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Old December 16th, 2008, 10:00 AM   #1
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The J36......

Time for a new build thread so I thought it should be something new

The formula for this engine will be the following.

J30A4 heads, ported
07 TL-S cams
ported intake runners and intake
J32A3 block
J37 forged crank
J37 forged rods
05 RL forged pistons and rings
J37 OE bearings
J32A3 gaskets

LOL, is that spelled out well enough for you Siggy

Anyway the end result will be a 3.6L engine with 89MM bore X 96MM stroke and 10.5:1 compression with factory forged internals. Again these forgings were primarily done by Honda for weight reduction, but also provide some additional stregnth over cast parts. The increased stroke should give another nice little bump to the tourqe.

*Warning, do not even think about putting this engine in a AT vehicle, the 3.5L I had in my own car destroyed 2 trannies in the space of 6 mths, when I pulled apart the first one all the the clutch frictions were cracked.






More Pics of the assembly to come.
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Old December 16th, 2008, 10:17 AM   #2
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Parts look CLEAN!!

I was just wondering wouldn't the RL pistons on a 3.6 setup bump the CR past 11.0 like 11.1 or something along those lines since the 3.5 with those pistons would have a CR of 11.0, or is there something else that you changed that I missed?
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Old December 16th, 2008, 10:20 AM   #3
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The mesured out compression height is the same as a CL-S (J32A2) when you take the stroke, rod legnth and pin to crown height.
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Old December 16th, 2008, 10:24 AM   #4
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another nice build in the works i see..
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Old December 16th, 2008, 10:30 AM   #5
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Quote:
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The mesured out compression height is the same as a CL-S (J32A2) when you take the stroke, rod legnth and pin to crown height.
Just going off you measurements here, but would the these identical heights/lengths be the same for the RL? If so then I would assumer that the CR would remain around 11.0 possibly a schosh lower if the piston volume is higher, but how does it drop to 10.5 if we increase cylinder volume?
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Old December 16th, 2008, 10:35 AM   #6
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so what's the total cost of the build, hp gains and can or how much does the stock 6spd tranny take hp wise? also how do you or can you use the stock ecu on the 6spd? if so do you need to tune it and how?
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Old December 16th, 2008, 10:41 AM   #7
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wow - another cool build

so many options when it comes to building engines, maybe we can list all the different builds in a chart, with a listing of it's internals, the pros and cons of each and if possible what kind of HP/TQ each can potentially create
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Old December 16th, 2008, 11:05 AM   #8
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Just going off you measurements here, but would the these identical heights/lengths be the same for the RL? If so then I would assumer that the CR would remain around 11.0 possibly a schosh lower if the piston volume is higher, but how does it drop to 10.5 if we increase cylinder volume?
Final wrist pin height in the cylinder is a bit lower (.058") than on the RL.
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Old December 16th, 2008, 11:12 AM   #9
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so what's the total cost of the build, hp gains and can or how much does the stock 6spd tranny take hp wise? also how do you or can you use the stock ecu on the 6spd? if so do you need to tune it and how?
Price depends on the cost of parts, but this is pretty much the same cost as a J35 build, maybe $100 more for the pistons over the old CL-S ones.

As far as output I expect to see maybe anoth 10-20WTQ and 10WHP over a J35. As for tuning, the stock ECU will run it with bumping the fuel pressure, but I see another FIC in the future to really get the potential out of it.

As for the tranny, as long as you stick with the stock dual mass flywheel it is probably good for up to 500WHP, now if you go with the solid CM flywheel and lose the shock absobtion the dual mass gives you, maybe 300-400. Looking back to what happenede to one of the other members (forget who) about a year ago the major reason his clutch failed in my option was he used the solid CM flywheel with a solid spec clutch disc, there was nothing to absorb the shock of clutch engaugment.
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Old December 16th, 2008, 11:16 AM   #10
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this is all new to me, the honda scene, so im eagerly going to be following this build.

good luck, and thanks for the thread.
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Old December 16th, 2008, 11:46 AM   #11
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Adam's?
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Old December 16th, 2008, 12:15 PM   #12
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who's build?
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Old December 16th, 2008, 12:15 PM   #13
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Adam's?
Nope, still haven't gotten his castings back from him painting them.
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Old December 16th, 2008, 12:41 PM   #14
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yes! That black doesn't look bad...
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Old December 16th, 2008, 01:21 PM   #15
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I have a intake manifold in black already ported

im really trying to sell.
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Old December 16th, 2008, 01:31 PM   #16
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who's build?
He knows the thread is here and will chime in if he wants
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Old December 16th, 2008, 01:31 PM   #17
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I have a intake manifold in black already ported

im really trying to sell.
Sorry, already ported and powder coated his.
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Old December 16th, 2008, 01:35 PM   #18
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Looks interesting indeed. I may have to trade in our car for a v6 next year so I can get on one of these builds!
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Old December 16th, 2008, 01:39 PM   #19
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I want those bearings in the picture.
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Old December 16th, 2008, 02:02 PM   #20
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Originally Posted by NVA-AV6 View Post
Price depends on the cost of parts, but this is pretty much the same cost as a J35 build, maybe $100 more for the pistons over the old CL-S ones.

As far as output I expect to see maybe anoth 10-20WTQ and 10WHP over a J35. As for tuning, the stock ECU will run it with bumping the fuel pressure, but I see another FIC in the future to really get the potential out of it.

As for the tranny, as long as you stick with the stock dual mass flywheel it is probably good for up to 500WHP, now if you go with the solid CM flywheel and lose the shock absobtion the dual mass gives you, maybe 300-400. Looking back to what happenede to one of the other members (forget who) about a year ago the major reason his clutch failed in my option was he used the solid CM flywheel with a solid spec clutch disc, there was nothing to absorb the shock of clutch engaugment.
sorry I didn't follow the j35 build so I don't know the price or hp you mentioned, can you give ball park #'s as far as cost and hp gains. Too lazy to dig up the thread.
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Old December 16th, 2008, 02:16 PM   #21
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Updates....

Rotating assembly is together and I forgot to mention that it is balanced, I balance the rod and piston assemblies here, then send them out with the crank for full balancing, from the factory they are pretty damn close and only need minor work to bring it all together.




The bob weights on the crank come real close to the piston skirts but clear nicely, I think Honda is about at full stroke with this block design at 96MM, they may be able to squeeze out another couple MM, but it's already pretty damn tight.



Piston to deck height is -.033", in comparison the J32A2 is at -.028", but the RL piston has a larger crown so the compression will end up right around 10.5:1


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Old December 16th, 2008, 02:18 PM   #22
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I want those bearings in the picture.
Too late, already installed
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Old December 16th, 2008, 02:19 PM   #23
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sorry I didn't follow the j35 build so I don't know the price or hp you mentioned, can you give ball park #'s as far as cost and hp gains. Too lazy to dig up the thread.
Typical J35/J36 build is in the $4.5K-$5K range depending on options, this is including new block,crank, rods, pistons, rings, bearings, timing set,gaskets, P&P heads/intake, rebuilding the heads, TL-S cams.
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Old December 16th, 2008, 02:28 PM   #24
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Too late, already installed
Guess I'll be waiting till January 3rd.
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Old December 16th, 2008, 02:32 PM   #25
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looks great paul! =)
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Old December 16th, 2008, 02:40 PM   #26
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another amazing build paul!
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Old December 16th, 2008, 02:52 PM   #27
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I need a menu

engine type (j30a4 or so)

what can be done (inteernals combo)

cost per build (price)

hp gains (whp/tq)

Pros and con of builds
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Old December 16th, 2008, 03:30 PM   #28
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The cost are all with a few hundred of each other. You will be right around 5k for the 3.6 and around 6k if you get a LSD and a AEM FIC.
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Old December 16th, 2008, 03:47 PM   #29
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Im pretty curious about the pricing for a 6 spd swap and j37 swap with LSD and AEM FIC?
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Old December 16th, 2008, 04:14 PM   #30
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Im pretty curious about the pricing for a 6 spd swap and j37 swap with LSD and AEM FIC?
Depending on how good you get the tranny and other 6sp swap parts for somewhere between $9K-$10K, Oh, and you can not boost a J37 build, you have to bore the cylinders 1mm over to get the 90mm bore for the 37 pistons, with the 36 you are still good for up to 10psi.
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