Has anyone put an LS engine into a 996?

[Steve Rance]

ooid said:

Can it still do this ?

Yes, probably everywhere

[Escy]

If you wanted a track car, you'd surely be better off building a V8 Cayman?

[Slippydiff]

Escy said:

If you wanted a track car, you'd surely be better off building a V8 Cayman?

^ This

[Slippydiff]

anonymous said:

[redacted]

That suggests logic enters the equation in matters such as this, in my experience it rarely does.

And quite frankly, if wanted to drive to and from the 'Ring/Spa in reasonable comfort, then be able go on track and call on 500+ mid engined horsepower in a package costing less than £25k, a Lotus with a wheezy, cr*p sounding 4 pot motor probably isn't going to tick many of MY boxes.

Added to which being stuck by the side of the road when the Lotus breaks doesn't appeal much either, neither does the hopeless build quality, low rent interior or mechanical component accessibility issues. As for the cost of Elise specific parts and maintenance....

Granted a 996 is probably not the best location for an LS3 engine, but dropped in amidships in a Cayman, I very much doubt the handling/chassis dynamics would suffer to the degree some on here would have you believe.

[unclemark123]

I am going LS3 in my 996. Kit on order. Have the engine. 525 bhp

[SRT Hellcat]

one mans meat is another mans poison. Good luck with the project. Personally I would no sooner wish to put a V8 into the back of a 911 as I would a flat 6 into my 65 FIA Mustang

[AshBurrows]

unclemark123 said:

I am going LS3 in my 996. Kit on order. Have the engine. 525 bhp

Hell yeah! I'm watching with great interest.
Did you buy GMs 525 kit? I went with the stock block and TSP cam and CC valves etc as the GM setup is pretty oldschool comparatively so be interested to see how you get on with it.
What sump you using to get as low as possible? Foxbody?

[ForzaGilles]

SRT Hellcat said:

one mans meat is another mans poison. Good luck with the project. Personally I would no sooner wish to put a V8 into the back of a 911 as I would a flat 6 into my 65 FIA Mustang

+1

[unclemark123]

Controversial choice I note

I found a cheap stock brand new crate motor on Ebay 430hp variant. I am changing the cam and using the GM 525 run kit.

Using the corvette sump as recommended by Renegade Hybrids.

[Tydeides]

Love the irony regarding the Lotus comments considering Lotus designed the LS3 for GM

[AshBurrows]

Tydeides said:

Love the irony regarding the Lotus comments considering Lotus designed the LS3 for GM

Source?! I've never heard this!

[HairbearTE]

AshBurrows said:

Tydeides said:

Love the irony regarding the Lotus comments considering Lotus designed the LS3 for GM

Source?! I've never heard this!

That's because they didn't. They did however have a hand in the design of the older LT5 engine in the ZR1 Corvette of the early 90s. The later LS series of engines however share none of that engines DNA.

[jonindorset]

Watch Hoovies Garage on Youtube - some of his Apollo 911 videos - and don't do it!!!
Hilarious videos anyway, cataloguing someone else's stupidity...

[Spaceshuttle]

Regarding your use of a corvette pan in your 996 conversion. The standard corvette “batwing” oil pan has the oil pickup in the rear of the pan. When you run the LS engine in the 911, you are running the engine backwards and therefore sending your oil away from the pickup under heavy acceleration. The GTO/Holden oil pan has the pickup in the front and is then preferable as you are sending the oil towards the pickup under heavy acceleration. I made this mistake on my initial 996 conversion and paid for it with a spun bearing. The crazy thing was, my engine had been removed from a GTO, so I had the right pan all along, but had gone with the corvette pan due to it’s higher placement, (and Renegades suggestion). I have made proper repairs and added a baffle kit from Improved racing. This is a track application and so far so good. just trying to save someone else from making my mistake.

[Smollet]

ForzaGilles said:

SRT Hellcat said:

one mans meat is another mans poison. Good luck with the project. Personally I would no sooner wish to put a V8 into the back of a 911 as I would a flat 6 into my 65 FIA Mustang

+1

+2

[unclemark123]

I finished my car earlier this year. Just returned from Spa & Zolder where the car performed very well. Some food for thought: its on par with a gt3rs 4.0 in a straight line. Handles just as well as before the conversion. Ran flawlessley and dead reliable. Makes an awsome noise to boot.
I may consider selling it next year.

[Todd Bonzalez]

Did you build yours Mark? Got a thread or anything? Would love to know more.

[unclemark123]

I did Todd. No build thread, but 1000s of photos and a wealth of information gained.