2001 porsche 996 ls1 conversion
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loooool, you beat me to posting the vids !!!!!
( on the first and last vid just fast forward to 1:40 )
i have to say it was a pretty fun weekend
decided to take the thing to the track, just to get a baseline . i still did not connect the front driveshaft so i was not expecting any great numbers.
i was surprised how well the car hooked ; those are pretty old tires in the back and it was rear wheel only with no LSD in the rear . i guess having the weight of the transmission and engine sitting on the rear tires helps
i also found out that the rev limiter was set at 6000 rpm !! so i ended up using that as my shift light
regardless , the car did a not so great sixty foot time of 2.05 , and et of 13.18@108.1 mph i think i can squeeze a 12 second time slip with just changing the rev limiter
but its still a bit away from my target of beating the time this car supposedly did with its original engine ( see the time slip i found in the car when i first got it in the first couple of pages of this thread). funny thing is i don't know which time on the slip was for this car - it could either be a 12.98 et or 12.07 et
anyhow , next weekend the new cd/nav system should be installed , front driveshaft too , and most likely a new tune just to make sure
so far i have the the SRT8 grand cherokee wanting to race me again , as well as a highly modified race evo. i'll try and stirr the local pot and see what other races i can line up
i might just hit the local fourms and start being an *** and see if i get any nibblers
( on the first and last vid just fast forward to 1:40 )
i have to say it was a pretty fun weekend
decided to take the thing to the track, just to get a baseline . i still did not connect the front driveshaft so i was not expecting any great numbers.
i was surprised how well the car hooked ; those are pretty old tires in the back and it was rear wheel only with no LSD in the rear . i guess having the weight of the transmission and engine sitting on the rear tires helps
i also found out that the rev limiter was set at 6000 rpm !! so i ended up using that as my shift light
regardless , the car did a not so great sixty foot time of 2.05 , and et of 13.18@108.1 mph i think i can squeeze a 12 second time slip with just changing the rev limiter
but its still a bit away from my target of beating the time this car supposedly did with its original engine ( see the time slip i found in the car when i first got it in the first couple of pages of this thread). funny thing is i don't know which time on the slip was for this car - it could either be a 12.98 et or 12.07 et
anyhow , next weekend the new cd/nav system should be installed , front driveshaft too , and most likely a new tune just to make sure
so far i have the the SRT8 grand cherokee wanting to race me again , as well as a highly modified race evo. i'll try and stirr the local pot and see what other races i can line up
i might just hit the local fourms and start being an *** and see if i get any nibblers
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not much to report other than that i have installed a JVC head unit, which looks kick *** and i had them do a quick clean and polish of the interior while it was there. ( sorry no pics yet )
i also reinstalled the front driveshaft in preperation for the weekend races .
oddly the car decided to develope a sudden "rpm Rise " , up to 3000 rpm when ideling . it just happened when i was parking the car and it almost felt like a sudden vaccume leak ; so i poped the engine lid and started to look for leaks , but nothing was evident. so i decided to check the vaccume hose on the back of the intake manifold ( booster hose) to see if it split open or had a cut or came loose, and given that i can't reach it easily i had to remove the intake manifold ( a simple 3 hour job!!
) and when i did remove it i found out nothing wrong with it
so i rerouted the booster line to the front of the intake manifold for my sanity and ease of service later on and reinstalled the intake . i then decided i should check the iac sensor , so i swapped it with the one i had on my camaro , which made no difference ..... so i just sat there and scratched my head for a few hours
then i thought , why not just lower the idel screw!!?? to which i did and the idle dropped down immediatly !!!
so apparently the IAC i had in there was stuck in the closed position before , and decided to pop open when i was parking , which would also explain why the car would not respond to changes in idle rpm i made in the tune as well as dying when the ac was turned on at idle.
so to make sure i let it idle and turned the AC on and it bumped the idle as it was supposed to do and did not die
which means i am now even happier than before !!!
so the lesson of the day is " try the easiest , cheapest fixes first " .
on a side note , it appears this swap is getting popular
and i had them do a quick clean and polish of the interior while it was there. ( sorry no pics yet )i also reinstalled the front driveshaft in preperation for the weekend races
.oddly the car decided to develope a sudden "rpm Rise " , up to 3000 rpm when ideling . it just happened when i was parking the car and it almost felt like a sudden vaccume leak ; so i poped the engine lid and started to look for leaks , but nothing was evident. so i decided to check the vaccume hose on the back of the intake manifold ( booster hose) to see if it split open or had a cut or came loose, and given that i can't reach it easily i had to remove the intake manifold ( a simple 3 hour job!!
) and when i did remove it i found out nothing wrong with it so i rerouted the booster line to the front of the intake manifold for my sanity and ease of service later on and reinstalled the intake . i then decided i should check the iac sensor , so i swapped it with the one i had on my camaro , which made no difference ..... so i just sat there and scratched my head for a few hours
then i thought , why not just lower the idel screw!!?? to which i did and the idle dropped down immediatly !!!
so apparently the IAC i had in there was stuck in the closed position before , and decided to pop open when i was parking , which would also explain why the car would not respond to changes in idle rpm i made in the tune as well as dying when the ac was turned on at idle.
so to make sure i let it idle and turned the AC on and it bumped the idle as it was supposed to do and did not die
which means i am now even happier than before !!!
so the lesson of the day is " try the easiest , cheapest fixes first " .
on a side note , it appears this swap is getting popular
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From: the not so stock tribe
quick update , took it to the track for more "testing"
i had the front driveshaft in, so it was time for clutch dumps
i did a few runs trying to get a feel for the car , but i'll cut to the good stuff : i took it up to 4000 rpm and dumped it , which resulted in a 1.93 sixty foot and a 12.7 @108.5
so, am i happy ,,,, kinda i broke the old number i found on the time slip i found in the car when i first got it , but there was a 12.8 and a 12.2 (IRRC) on that slip , so the goal of braking that number is half done
so am i done testing??? hell no , it still have 3000 rpm more to go
the clutch didn't show any signs of slippage , so i guess next time out it will be 5k dumps and more
i also noticed when logging the runs that my timing never went above 24 , so i guess i have to do something about it i'm thinking that 27ish timing should be ok.
another thing to add , the IAC motor decided to take a crap on me and come appart ,,
i'll post some vids as soon as i get them .
i had the front driveshaft in, so it was time for clutch dumps
i did a few runs trying to get a feel for the car , but i'll cut to the good stuff : i took it up to 4000 rpm and dumped it , which resulted in a 1.93 sixty foot and a 12.7 @108.5
so, am i happy ,,,, kinda
i broke the old number i found on the time slip i found in the car when i first got it , but there was a 12.8 and a 12.2 (IRRC) on that slip , so the goal of braking that number is half done so am i done testing??? hell no , it still have 3000 rpm more to go
the clutch didn't show any signs of slippage , so i guess next time out it will be 5k dumps and more
i also noticed when logging the runs that my timing never went above 24 , so i guess i have to do something about it
i'm thinking that 27ish timing should be ok. another thing to add , the IAC motor decided to take a crap on me and come appart ,,
i'll post some vids as soon as i get them .
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From: the not so stock tribe
denali , was that you with the gold colored pickup ?? if it was why didn't you tell me you were there??
eric , you're not the first one that said that
any how , i just got of the phone with comp turbo's and ordered a pair of their CT3 oil-less turbo's with internal waistgates and billet wheels they should ship out in a week .
so i guess its now time to start working on the new exhaust setup
eric , you're not the first one that said that
any how , i just got of the phone with comp turbo's and ordered a pair of their CT3 oil-less turbo's with internal waistgates and billet wheels
they should ship out in a week .so i guess its now time to start working on the new exhaust setup
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Yah, I was driving the golden truck. The only truck that day at the track.
I met you before the race with Mansoor but you were busy with your fans. Mansoor is my cousin.
I noticed the traction is very bad at the track. I had to use 4WD to get to 14.09. With 2WD, I did 14.5 seconds consistantly. Two of the runs in 2WD, I lost traction in 2nd gear and tire spin was all over the place.
Do you think it's because of the dust that day or something is missing?
I met you before the race with Mansoor but you were busy with your fans
. Mansoor is my cousin.I noticed the traction is very bad at the track. I had to use 4WD to get to 14.09. With 2WD, I did 14.5 seconds consistantly. Two of the runs in 2WD, I lost traction in 2nd gear and tire spin was all over the place.
Do you think it's because of the dust that day or something is missing?
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are we talking about mansoor alhozami mansour , or another mansoor?
its a a bit of everything ; the dust didn't help , but you have to keep in mind there is not enough rubber on the track yet. and having a truck with an empty bed and open diff and shaheen tires definatly doesn't help
get a set of real tires or just keep it in 4wheel and get a higher stall converter , something like a 3000 or 3500 stall , that should really make your truck come alive !
its a a bit of everything ; the dust didn't help , but you have to keep in mind there is not enough rubber on the track yet. and having a truck with an empty bed and open diff and shaheen tires definatly doesn't help
get a set of real tires
or just keep it in 4wheel and get a higher stall converter , something like a 3000 or 3500 stall , that should really make your truck come alive ! TECH Resident
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are we talking about mansoor alhozami mansour , or another mansoor?
its a a bit of everything ; the dust didn't help , but you have to keep in mind there is not enough rubber on the track yet. and having a truck with an empty bed and open diff and shaheen tires definatly doesn't help
get a set of real tires or just keep it in 4wheel and get a higher stall converter , something like a 3000 or 3500 stall , that should really make your truck come alive !
its a a bit of everything ; the dust didn't help , but you have to keep in mind there is not enough rubber on the track yet. and having a truck with an empty bed and open diff and shaheen tires definatly doesn't help
get a set of real tires
or just keep it in 4wheel and get a higher stall converter , something like a 3000 or 3500 stall , that should really make your truck come alive !You are right about the tc. I have one with 3200rpm stall that I am going to install. Those tires shaheen are really sticky
, better than your worn tires. And it has locking diff G80 stock.They hooked in two runs and it ran 14.5 for both runs consistanlty. But they are 31". 28" tires will give me better launch speed.
I need to work on improving the launch and 60' time. Thanks for the advice.
Last edited by Denali08; Aug 6, 2012 at 06:48 AM.
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not much to report , but here is a pic of the interior after the headunit install, the interior still needs to be cleaned and polished:
moving along , i got a stock GTO pan and started getting it ready ; i cut the back part out so it would clear the factory rear sway bar:
i'm thinking of going with the gto pan to make things a bit cleaner under the car. right now there is some weeping going on from the perimiter of the pan and from the fittings going to the oil filter. plus running the GTO pan will place the filter on the pan towards the rear of the car , wich will free up some space for the turbos previously taken by the cooler lines. plus the GTO pan is alot more rigid than the sheetmetal one i have now and has the sump placed in the right place for acceleration g forces. and if you are wondering if it hangs too low , it doesn't : the GTO pan still hangs higher than the stock porsche stuff.
here is a pic of the exhaust manifold i plan on using showing how low the turbos will hang :
i'm not planning on doing much work on the car right now , i might just take the front wheels off to see why the brake pad light is on in the dash . i 'm also thinking of hijacking the check engine light on the dash and wiring it to the LS1 PCM. i'm also waiting for a repair kit to fix the "rising sun" spot on the AC control screen and as soon as that shows up i'm fixing it. and if i have time i might just drop it off at the detailers to get the interior all prettied up
moving along , i got a stock GTO pan and started getting it ready ; i cut the back part out so it would clear the factory rear sway bar:
i'm thinking of going with the gto pan to make things a bit cleaner under the car. right now there is some weeping going on from the perimiter of the pan and from the fittings going to the oil filter. plus running the GTO pan will place the filter on the pan towards the rear of the car , wich will free up some space for the turbos previously taken by the cooler lines. plus the GTO pan is alot more rigid than the sheetmetal one i have now and has the sump placed in the right place for acceleration g forces. and if you are wondering if it hangs too low , it doesn't : the GTO pan still hangs higher than the stock porsche stuff.
here is a pic of the exhaust manifold i plan on using showing how low the turbos will hang :
i'm not planning on doing much work on the car right now , i might just take the front wheels off to see why the brake pad light is on in the dash . i 'm also thinking of hijacking the check engine light on the dash and wiring it to the LS1 PCM. i'm also waiting for a repair kit to fix the "rising sun" spot on the AC control screen and as soon as that shows up i'm fixing it. and if i have time i might just drop it off at the detailers to get the interior all prettied up
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not much to report , i got the pan on the new engine , i still need to get the oil cooler adapter on the pan and ready to be plumbed tot he existing cooler. i also need to find a spot to mount the porsche oil pressure sensor on the pan. i'm thinking on the little bulge thingy on top of the oil filter .
other than that , just been driving the car and beating on it , trying to get any issues to show right now. also a few new parts showed up
the new tail lights and bumperetts showed up , i should install them sometime soon :
and another little box showed up from comp turbos , the new t3 internal wastegated oil less units were nicely packaged in
now that they are here , i have to start mocking them up , but the thing is i have to take the header and mufflers off one side of the car and install the new manifold and kinda mock up where i want it to sit and have it connect to the current exhaust . i'm trying to do this with as little down time as i can.
other than that , just been driving the car and beating on it , trying to get any issues to show right now. also a few new parts showed up
the new tail lights and bumperetts showed up , i should install them sometime soon :
and another little box showed up from comp turbos
, the new t3 internal wastegated oil less units were nicely packaged in now that they are here , i have to start mocking them up , but the thing is i have to take the header and mufflers off one side of the car and install the new manifold and kinda mock up where i want it to sit and have it connect to the current exhaust . i'm trying to do this with as little down time as i can.
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from what i understand the bearings inside are sealed and use a special kind of grease . from what i understand the grease needs to be changed every 50,000 miles.
and you are correct , this thing is just too fun . plus the double takes from other drivers are just too much fun !
and you are correct , this thing is just too fun . plus the double takes from other drivers are just too much fun !
from what i understand the bearings inside are sealed and use a special kind of grease . from what i understand the grease needs to be changed every 50,000 miles.
and you are correct , this thing is just too fun . plus the double takes from other drivers are just too much fun !
and you are correct , this thing is just too fun . plus the double takes from other drivers are just too much fun !
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thanks for the compliments guys ,
and marky , thanks for the offer , but i don't think its the pad wear indicator because i'm pretty sure the pads had quite some beef left in them i'm thinking maybe a sensor or sensor plug in the front hubs i guess or something beacuse ( and i could be totally wrong here) i noticed that there is a 10 MPH difference in what the analaoh spedometer is pointing at and what the digital readout is showing . i know on some cars the speed signal is taken from one or both the abs sensors on the hubs , which is the case in this car .
i guess i'll just have to take the wheels off and double check again .
no marky if you are reading this , do you know which sensors ( location ) are the ones responsible for the speedometer signal?
and in other news , i took the car to the track for another round of beating / testing
ended up with a personal best of 12.65 @ 109 !! i didn't change a thing , but i think the cooler temps might have helped
here is the vid of the run , you can see the car actually spins a bit when launching ( it only got a 1.8 sixty ) , i guess it could use a rear alignment to help out a bit.
man i'm loving this car more everyday
and marky , thanks for the offer , but i don't think its the pad wear indicator because i'm pretty sure the pads had quite some beef left in them
i'm thinking maybe a sensor or sensor plug in the front hubs i guess or something beacuse ( and i could be totally wrong here) i noticed that there is a 10 MPH difference in what the analaoh spedometer is pointing at and what the digital readout is showing . i know on some cars the speed signal is taken from one or both the abs sensors on the hubs , which is the case in this car . i guess i'll just have to take the wheels off and double check again .
no marky if you are reading this , do you know which sensors ( location ) are the ones responsible for the speedometer signal?
and in other news , i took the car to the track for another round of beating / testing
ended up with a personal best of 12.65 @ 109 !! i didn't change a thing , but i think the cooler temps might have helped
here is the vid of the run , you can see the car actually spins a bit when launching ( it only got a 1.8 sixty ) , i guess it could use a rear alignment to help out a bit.
man i'm loving this car more everyday
just read thru all the updates. Nice work on the car. You are very impatient getting it all done and running and then now deciding to throw a new engine and turbos on it. Now you have to take it all apart again to do that swap. I know you like staying busy tho so Im sure you dont mind much. Plus if I had two bad *** turbos and a shiny 6l engine sitting in front of me and my 997, Id be like a monkey with a wrench going to town getting it all in there. I can see the motivation to do that work. 
Keep us updated. Those long and drawn out 12 second passes will be a thing of the distant past after getting those hair dryers on that thing.
Keep us updated. Those long and drawn out 12 second passes will be a thing of the distant past after getting those hair dryers on that thing.