back into it.When the car was brought to us initially,it was pinging badly and right on the verge of self destruction.For the money we got paid,we did the best we could to try and get this car sorted out to some extent.It would have taken alot more money to really get this thing in tip top shape but unfortunately,that was not an option.I also think there is something to be said simply because this car is STILL RUNNING and has not blown up and it has been about 3 years since it left here.Taking it on as a project for your friend like you are doing is one thing.I applaud you for that but runnng a business to pay the bills is something entirely different.Unfortunately,we had to approach this from a business standpoint and do what we could to stay within a budget.
Finally, I would be willing to share some of the data we had on Jeffs car when it was being tuned.But in return I would like to get that sponsership information I have been waiting for over 6 months for.............Can someone please get on that for me!!! Actually, forget about it. I see how it is here now. You protect us by saying they will remain nameless.Thanks but no thanks. We dot need to remain nameless. It is all out on the table now. I will be awaiting your rebuttal. Thank you and good luck with your new project.
Tim
(This post was last modified: 02-01-2009, 05:15 PM by SpeedForceRacing.)

