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L92 for project Q's

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Old Sep 23, 2018 | 07:26 AM
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ericspt's Avatar
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Default L92 for project Q's

I am doing an E46 conversion to an LS series motor and have been reading quite a bit on the L92. After reading through most of the threads I am still not 100 percent sure what exactly to get.

Is there an L92 recipe card by chance? I've seen those before for LS1's. For X power buy these parts.

I am looking for about 500-525 crank HP. This is a track only car so I'm not concerned about idle quality too much, it will spend nearly all of its time above 2500rpm.

Is there any difference if I buy an L92 or L94 and is there any differences in the motor's themselves? Are these all 58x wheels?

I know I need the new timing cover, new single bolt cam, and new intake, then a set of heads to hit that number.

Going price seems to be around $2,500 for an L92 from 07-10, any reason to buy a specific year, are newer models L94's instead of L92's and is there any reason to buy later?

Thanks
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Old Sep 23, 2018 | 10:10 AM
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L92 and l94 both have vvt while l94 has active fuel management also.
If you are going that route, delete the vvt and afm if getting l94.
Use a 3 bolt cam and single row timing set
Melling 10295 pump
Close off afm towers either with lingenfelter rivet tool or drill and tap
Id replace the double d pistons with flat tops
Use the TSP stage 3 cam
And let it rip

I recommend the stage 3 over a larger cam because youll still need some lower mid range around 2500-3500 or so like you said and going much larger will hurt that.

Thats it!
Running a car ls3 will be ok but a FAST102 will gain you the extra power you want on a track setup.

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Old Sep 23, 2018 | 11:52 AM
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Originally Posted by tech@WS6store
L92 and l94 both have vvt while l94 has active fuel management also.
If you are going that route, delete the vvt and afm if getting l94.
Use a 3 bolt cam and single row timing set
Melling 10295 pump
Close off afm towers either with lingenfelter rivet tool or drill and tap
Id replace the double d pistons with flat tops
Use the TSP stage 3 cam
And let it rip

I recommend the stage 3 over a larger cam because youll still need some lower mid range around 2500-3500 or so like you said and going much larger will hurt that.

Thats it!
Running a car ls3 will be ok but a FAST102 will gain you the extra power you want on a track setup.
Big deal not to replace the pistons? I know it bumps the compression a bit but couldn't I achieve the same with a slight deck of the heads?

I originally thought of using a Speartech harness but I do need an intake still. Saw these but found very little feedback.

Last edited by KCS; Sep 24, 2018 at 08:53 AM. Reason: Non Sponsor Link Removed
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Old Sep 23, 2018 | 06:47 PM
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tech@WS6store's Avatar
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Dont use the fitech and the speartech is pretty high i believe.
Id go with a factory computer and a current performance, painless performance, psi or similar harness and be done.

Not only do the flat tops help cr but youll also have a better flame front and travel and cleaner burn. Along with having brand new pistons and rings of course which wont hurt. our setups are very budget friendly.
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