Considering doing an engine and tranny swap from factory to an 07 or 08 3.5 liter and accompanying transmission. Anyone done this? Or anyone know of a better swap?

 

The trans can be done but the engine? Multiple differences between the J35A3 and the J35Z2.. Also the 2007 Accord uses a J30A5 which is less powerful than our own J32 and J35.

 

I knew the accord had a smaller engine. Which is why I was considering the 07/08 tl type s 3.5 liter

 

Found this after I posted. This I what I wondering about

 

Yeah the engines are very different either from the 07-08 TL Type-S and Accord V6, specially because both run on Drive by Wire tech and the block is different.

The J35A3 can be used as is plug & play or in 2 other configurations:
J35A3 block + J32A2 Heads = 3.5 Type-S engine
J35A3 block + Bored out + 3.7 pistons + J35A2 Heads = 3.7 Type-S engine
You can also use the entire J35A3 engine and swap in the 3.5 cams from the 3G TL-S for the same result as a Type-S engine.

Notice how all those builds uses the older A3 block because is the same thing than our J32A1/2 block so it fits like a glove in our engine bay with no mods...

 

And then what would be the recommended tranny to swap in with?

 

Accord V6 2006-2007 is plug & play with some minor swap in parts from your current transmission.

 

And the j35a3 is the 01-02 Acura mdx engine?

 

Yes and 2004-2007 SATURN VUE too.

 

Once again doing more reading


If I'm reading what your saying there right, no milling is needed?

 

No milling is required but it is highly recommended to get maximum performance, If you stick the heads of the J32A2 and the J35 Block + pistons you will get a lower compression than the J32A2.

 

How much milling are we talking? Millimeters I'm assuming. How would that effect adding forced intake in the future?

 

J35A3 Bored 1mm to (from 89mm bore to 90mm bore) 3.7 rods, crank, pistons, either J35A3 heads or J32A2 heads with either J35a8 cams, J37A1 mdx/zdx cams or custom regrinds. This will be a true 3.7. If you dont bore it to 90mm you will have nothing larger than a 3.6. No block deck milling is required, but is optional to raise the compression slightly.

 

And milling the block head won't negatively impacted anything such as a turbo in the future?

 

This thread is about exactly what I've been thinking of doing to my 99 TL. I've read threads about engine swaps and threads about transmission swaps, but why not do both at once?
I'm thinking about swapping a 2007 Honda Odyssey engine + trans into my '99 TL-P. I've even considered buying a wrecked '07 Odyssey, MDX, or Saturn Vue so that I can get every part I need for the swap e.g. ECM, wiring harnesses, and accessories. I believe the Odyssey has the same trans as the '07 Honda Accord.
One difference between the Odyssey and MDX engines compared to the J32a1/2 engines is the intake manifold spacer. The spacer would need to be removed for hood clearance.

 

You wont want to mill it if you are going turbo. You will want a lower compression ratio with boost on these engines.

 

And to lower the engine compression I'd have to use an aftermarket ecu?

 

I would not machine the block unless it is out of spec for deck height. You may find that the piston heights are above the block deck already at TDC.

 

You get aftermarket pistons if you want to lower it. Machining the Deck height will raise compression. You dont want to do that for boost. Leave it stock.

 

I have my block decked (beyond factory service limits) and my heads machined running all 3.7 internals and cams from the MDX (3.7) without any clearance issues. You wont have any issues as long as you dont go big and deck it a lot. Also, Its not so much that you will have height issues at TDC as much as you will have timing issues. There is no way to adjust stock timing in small increments to make up for it.

 

So I've found a j35a3 that comes with everything but the starter, alternator, power steering pump, ac condenser for $980 shipped with 56k miles, is that reasonable? And then are those four parts transferable from my j32 or should I buy new?

 

What would need to be done to correct timing issues?

 

That's ridiculous for a J35A3. Search Car-part.com, you can find them for less than $500 easily.

& yes all those parts are transferable from your J32

 

Got my J35A3 for under $400 delivered with just over 100K on it.

If you drop 2G type S cam in the J35A3 heads then milling to .020" that will bring you back to J32A2 compression of 10.5:1 (milling .030" brings it to 10.75:1).

 

Was searching the forums for a couple different things, I need a new transmission for my 03 TL type s and was looking at threads on intake manifolds to improve performance and got to thinking. To do the cl 6 spd through research it's been determined that I would buy the cl motor as a package to do the swap. If I'm going to be spending $500-1000 for a motor that's included in a $2-3000 cl swap why not upgrade the motor at the same time. Saw the thread before this one about the guy going from a jag to an acura and thought I'd ask instead of opening a new thread. Should I buy a j35a3 motor and find the 6 spd separate? Would I still need the cl wiring harness and different cams like I would using my TL motor? Then keep my motor and use the mdx block and my heads. Not sure I would bore my heads, would most likely cost more and my main concern was fixing the transmission. Just can't justify putting another auto in.

If I have to fix my transmission and was planning on the cl swap wouldn't it make more sense to swap motors too and improve performance especially if the mdx motor is a lot cheaper than the cl? Or having no mechanical skills should I just focus on the CL swap?

 

I dont know if your still on here bit i got 10,000 for a build i want to build this motor you talk about just need with turbo wondering if you can help with identifying exact part pleaze

 

Are you still on this forum

 

So im going for the 3.7 he mentions above j35a3 block bored 90mm traum low comp pistons tho as i am doing it turbo j37 mdx guts as he said, its going in a 2000 tl, my question is what trans ecu eng harness and intake should i use, also what about all the sensors brackets pulleys and pumps do i use i understand everything he has said so far if i can get this info im good, id really like one of you 2 to give the info as from what i see you to know this info for sure

 

you'd be better off trying to pm a specific member than giving a shout out on a 2g forum. not many of the O.G.'s come by here, except moderators. unless you're trying something crazy like a 3g tl harness, ecu & dash conversion use whatever harness & sensors you have for the current motor. build the block and heads however you want and get a tunable ecu for best results. research some old threads for ideas. good luck.

 

I am researching right here i like his idea which i why i asked a specific 2 im in a 2g forum if i wanted to tlk about my 3rd gen id join that forum so thanks for the reply but ill didnt need it if thats your info if you didnt know couldve just stay out of it oh and nuthing special at all about 3rd gen i know i got one 2nd gen is way better

 

619rcr gave you reliable reality based information about the 2G TL forum, Aptimmy. It's just not what you wanted to hear!

Here's another news flash, if you even bothered to check. fsttyms1 has not posted since 28May2020 and has not logged on since 30Oct2020.

Skirmich hangs out in the 1G (01-06) & 2G (07-13) MDX forum and his last post over there was 15June2021. His last login to the forum was 01Nov2021, soooooo, if you are lucky, you may be able to get ahold of him to siphon his brain for the info. you seek, over there.

As mentioned above, Good Luck!

 

It wasnt reliable info as he didnt even bother checking to see that they are both moderaters 1, and 2 he mentions swapping in 3rd gen parts which means he doesnt know the a3 isnt a 3rd gen block, but as for the other info i have seen he hasnt been on since 2020 so i knew it was a long stretch i really dont get the self importancr in people responding to a post if they arent answering it and throwing in 2 cents about nohing

 

But thanks for the info on skirmich and i will check that out

 

I'm not sure what you're trying to say here. FWIW, the J35A3 has the same transmission mount as the early 3G TLs, however, it also has heads which match up with the 2G TL plumbing.

 

No thats the a5 the a3 is from a 2001 2002 acura mdx and according to both moders i mentioned it drops in with identicle trans mount a j32a2 which is 2g by the way am i the only one who read this forum

 

Honestly shoez i thaught skirmich taught you that already i did see you nonsense on the 3.5 conversion thread and you clearly have no knowledge on this subject

 

the only reason i mentioned 3gtl harness and dash is because it allows use of hondata. It has been installed on a 6g accord running a turbo j35a8 and later j37. congrats on joining a great forum where you will get minimal support from that attitude.

https://youtu.be/7ivSjIKExug

 

I get what your saying and i bet you would know about minimal support walking around like you know everthing but couldnt scroll and read cause i did say j35a3 and im on a forum where the moderater you didnt know was a moderatee talks about this build and then reply to someone asking about this build with some nonsense like uhh yea jus grab it and mix it until it works thats great advice bud

 

Sorry, I don't know where you're getting your information, but the J35A3 is a direct drop in for a 2G TL. I cannot say it any plainer than that, so stop being a dick.

 

You are directly an idiot you are now saying the opposite thing you just said it wont bolt on now your saying it will go be an troll somewere else learn to read bud and go read your last post you said it wont bolt on to the trans and i corrected you then you attempt to reiderate your own words lol your are the def of a troll, oh and by the way a dick would reply to a post with no value of info just to feel like there doing something lolcase in point uhhhhh you