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-   -   the start of my LS1 conversion: (http://forums.pelicanparts.com/porsche-engine-conversion-tech-forum/508893-start-my-ls1-conversion.html)

Rebel911 05-24-2010 04:28 AM

So I think I have the engine in for the last time... I had to move the exhaust a bit do to the fit. Needed about 1" on each side.

Harness is on, I need to pick up some parts I ordered from Bob Johnsons. Then I have to figure out why the harness has a three wire MAF plug and the MAF has like a 4 pin out plug.

after that its put in the oil, connect the starter and turn the key for a test fire.
then build the cooling system.

I pulled the bumper off to better see the engine/exhaust in the car for fitment.

http://i690.photobucket.com/albums/v...g?t=1274703645

http://i690.photobucket.com/albums/v...g?t=1274703649

http://i690.photobucket.com/albums/v...g?t=1274703658

http://i690.photobucket.com/albums/v...g?t=1274703666

bifrost 05-26-2010 12:01 PM

This is Seriously Wild! I love it!
I'm watching this.

Rebel911 06-01-2010 10:20 AM

Taking a break. Getting there:

Just for an idea of scale, I am 5'5".

http://i945.photobucket.com/albums/a...g?t=1275249019

http://i945.photobucket.com/albums/a...g?t=1275249020

to do list.

http://i945.photobucket.com/albums/a...g?t=1275249020

http://i945.photobucket.com/albums/a...g?t=1275249022

they line up better now.

http://i945.photobucket.com/albums/a...g?t=1275249023

http://i945.photobucket.com/albums/a...g?t=1275249023

http://i945.photobucket.com/albums/a...g?t=1275249027

http://i945.photobucket.com/albums/a...g?t=1275249027

http://i945.photobucket.com/albums/a...g?t=1275249023

Looks like the ECU is not getting juice or I have a fried ECU
[youtube]Ae-NNFCF6Gs[/youtube]

mbaran 06-01-2010 01:47 PM

Thank you for the tons of pictures. I'm finally getting the ball rolling on mine again this weekend (just purchased rad hoses, fuel lines, pump, regulator, and lots of fittings).

I hope to have the entire front end sealed up within the next two weeks, and all thats left is making an engine cradle.

shanghai_todd 06-01-2010 04:40 PM

Man that oil pan looks low.. Check out my post, I have an air intake you might be intrested in :) wont work with my car but will kick ass on yours..

Rebel911 06-02-2010 03:17 AM

Quote:

Originally Posted by mbaran (Post 5381752)
Thank you for the tons of pictures. I'm finally getting the ball rolling on mine again this weekend (just purchased rad hoses, fuel lines, pump, regulator, and lots of fittings).

I hope to have the entire front end sealed up within the next two weeks, and all thats left is making an engine cradle.

if you need any reference pics just let me know; I will email them to you.

Quote:

Originally Posted by shanghai_todd (Post 5382075)
Man that oil pan looks low.. Check out my post, I have an air intake you might be intrested in :) wont work with my car but will kick ass on yours..

yea, once it is up an running I will get a shallower pan. PM me how much you want for the intake. I might be interested.

Rebel911 06-02-2010 04:57 PM

needs some looking around any ideas?
Here is the 1st video:



link http://www.youtube.com/watch?v=9KZhqNVA790

mkingham 06-13-2010 09:35 AM

Hey Rebel, I put a post in Todd's thread (which I am sure you are following), but ...

Holley is having gathering of LS powered cars this September in Bowling Green, KY.

I'll be there with my 911 LS6 Cab, it would be great to have a few other non-domestics representing.

Mike

Rebel911 06-13-2010 01:09 PM

if it's running I will be there. I assume this is Holley as in the carbs.
can you pm me any of the details? thanks

it's alive!!! running pig rich since the o2's are not in.
looks like I need a new fuel pressure regulator and another muffler.

the engine i purchased had 16 slightly bent valves so I had to source new heads... picked them up for $35 complete with springs and valves. God I love working with LS1's.
swapped them on in about 1 hour and turned the key. below is the end result.



<object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/hdn_efZKK6E&hl=en_US&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/hdn_efZKK6E&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>

mkingham 06-14-2010 04:35 AM

Holley LS Fest info
 
Quote:

Originally Posted by Rebel911 (Post 5402457)
if it's running I will be there. I assume this is Holley as in the carbs. can you pm me any of the details? thanks

Here is their website
Holley LS Fest

shanghai_todd 06-14-2010 05:18 AM

Were you guys thinking of participating in the drag or 0~60 events? I do not trust my 915 tranny in either of these so the show-n-shine non domestic would be for me :D

Previous cars I have driven to out of state events and it is not fun burning out a clutch or blowing up a tranny miles from home. Happened with my RX-7 and 12.88 qtr mile Miata..

Let me know, this has gotten my attention now

Quote:

Originally Posted by mkingham (Post 5403192)
Here is their website
Holley LS Fest


mkingham 06-14-2010 07:14 AM

I bought the pass for the rally, tour and car show. I have no idea if I will be comfortable tracking my car for any of the hard core events (0 to 60 to 0 or the drag). I guess the more I drive the car, the better I will understand what I am comfortable with.

My gut is that so far from home, it will be best to take it easy on the car since it has to get us home on Monday. OK, maybe there could be a burn out or two along the way, but nothing crazy :)

Rebel911 06-14-2010 09:32 AM

If I go it will be a trailer queen on the way down. Way to far to go from NY to KY on a new set up.

Rebel911 06-19-2010 04:44 PM

I will post a good video of it running tomorrow.

The engine is running strong. now on to cooling it.
it is a firebird radiator. I an almost done with the shrouding. tomorrow I am going to ru the hoses to the back and finish the system.

Hopefully by the endog the day tomorrow i will be drivable.

http://i690.photobucket.com/albums/v...g?t=1276993447

http://i690.photobucket.com/albums/v...g?t=1276993224

http://i690.photobucket.com/albums/v...g?t=1276993274

http://i690.photobucket.com/albums/v...g?t=1276993242

http://i690.photobucket.com/albums/v...g?t=1276993286

http://i690.photobucket.com/albums/v...g?t=1276993293

http://i690.photobucket.com/albums/v...g?t=1276993300

http://i690.photobucket.com/albums/v...g?t=1276993309

http://i690.photobucket.com/albums/v...g?t=1276993778

Rebel911 06-19-2010 04:45 PM

http://i690.photobucket.com/albums/v...g?t=1276993375

http://i690.photobucket.com/albums/v...g?t=1276993385

http://i690.photobucket.com/albums/v...g?t=1276993414

Ken911 06-19-2010 06:14 PM

It may be just me but a lot of the ruffs, strosek and several others shaved the rain gutters. this whoe chopped top would flow much better if you shaved the gutters and tig welded the seams. makes the body stiffer also.

Rebel911 08-02-2010 06:20 AM

decided to paint the car myself. I want to be able to say I did everything myself. (other than the cage) I still have to bolt all the trim, rockers and tail back on and finish painting the inside.

http://i690.photobucket.com/albums/v...g?t=1280758221

http://i690.photobucket.com/albums/v...g?t=1280758227

http://i690.photobucket.com/albums/v...g?t=1280758650

http://i690.photobucket.com/albums/v...g?t=1280758231

http://i690.photobucket.com/albums/v...g?t=1280758232

dtakenname 08-02-2010 07:51 AM

wow, that looks so nice!
Keep going.
Did you do anything for the too low oil pan?

Rebel911 08-02-2010 09:23 AM

Thanks, I have not changed out the pan yet. I am trying to get the hard to do and weather sensitive projects tackled 1st.

shanghai_todd 08-02-2010 09:51 AM

Hopefully some of the other LS1 guys will chime in on this question as well. How much sagging in the rearend are you seeing? If it is anything like mine and as low as your oil pan is I am betting a half throttle launch will make that oil pan drop to the ground from the torque. Granted I have crappy KYB rear shocks and stock torsion bars my car takes a huge dip when the throttle is applied.

Coil overs with helper springs are in my horizon but I am curious to see if this is happening to the rest of the LS1 swappers on this site.

Try pushing on your back bumper and see if your pan hits the ground. This may not be a problem for the 930 guys who have larger torsion bars but my SC suspension is not up for the challenge..

Tim K 08-02-2010 10:21 AM

Is there a cost effective (and non intrusive) way to incorporate improved anti squat geometry in the rear suspension (a la 930)? 930 control arms are expensive and the Smart Racing control arm pivot boxes (I believe) require the rear seat area to be hacked up. IMHO, stiffer springs are in order anyway with your heavier engine, but if you can take advantage of anti squat geometry then you won't need to compromise with an overly stiff ride.

my two cents

Keep up the great work!

Tim K

Rebel911 08-02-2010 12:57 PM

while the observation is interesting, my LS1 weighed in over 50 lighter than the old flat six (stripped LS1 in my car is 425#). A fully dressed LS engine is 34 pounds lighter than the flat six.

LS - 450#
flat 6 - 488#

When I look at the car the wheel gap looks right; not too squaty.

My back seats are stripped however I had the cage/bracing set up so I can plug and play rear coilovers. I don't plan on putting in old tech if I want to maximize output. I do what to keep some of the old look.

Tim K 08-02-2010 07:11 PM

Quote:

Originally Posted by Rebel911 (Post 5486006)
while the observation is interesting, my LS1 weighed in over 50 lighter than the old flat six (stripped LS1 in my car is 425#). A fully dressed LS engine is 34 pounds lighter than the flat six.

LS - 450#
flat 6 - 488#

...

Interesting. However, my point was more about not having to compromise ride comfort to limit squat. What kind of low-end torque do you get with an LS1 engine?

Tim K

Rebel911 08-04-2010 03:00 PM

I am not going to put out numbers till I have dyno sheets to prove the information.
i already have a certified weight for the car.

If I post estimates there will be may too may non-believers.

As for ride comfort, that's why I have a X5.

as soon as i fit up a coil over set put we will see how it goes. That will be a winter project.

David Borden 08-04-2010 07:44 PM

Quote:

Originally Posted by Tim K (Post 5486602)
Interesting. However, my point was more about not having to compromise ride comfort to limit squat. What kind of low-end torque do you get with an LS1 engine?

Tim K

IF the issue of squat is torque of the V8... changing the timing curve can cure that... but why? Torque rules :D

David

aigel 08-04-2010 09:02 PM

Looks great - I like the fact you painted in yourself and in matte black.

I think the car needs to come down an inch in the front an 3/4 of an inch in the back. It may also be time to sell the Fuchs and get an aftermarket wheel that's at least 17".

George

Tim K 08-04-2010 09:05 PM

Torque is a wonderful thing but we try and manage the negative side effects :).

Squat is a function of weight transfer (result of wheel torque) and suspension geometry. Generally speaking, squat will increase with wheel torque unless you adjust suspension geometry or move to stiffer springs.

Now back to the build!

Tim K

Rebel911 08-06-2010 01:38 PM

with the wing on. This weekend I am painting the inside and jams. any red on the outside is either being covered by trim or on the plastic from the last spray job. It will be gone this weekend.
wind shield, lights, bumpers are also planned. I want to get it inspected next week.

http://i690.photobucket.com/albums/v...g?t=1281130575


http://i690.photobucket.com/albums/v...g?t=1281130580

http://i690.photobucket.com/albums/v...g?t=1281130588

http://i690.photobucket.com/albums/v...g?t=1281130593

Ken911 08-06-2010 01:53 PM

Quote:

Originally Posted by Jgordon (Post 4995878)
When someone says V8 around here, people typically react a little more harshly than if you'd peed on their shoes and slapped their wives.

Looks like a cool project.

With your skill at bodywork, I hope you didn't start with a pristine turbo.

wouldnt have bothered me much if it had been a regular 911 but hard to see a turbo cut up unless it was already a salvage.

Rebel911 08-06-2010 02:05 PM

Quote:

Originally Posted by Ken911 (Post 5493446)
wouldnt have bothered me much if it had been a regular 911 but hard to see a turbo cut up unless it was already a salvage.

It was not a perfect turbo.

Ken911 08-06-2010 02:08 PM

Thats good. mine was a salvage when i turned it into a slant nose even then. i felt bad once i found out they only made about 120 turbo targas total.

Rotornut1 09-20-2010 08:14 PM

EFI intake
 
I've been watching with great interest over the last few months the progress some of you guys are making. I'm finishing up the bodywork on my '74 coupe and then will be ready to do my LS2 conversion. I'm going with RH and a front radiator.
I had to take a break from a long summer of sanding to at least trial fit my engine and I wanted to share the success I've had with my choice of intake. I've got the Edelbrock pro flow XT EFI manifold on my LS2 ( part #71403). It easily clears the oil pressure boss so no need for modification there. I've also got the original 90mm throttle body and am using Specter Performance's elbow ( Part #9781). I'm very happy with this setup, not even close with any clearance (of course I'm running a rear spoiler as the manifold sticks out of the lid)
Time to take the motor back out and finish sanding the body (that's why everything in my pictures are covered with dust) Will have paint soon then can finish my mechanicals.
I want to thank shanghai_todd, mbaran, Rebel911, mkingham, and bunch of other guys on this forum who have helped me plan this project. I'll start my own thread when I have a little more to offer. Thanks againhttp://forums.pelicanparts.com/uploa...1285042421.jpg
http://forums.pelicanparts.com/uploa...1285042433.jpg
http://forums.pelicanparts.com/uploa...1285042449.jpg

Jim2 09-20-2010 08:47 PM

Those 15s gotta go man.

http://i690.photobucket.com/albums/v...g?t=1281130580

Rebel911 10-03-2010 02:13 PM

the 15's are going this winter.

I like Rotornut1's build looks clean.

Well, lets play name that noise... any ideas?
I have 50 psi of oil pressure at ideal and good rising pressure when accelerating.
Engine is cool to warm as I only drove it ~200 yards to record the sound.

http://www.youtube.com/watch?v=RMLyinXhW6U

Forgot pics of the car now and the new pan. The rear window is going for dark tint tomorrow.

http://i690.photobucket.com/albums/v...g?t=1286143455

http://i690.photobucket.com/albums/v...g?t=1286143462

http://i690.photobucket.com/albums/v...g?t=1286143465

http://i690.photobucket.com/albums/v...g?t=1286143470



Old pan

http://i690.photobucket.com/albums/v...g?t=1286143366

New pan

http://i690.photobucket.com/albums/v...g?t=1286143435

http://i690.photobucket.com/albums/v...g?t=1286143441

http://i690.photobucket.com/albums/v...g?t=1286143545

shanghai_todd 10-03-2010 05:24 PM

sounds like a lose rod.

Rebel911 10-03-2010 05:57 PM

Or flywheel bolt... balls

Jim2 10-03-2010 06:19 PM

You might cut the oil filter apart and look for desbris as signs of a rod bearing being chewed up.

Is there anything hitting/rubbing the chassis which you overlooked?

shanghai_todd 10-04-2010 07:01 AM

Second thought: Is there a baffle or something different about that oil pan that could be mis-aligned or flipped up that is hitting the rod?

I would remove the pan and start checking for a scared area or lose rod.

Rebel911 10-04-2010 10:33 AM

Quote:

Originally Posted by shanghai_todd (Post 5596080)
Second thought: Is there a baffle or something different about that oil pan that could be mis-aligned or flipped up that is hitting the rod?

I would remove the pan and start checking for a scared area or lose rod.

good call. I will check tonight. the windage tray is brand new but maybe it was bent.

I am going to 1st short each coil, one at a time, to check to see if it is rod knock. Next I am pulling the valve cover and oil pan to check for cover wear. Last I am going to pull the engine to check the flywheel bolts.

nice!
good thing my wife is going to a retreat with her sister this weekend.

nineball 10-04-2010 10:48 AM

i just saw a 944 with an ls1 this weekend at a DE. he said it had not hit the dyno as he had just finished a week ago or so but his estimation was 400hp/400ftlb. poor guy has clutch problems and could not go out on sunday but we had been sharing the same instructor who said it was like being belted to a rocket.


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