My LS1 Conversion 911

[CBRacerX]

Great project!~ Looking forward to the next installments.

[shbop]

How are you going to handle engine management? Are you using a modified GM "ecu", or a different system? Looking good!

[shanghai_todd]

I am ordering a custom programed PCM for the vette/camaro. Wire harness and PCM's are becoming very cheap these days as everything from Miata's to BMW's are doing LS1 conversions.

I ordered the harness from TechRods on Ebay, very happy with it. All the sensors are labeled and provides enough length to route back into the car. I did have to modify 3 sensors wires as the intake is reversed. I will post pictures of the wire harness install when I return to the US.

I also plan to have the PCM programmed for dual fan outputs @ 180F and 200F. This will be controlled by relays so that they are not running all the time.

Below is a link for the harness.

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=190303754279QQssPageNameZMERC_VIC_RCRX_Pr4_Pc Y_BIN_Stores_IT&refitem=200329910062&itemcount=4&refwidgetloc=closed_view_item&usedrule1=CrossSell_LogicX&refwidgettype=cross_promot_widget&_trksid=p284.m183&_trkparms=algo%3DCRX%26its%3DS%252BI%252BSS%26itu% 3DISS%252BUCI%252BSI%26otn%3D4

Originally Posted by shbop

How are you going to handle engine management? Are you using a modified GM "ecu", or a different system? Looking good!

[shanghai_todd]

Thanks, it may be awhile till my next update. I am back in Shanghai for the next month but will be planning my next move for when I return

Originally Posted by CBRacerX

Great project!~ Looking forward to the next installments.

[FirstGen]

Do you have any pictures of the engine cradle? Interested to see how that piece looks. Nice project!

[User Name]

orsum project you have there
how far have you got

[my996]

Originally Posted by shanghai_todd

Thanks, it may be awhile till my next update. I am back in Shanghai for the next month but will be planning my next move for when I return

What's the latest Todd. Curious to see how far you have gotten on this conversion.

[shanghai_todd]

Been sometime since my last update and I am now back in Florida so let the wiring begin

Spent last weekend putting the finishing touches on my harness and relay circuit.

[shanghai_todd]

Ended up cutting a 2"X2" opening in the firewall to route the harness thru, the ends of an LS1 harness are huge connectors that make a tight fit. Once thru the firewall I simply mounted the PCM on the passenger side and relay circuits for my water pump and cooling fans behind the drivers side.

[shanghai_todd]

Here is a shot of the engine compartment fully wired up and ready to go.

[craig356]

Holy Cow! Can you tell us more about the header/exhaust setup? Any more pictures and also, how does the car look with the engine deck shut? Still stealth or can you tell it has a monster lurking?

[abeye28]

Great progress.....looking forward to the final product!!

[shanghai_todd]

Originally Posted by craig356

Holy Cow! Can you tell us more about the header/exhaust setup? Any more pictures and also, how does the car look with the engine deck shut? Still stealth or can you tell it has a monster lurking?

The exhaust is the next on my list, I currently have Z06 header as they flow the best with a 3" flange coming off. I will be ordering 2 Varex variable mufflers from Australia in the next week or so (very nice mufflers and can control the sound)

Once the exhaust arrives I will need to have the car towed to a local speed shop fo the welding. It will require a talented welder and pre bent mandrel pipes.

With the deck lid closed it looks like a big nasty intercooler, I will get better pictures latter

[craig356]

That is wicked..!....I cannot wait to see the exhaust setup once you have it completed.......Very interesting! Thanks for sharing, Craig

[Facey]

nice job !

i'm loving your build

[0396]

Very SWEET!

[Rob G]

Originally Posted by shanghai_todd

They are for meant to be used with a special clamp, They are very expensive to use so I will probably cut and use a nylon hose coupler to give it a little flex at the radiator.

The Wiggins clamps below are something like 30~40 dollars so I do not want to go with welding the male adapter needed and the clamps for something that has not been proven out yet. There are still many "What Ifs" with having a radiator mounted as I am doing so this must be proven first.

Great thread. Here is a picture from Monterey last weekend. I thought that clamp was a great idea so i snapped this picture.

Rob G

[Roc Doc]

On the last Rock Racer I worked on, we used the Hushpower II (FLowmaster) mufflers. They're double wall SS to control heat and resonation. And they sound great when you open it up. I don't know if you'll have room for them, but i think they're a good option as well.

Glad to see you're back on it.

[lin7310948]

i used hushpower mufflers on my sbc conversion. they fit well..sound great...and as stated stainless steel construction and reaonably lightweight. plenty of room for headers with the v8... but.. i still do not understand all the effort to locate the radiator in the rear nor to diffuse all that heat directly over the engine. it is just too easy to place up front... otherwise good to see another conversion.

[shanghai_todd]

Originally Posted by lin7310948

i used hushpower mufflers on my sbc conversion. they fit well..sound great...and as stated stainless steel construction and reaonably lightweight. plenty of room for headers with the v8... but.. i still do not understand all the effort to locate the radiator in the rear nor to diffuse all that heat directly over the engine. it is just too easy to place up front... otherwise good to see another conversion.

Radiator was something that I wanted to try, the true test is still to come and if there is an issue maintaining cool then I will look to add something up front, prefer not to cut up the front if I do not have to.

For the exhaust I am looking to SS Varex, they are used widely in Australia on the LS1 and LS2 Holden cars and sound kick ass. Plenty of video's on Youtube like the ones below. Cost is going to be high but I do not want to sound like a vette or camaro and again want something different.

Any pictures or video of other V8 conversion out there? I would love to se them

http://www.youtube.com/watch?v=FNlgw1COym8
http://www.youtube.com/watch?v=sy5c_Lk5YFI