LS7 conversion: part 2
LS7 conversion: part 2
Author
Discussion

ultimacz

Original Poster:

260 posts

284 months

Saturday 20th January 2007
quotequote all
Jeff Schwartz just sent us the complete package, several boxes of parts! All we need for the SBC to LS7 conversion. Looks great!

I attach some pics:

The transaxle is a from a Porsche GT2, Jeff fabricated the adaptor and the flywheel, great work:



All accessories adapted and installed by Jeff:



Jeff did the exhaust system with Spectrum 5 Racing and had it powdercoated:



Kit also includes fuel system parts, dry sump tank and lines, electrical system, airbox, gauges and senders,...

Cant wait to start it first time! I will keep posting...

Peter

peterpsg

813 posts

263 months

Saturday 20th January 2007
quotequote all
Looks nice, but where's the dry sump that these engines have? Is it an internal factory (GM) system?

GTRene

22,406 posts

253 months

Saturday 20th January 2007
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nuts that looks like a big present, already unpacked and ready to play withhehe what a nice powerpackage..I'm very yalousyes
good work.
GTRene

Boosted LS1

21,200 posts

289 months

Saturday 20th January 2007
quotequote all
peterpsg said:
Looks nice, but where's the dry sump that these engines have? Is it an internal factory (GM) system?


It's internal and the pump is in the front cover. Have to say I quite like it.

Boosted.

stainless_steve

6,052 posts

287 months

Saturday 20th January 2007
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Very interesting thumbup

San Diego GTR

469 posts

236 months

Sunday 21st January 2007
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Looks great. I'm hoping to get my LS7 from Jeff in a few weeks. Can't wait.
Paul

crafty

2,291 posts

266 months

Sunday 21st January 2007
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yummy yum yum yum!!

GTWayne

4,595 posts

246 months

Sunday 21st January 2007
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I haven't even put 1K mls. on my SBC yet and I am elated with what I have seen from the motor so far but I must say, all this talk of LS motors is getting me going!

crafty

2,291 posts

266 months

Sunday 21st January 2007
quotequote all
GTWayne said:
I haven't even put 1K mls. on my SBC yet and I am elated with what I have seen from the motor so far but I must say, all this talk of LS motors is getting me going!


If you ask nicely you can even get them in black!!

eliot

11,995 posts

283 months

Sunday 21st January 2007
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cloud9

GTWayne

4,595 posts

246 months

Sunday 21st January 2007
quotequote all
crafty said:
GTWayne said:
I haven't even put 1K mls. on my SBC yet and I am elated with what I have seen from the motor so far but I must say, all this talk of LS motors is getting me going!


If you ask nicely you can even get them in black!!


I like to see a bit of mature type bling under the hood. Even I have to draw the line at too much BLACK! After all is said and done I like to think of myself as a "less is more" type of guy at the end of the day.

chuntington101

5,733 posts

265 months

Monday 22nd January 2007
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looks ace! the spectrum 5 exhaust system looks amazing!

thanks Chris.

Pilot Pete

670 posts

247 months

Monday 22nd January 2007
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Looking good, keep us updated.

ultimacz

Original Poster:

260 posts

284 months

Friday 26th January 2007
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Its done !!! Not all of course, but most important that the engine, transaxle and exhaust fit in...



deadscoob

2,265 posts

289 months

Saturday 27th January 2007
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Awesome - are they the road silencers on them?

How long do you think before it's actually running?

I hope you have a video camera

chuntington101

5,733 posts

265 months

Saturday 27th January 2007
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looks very nice ! those headers look really neat!

Chris

ultimacz

Original Poster:

260 posts

284 months

Saturday 27th January 2007
quotequote all
deadscoob said:
Awesome - are they the road silencers on them?

How long do you think before it's actually running?

I hope you have a video camera


If I am not wrong, I think they are Edelbrock silencers.

Now we have to fabricate the rear support for the transaxle, cant use the original Ultima one (designed for the Getrag) because the new box is longer. But we will do a similar design as the original support. Should be approx. 2 weeks.
Good news is that the oil filter just clears the chassis so we dont need to weld. Also the front of the engine just clears the back wall, so no re-work of the engine mounts (adapters supplied by Jeff) was necessary.

Then the accessories, mainly cooling and oil system. This is most demanding now. The dry sump tank will be fixed to the left side of the rear wall (replacing the water swirl pot, which probably has to move to the right or we will leave it out completely). Not much space left then for all the water pipes and mainly the oil-water heat exchanger which we want to use instead of the oil cooler. But this is more a matter of planning now and time, for sure we find a way to get everything in. Can take a month, though.
By the way, does anybody know whether the LS7 needs an oil cooler and oil thermostat and how to install it (into the oil lines to the drysump tank?)
The fuel system should be ok as it is (we already had a return line installed on the SBC), just need to replace fuel pumps and regulator.
Electrics should also be straight forward, Jeff supplied the complete harness. Only the integration of the Ultima A/C is still unknown to us, we will see later.

Whilst doing that we will replace the front brakes with 356mm 6 pot, and also get an improved version of the sequential shift which was optimised for the GT2 box, will now be mounted directly on the box and use just one cable, and will enable even faster shifts.
Would estimate 1 to 2 months in total.

Got a video camera of course (though I have no possibility to put videos on the net, dont have an own web site...)

steve_d

13,802 posts

287 months

Saturday 27th January 2007
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ultimacz said:
......Got a video camera of course (though I have no possibility to put videos on the net, dont have an own web site...)


You can download direct to Pistonheads so you don't need a host site.

Steve

GTRene

22,406 posts

253 months

Saturday 27th January 2007
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very nice mister...aaaaaaaaaaaaaa like ityes el beas"
GTRene

San Diego GTR

469 posts

236 months

Saturday 27th January 2007
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I am about a month or two behind you. Jeff just emailed me that he got my LS7 yesterday. Your installation looks great. What made you choose the Spectrum 5 headers over something else?