from manual '01 3.5 to auto 3.5 conversion?!

[vq35]

This place is very informative and i wondered if i could resolve this burning question. I know that the auto 3.5 generates less hp (240bhp) but more torque (265) than the manual (of 250 250 split). I want to convert my manual to this (ecu, cams, etc) and want to know if this is feasible as I plan on a major tune up at my 160km interval (spark plugs, gaskets, filters, redline etc etc)??? Any information on this would be greatly appreciated along with cost, contact etc .. thank you in advance

[Axelpkt]

Not exactly sure why you would want to. I personally love the 5spd with the 3.5 over the auto. But yeah anything is possible with enough time and money. ou would probably be better off selling your truck just picking up an auto, just my 2 cents.

[Lars]

+1 on the sell yours and buy an auto. It will cost you less in both time and hassle.

[KoukiS14]

Man. . I'd love a manual VQ. I can give you my engine and auto transmission, will that work?

you can do it though. . I've known several people to convert their cars the other way (to manual) and it doesn't seem that tough. Don't see why going back to auto would be any different.

[vq35]

This place is very informative and i wondered if i could resolve this burning question. I know that the auto 3.5 generates less hp (240bhp) but more torque (265) than the manual (of 250 250 split). I want to convert my manual to this (ecu, cams, etc) and want to know if this is feasible as I plan on a major tune up at my 160km interval (spark plugs, gaskets, filters, redline etc etc)??? Any information on this would be greatly appreciated along with cost, contact etc .. thank you in advance

Hi,thank you for your responce however I think I totally misguided everyone with my in inaccurate question - let me try again - I want to retain my manual transmission/engine and convert my current engine into that of the auto transmission engine which has better torque (probably due to compensate for the auto sapping the power available when compared to the lighter manual) - I was thinking that the difference in the 2 engines (how the auto engine produces more torq than the manual) is due to different programming and maybe cams etc etc - so, I simply want to switch ecu, cams/whatever else is different maybe, and since I will be doing my 160k tune up, I thought it would be a good time to do this. So again, my objective is to give my engine the same characteristics as that of the auto.Thanks and sorry for the confusion!!!

[KoukiS14]

OHHHHHHHHHH!!!!!!!!!!!Well okay then

I don't see why not. . but if you use the ECU from an auto vehicle, the check engine light will remain lit as it will be looking for a transmission (aren't we all. . . ugh. . okay not really). At least, this is how it went down on my friend's 240sx when she converted to manual from auto, retaining the auto ECU.

Easy fix: remove the bulb from the check engine light.... that's how I fixed my evap canister problem on my 240sx.

[tmorgan4]

If you're going through the hassle of replacing all those parts, you might as well go for aftermarket stuff that will give you a lot bigger than than "auto" OEM parts. I'd be really surprised if there's actually any differences internally in the engine from the auto to a manual.

Look at 350Z parts. It's same engine with minor differences. I've never looked, but I know there are lots of aftermarket parts available.

[Issac]

Jim Wolfe Tech. out of La Mesa CA, makes a nice intake and Cams for the Pathfinder I believe. They were helpful for me. And a Cat back might help too. Those are reasonable and effective and will for sure get you 20hp and maybe more.

[vq35]

If you're going through the hassle of replacing all those parts, you might as well go for aftermarket stuff that will give you a lot bigger than than "auto" OEM parts. I'd be really surprised if there's actually any differences internally in the engine from the auto to a manual.

Look at 350Z parts. It's same engine with minor differences. I've never looked, but I know there are lots of aftermarket parts available.

Agreed but this would entail some sort of compromise and I am not willing to go further than intake and cat back exhaust for the summer in terms of mods. I want to keep it as stock as possible and want to have easy access to 'known' remedies in case something goes out of whack!!?? I would be more than satisfied with a 265 torq rating (compared to 250) and with the addition of intake and exhaust methinks 275 (torq) is feasible/realistic while keeping to factory specs. I break loose with what i have now and 25 more torq should be more than ample (especially since the sound from intake and exhaust would yield wicked sound!)So, what exactly is the difference between the two engines so I can try n duplicate it??

thanx

[vq35]

Well, I guess no one really knows the difference/way to duplicate this so I will try to pry it out of some service tech at a nissan dealership and i will update anyone interested in the conversion ......

thanks

[vq35]

Well, I guess no one really knows the difference/way to duplicate this so I will try to pry it out of some service tech at a nissan dealership and i will update anyone interested in the conversion ......

thanks

Ok RESULTS are as follows-called random nissan dealership and apparently the 'service advisor' told me that its mainly hype (the difference between the two engines, in cluding the towing difference of 1500 between the two engines) and with this 'suggestion' he said it would make it a big waste of time - the real tech (unavailable at the time), he said, would agree and there was no money in it for them so to basically **** off (i guess i didnt sound stupid enough for them to make money off of) sooooooo, i guess i will try another dealership, this time just walk in and find a tech and try to pry it outta him next.......results of that transaction - stay posted for the next stealership expo

[vq35]

Ok, so through another posting i found out that the diff is actually the power valves - and that i dont have them (hence the torq deficit) but the bebfit i guess is that i have a less complicated set up which should last longer - i will now speak to a shop about a custom exhaust to start and a KN FILTER cone and i will post some pix of b4 abd after for those interested