Mon Jul 08, 2013 3:56 pm by Admin

For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

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LS1 or LS2

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LS1 or LS2

Post  Rich L. on Fri Sep 30, 2011 12:46 pm

I'm looking for advice on the engine to buy. My car is a track car, fully stipped and caged which will recieve only occasional street. I have 2 engines available to me at about the same cost and I'm trying to decide. #1 is an LS2 pull-out from an '05 GTO, complete with accessories, wiring harness, ECM and the DBW throttle pedal. 41k miles, it's a factory 400hp engine. #2 is an f-body LS1, freshly rebuilt by a race engine shop with upgraded rods, including an ECM dyno tuned to 430hp. No accessories or wiring harness.

I feel like I'd get longer life and better reliability out of the factory LS2. But I like the idea of the 0 mile engine and wonder if the rebuilt LS1 would hold up better to track use. I believe installing the LS1 would be easier; cable throttle, fewer wires, less re-inventing of the wheel.

Any thoughts would be appreciated.

Rich L.

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Join date : 2011-05-30
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Re: LS1 or LS2

Post  Arthropraxis on Fri Sep 30, 2011 1:47 pm

I would get the LS2. The harness, ECM and accessories all add up. Unless you were looking to use aftermarket everything anyhow, then it woud be a wash.

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Re: LS1 or LS2

Post  Rich L. on Fri Sep 30, 2011 2:21 pm

Yeah, cost is not really a deciding factor. The rebuilt LS1 is cleaper to buy. But after getting accessories and a wiring harness it's about the same as the LS2 which includes it all.

I'm trying to decide if I'm better off with a 0 mile, rebuilt engine with various aftermarket parts and tuned by a shop. Or with a full factory setup presumably with headroom that might make it last longer but with added complexity to the install.

Rich L.

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Re: LS1 or LS2

Post  944-LT1 on Fri Sep 30, 2011 4:15 pm

6.0 > 5.7 Very Happy

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Re: LS1 or LS2

Post  marc a on Sun Oct 02, 2011 9:31 am

My decision would be based on whether you trust the rebuild shop, and if so go with the LS1. The only peripherals that you need are the alternator and psp if you have a power rack. I am assuming that the MAF is included because they could not of tuned the PCM without it. 430 at crank is 365 at the wheels. My tuner got that out of a stock 2002 LS1 without messing with the timing or rev limiter.

Wiring harness can be had for cheap and needs to be reworked anyway.

Did you get a build sheet? Hopefully they did not bore out the cylinders.

If you have any doubts about the rebuild, go with the LS2. The mileage is low and the engines are rock solid from the factory. You will be using a new oil pan so pull it and check out if there is crap in there from poor oil change intervals, etc.

Just my 2cents.

marc a

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