Conversions & Swaps LSX Engines in Non-LSX Vehicles
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Old Jun 2, 2006 | 11:28 AM
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Got my PCM this morning and fired the beast 15minutes later. Fuel pump primed, I hit it and the engine fired right up....no stalling no puking....no hesitation.....It has open manifold right now and sounds pretty loud in my tiny garage.

The oil pressure came right up within 4seconds. I have not let idle for more than 10 seconds though

My only concern is the idle RPM.......it is really high. I don't have a tach hooked up but I can tell it is prolly +1500....For that reason I did not let it idle long.

Is this normal....should I grow some ballz and let it idle alittle longer? Could this be because the PCM is learning? Did your guys first start up behave in a similar way?

Thanks to all the guys who have helped me....I could not do it without you guys.
CHeers
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Old Jun 2, 2006 | 11:39 AM
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idiot update
I spent most of last night double checking and triple checking everything.....I thought I got it all.......turns out all my vacuum ports are open.....I forgot to cap those...


I'll grab some caps and see if that calm her down.
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Old Jun 2, 2006 | 11:48 AM
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on mine the first time I fired it up....it went through warmup at close to 1250...then settles down to about 850. After about 10 times of that....and now 2 1 mile test drives...it has settled down to about 1100 at cold start...and about 800 after warm up cycle. After you cap all the vaccuum ports...it should be just fine.

J-
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Old Jun 2, 2006 | 12:39 PM
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Originally Posted by Jhankinson
After you cap all the vaccuum ports...it should be just fine.

J-
yap.......that did it....
It is on jack stands right now......I put it in first...let the clutch out slightly and the wheels spun.......
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Old Jun 2, 2006 | 12:59 PM
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congrats,mine idled around 1200 or so cold then down to 800.
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Old Jun 2, 2006 | 04:47 PM
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Wow! Great news, heres to ya Been wondering when this news would show up.

Like the others said mine starts up about 11-1200 then settles down around 800. I know you gotta be pumped and can't wait to be . After making sure everything was working on mine, I just drove it to the muffler shop, no problems.

Congratulations

Pat
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Old Jun 2, 2006 | 05:19 PM
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Originally Posted by Stu Cool
I know you gotta be pumped and can't wait to be .


Pat
just got from the muffler shop.....this thing sounds great and pulls hard.....I was tempted to beat on it but I parked it and will check everything again to make sure all is well.
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Old Jun 2, 2006 | 06:36 PM
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Very nice job! If I could only talk my dad into doing his 73 Z28 RS w/ a LSx engine...

Jason
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Old Jun 2, 2006 | 09:04 PM
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congrats! mine's being painted on Tuesday then I hope to fire mine up too Everyone else getting their conversions running is encouragement to finish mine. Now post pics/vid!
olly
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