2001 porsche 996 ls1 conversion
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the current cradle is running the factory porsche mounts , the other cradle uses the F-body mounts . no way i'll be hard mounting the engine to the frame 
reject, i don't understand your question .
txcarbuilder, the LS4 accesory drive was an option , but we don't get the montecarlo's this side of the world so the parts are not readily available . i could order them , but if one small thing goes wrong i'm stuck for a couple of weeks till i get a replacement . using ls3 stuff on the other hand makes it much easier ; since you can get parts from the neighborhood grocery shop
still no progress to mention , still waiting on the headers and might order the trans this week .
i did put in the insulation (boom matt ) and took the headlight out and polished them ,,,, and thats about it
reject, i don't understand your question .
txcarbuilder, the LS4 accesory drive was an option , but we don't get the montecarlo's this side of the world so the parts are not readily available . i could order them , but if one small thing goes wrong i'm stuck for a couple of weeks till i get a replacement . using ls3 stuff on the other hand makes it much easier ; since you can get parts from the neighborhood grocery shop
still no progress to mention , still waiting on the headers and might order the trans this week .
i did put in the insulation (boom matt ) and took the headlight out and polished them ,,,, and thats about it
Teching In
Joined: Feb 2010
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From: london uk
For anyone who is wanting to install an LS engine in either a Porsche or Audi I make the adapter kits to fit those engines and transmissions together.
eric@kitcarchassis.com
Take a look at the LS4 front accessories. They are shorter than the other LS engines and might be of some use.
eric@kitcarchassis.com
Take a look at the LS4 front accessories. They are shorter than the other LS engines and might be of some use.
i was looking at kennedy, bncproducts.com.au, jandrmachine.com, race-car-replicas.com plates also and one of the oldest bellhousing adapter companys castlemainerodshop.com.au makes any engine to any transmission bellhousings.
can you have a look at my pics on pg 5, and let me know what you think, as it's much different then 01e plate, like guru's.
i am going 0b4 because i think it's better than the ls4 acc. drive route. but saw your post in the ls4 section, try these guys below for balancer and wp, they sell a kit, although it's not on their website now, here is pic below. also other link to some more fiero guys who have perfected this ls4 wp and pulley to ls7.
i can't beleive gm doesn't sell the pulley and why hasn't anyone copied the wp and pulley design with improvments, what a seller in the ls engine swap market, as everyone without a us made car needs a narrow acc. drive. john
http://www.fastfieros.com/index.htm
http://www.v8archie.com/
Hey nice project, I am a Porsche tech, and if you need any help with the Porsche side of things shoot me a PM. I can get you pics of the engine/trans layout if you want as i just rebuilt the transmission your looking for today, and have it 3/4 of the way back in the car, but i can tell you it does sit behind the crossmember, about even with the sway bar. Hope this helps, and if you brough it to the dealer i work at, me and the parts guy would take you out and show you both our Porsche V8 projects...
Mark
Mark
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R8Dream thanks for all the links !!!
Marky522, thanks for the offer but i doubt the car will ever make it to the states
i do have a question for you : is there anything stopping me from moving the transmission forward a couple of inches other than the driveshaft and the mount?
cuase from looking under my car all i see stopping me is fabbing a new trans mount and shortening the driveshaft.
what do you think?
Marky522, thanks for the offer but i doubt the car will ever make it to the states
i do have a question for you : is there anything stopping me from moving the transmission forward a couple of inches other than the driveshaft and the mount?
cuase from looking under my car all i see stopping me is fabbing a new trans mount and shortening the driveshaft.
what do you think?
R8Dream thanks for all the links !!!
Marky522, thanks for the offer but i doubt the car will ever make it to the states
i do have a question for you : is there anything stopping me from moving the transmission forward a couple of inches other than the driveshaft and the mount?
cuase from looking under my car all i see stopping me is fabbing a new trans mount and shortening the driveshaft.
what do you think?
Marky522, thanks for the offer but i doubt the car will ever make it to the states
i do have a question for you : is there anything stopping me from moving the transmission forward a couple of inches other than the driveshaft and the mount?
cuase from looking under my car all i see stopping me is fabbing a new trans mount and shortening the driveshaft.
what do you think?
--JMarsa
R8Dream thanks for all the links !!!
Marky522, thanks for the offer but i doubt the car will ever make it to the states
i do have a question for you : is there anything stopping me from moving the transmission forward a couple of inches other than the driveshaft and the mount?
cuase from looking under my car all i see stopping me is fabbing a new trans mount and shortening the driveshaft.
what do you think?
Marky522, thanks for the offer but i doubt the car will ever make it to the states
i do have a question for you : is there anything stopping me from moving the transmission forward a couple of inches other than the driveshaft and the mount?
cuase from looking under my car all i see stopping me is fabbing a new trans mount and shortening the driveshaft.
what do you think?
I will take some pics of the current setup for you today. Honestly, the 911 axles are about a PERFECT straight shot out to the wheel I bet you could move it forward and inch or two without causing too much issues, I will tell you over a period of time you will wear out cv boots more though, the boxster S has much more driveaxle angle and kills CV boots.
HTH
Mark
it's the LS3 by your statement. Regardless, it's a nice design. Thread Starter
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From: the not so stock tribe
jmarsa, i thought about that but moving it forward a few inches only alters the angle slightly and shouldn't affect length much .
marky, i would really appreciate it ! thanks!
ls1450 , the engine is an LS1 but it will run the LS3 stuff like the balancer and water pump and other stuff.
on a side note , i just got off the phone with efren from LA dismantlers and they hooked me up with the transmission as well as EVERYTHING i needed for the conversion from automatic to manual . they should have everything ready to ship in a couple of days
that should keep me busy for a while
i'm also doing some research on the electronics i'll be using from the porsche , so i've started with the equivelant of the crank position sensor. on the porsche the sensor is mounted on the bellhousing and the trigger wheel is on the back side of the flywheel ( unlike the ls1 where the reluctor wheel is on the crank in the engine) .
from what i gathered i don't think i can use the porsche setup , since most of the adapter kits make their own flywheel which does not incorperate the trigger wheel ( wich is a 58toothwheel (with 2 missing teeth for a total of 60).
so i found some sites that sell a 58 tooth wheel which i can bolt on the front of the balancer, or press fit them on the back of the balancer like this :
or machine the teeth on the balancer itself like this :
if i was going to use this method i most likely have to use an SLP pulley cause of the deeper or taller walls they have which should make it much easier to machine
or machine the flywheel back side like this :
but i'm not favoring this cause it might throwoff the flywheel's balance .
off course with all these methods i have to fabricate a bracket to hold the stock porsche crank sensor.
marky, i would really appreciate it ! thanks!
ls1450 , the engine is an LS1 but it will run the LS3 stuff like the balancer and water pump and other stuff.
on a side note , i just got off the phone with efren from LA dismantlers and they hooked me up with the transmission as well as EVERYTHING i needed for the conversion from automatic to manual . they should have everything ready to ship in a couple of days
that should keep me busy for a while
i'm also doing some research on the electronics i'll be using from the porsche , so i've started with the equivelant of the crank position sensor. on the porsche the sensor is mounted on the bellhousing and the trigger wheel is on the back side of the flywheel ( unlike the ls1 where the reluctor wheel is on the crank in the engine) .
from what i gathered i don't think i can use the porsche setup , since most of the adapter kits make their own flywheel which does not incorperate the trigger wheel ( wich is a 58toothwheel (with 2 missing teeth for a total of 60).
so i found some sites that sell a 58 tooth wheel which i can bolt on the front of the balancer, or press fit them on the back of the balancer like this :
or machine the teeth on the balancer itself like this :
if i was going to use this method i most likely have to use an SLP pulley cause of the deeper or taller walls they have which should make it much easier to machine
or machine the flywheel back side like this :
but i'm not favoring this cause it might throwoff the flywheel's balance .
off course with all these methods i have to fabricate a bracket to hold the stock porsche crank sensor.
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the plan is to run the ls1 pcm and harness to run the ls1 , and use the porsche pcm to operate everything else like window, instrument cluster , abs, a/c , etc.
i'm planning on running as many porsche sensors on the ls1 as i need to make the pcm think the engine is still there (so it doesn't get post birth maternal depression
)
think of it as one way of getting the elertronics to work
heck , i might even keep the original dignostic port operational just so i can see the look on he porsche dealership employee after he hooks up the scanner to it
i'm planning on running as many porsche sensors on the ls1 as i need to make the pcm think the engine is still there (so it doesn't get post birth maternal depression
)think of it as one way of getting the elertronics to work
heck , i might even keep the original dignostic port operational just so i can see the look on he porsche dealership employee after he hooks up the scanner to it
at first i was gonna say WHY WOULD ANYONE EVER DO THAT TO A 996 TT car but then i read your entire first post as you got the car as a rolling chassis and you can keep AWD!!!!!! this will be a very nice and interesting project... LS power with AWD in a lightweight 996! when your done and get sick of it PM me a sale price haha
the plan is to run the ls1 pcm and harness to run the ls1 , and use the porsche pcm to operate everything else like window, instrument cluster , abs, a/c , etc.
Rewire them independent?
You can probably wire in two OBDII ALDL connectors. One with the Porsche pinout to flip the service guys lid, the other to the 4 wire GM pinout for your tuner. As long as you dont use both at the same time, there shouldnt be a problem
You can probably wire in two OBDII ALDL connectors. One with the Porsche pinout to flip the service guys lid, the other to the 4 wire GM pinout for your tuner. As long as you dont use both at the same time, there shouldnt be a problem
The problem with things on the CAN bus is that you need 1 wire serial connection speaking the right language to do tings. It is like the AC request signal on newer GM PCMs. You can either figure out the language and transmit it (which a lot of people talk about doing but very few have done successfully) or you have to switch to things that work conventionally (like a speedo, tach, etc.).
The idea of keeping the host ECU in tact and thinking the engine is working is interesting, but it might be harder to pull off than it appears.
The idea of keeping the host ECU in tact and thinking the engine is working is interesting, but it might be harder to pull off than it appears.