2001 Porsche 996 LS1 Conversion Thread by 1dirtyZ

6 minute(s) of a 536 minute read

any how , got some work done last time :

took the bar that was attatched to the stock porsche mounts off as well as the mounts . i then started the other cradel by bolting in these plates inplace of the original mounts :

i then welded a nut to each end of the "u" :

and drilled the plates so i can attatch the two peices like this :

i also notched the two tubes going front to back , i just need to weld them on .

the block hugger headers came in too, and i'm not diggin'em 

they exit right at where i want to run the bars holding the pedestals :

so i guess i'll just have to wait till i get the vette shorty headers in . they angle rearwards ( or forwards ) and away from the bars . 

and on a side note , i found out that i can run two bullets horizontally on top of each other in the space where the original muffler sits all while maintaining the proper exit location for the tips , which gives more room inside the engine compartment or atleast a better chance to quite down the engine .

03.13.10

a little progress to report 

got the other cradle (v1.1) kinda done 

i first had to get two "L" bends to form the pedestals, then instead of notching them i drilled a hole on the ends and cut through the hole : (looks like the professor charachter on the muppet show )

then i placed the L on to the main hoop and tacked it on :

i plan on welding the other bit that had cut off so it looks like the pipes go through each other , this way a have a mounting point for a two hook or the exhaust .

anyhow, here is how it looks when both sides are on there:

i then sliced the other ends of the pedestals at an angle so they sit flush on the motor plate:

everything is tacked on there , i need to fully weld those bars ( except the motor plate connection - that waits till i get a tranny) but i have to wait till i get the TIG welder back from a buddies shop .

after welding that , this version of the cradle will be almost done

i guess next up will be the V2.0 of the cradle, got everything cut and notched to fit , just need to weld it up when i get the time. 

other than that , i started messing around with some wiring diagrams,,,, not fun 

so as soon as i'm done with the camaro and the race in a week , and the vette headers come in , i should be back on track 

i'm also thinking of using an MR2 electric powersteering pump ( just like in the Audi build thread here), this way i can run the ac compressor and alternator (using a BMR mount ) using belts , and keep the belts on a level below the rearmost crossmember or brace and run a remote EWP and the electric PS pump , this way i can pull the engine towards the rear a bit more ,,,, of course this all depends on the transmission ,,, which is not here 

but its nice to have more options.

03.23.10

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.