Good afternoon fellas. I'm a newbie to the g35. I recently acquired a G35 for a good price. However the owner blew the motor and bought a 2008 VQ35HR motor from a 2008 350z. I've recently found out this is not a perfect swap. My question is what route do I go from here. I've seen it's by far too much money to try and put this in. Do I sell it and get the proper motor or what should the next steps be?

Thanks for the help.

 

Sell and get the proper motor. Not worth the headache

 

Honestly I have no idea but you should be able to find info on it. I suspect the wiring harness is the same, ECM should work. Probably need reprogramming, it would definitely be easier to just sell the 35HR and get the right motor.

I've never even seen a VQ25HR.

 

Sorry that should say vq35hr

I looked at the serial number on the motor and it shows VQ35 but it doesn't list another number. How can I find out what motor this actually is before I actually sell it to find out it's the right motor.

 

Ok so exactly what vehicle DO YOU OWN. Obviously it's not a G25.

If you own a 2005 G35 like the header note says then your vehicle is equipped with a VQ35DE. In which case it's a fairly complicated swap to put in the VQ35HR motor, easier than a full powertrain swap like going to an LS motor but definitely not just a plug and play engine.

 

It was a typo I know what motor was supposed to be in it it should not read vq25. The guy I bought the car from said the motor should be the vq35hr. Did the DE ever come with dual intakes/throttle bodies? If that's the case then I definitely have the vq35hr

 

DE never came with the dual throttle bodies. Only the hr

 

Ok I was just asking to make sure you weren't overseas with a Skyline (sold in USDM as the G35) with the GT250 package which came with the VQ25HR motor.

The HR was pretty unmistakable because of the dual throttle bodies, if your vehicle has the HR swap already that's awesome, it's a better motor in nearly every aspect.

 

It didnt come already swapped. It came as a shell with the HR needing to be put in. It's a fully assembled motor with wore harness and everything just doesnt have the nissan cover. So to clarify so there is no confusion. I bought a 2005 G35 coupe rolling chassis. The owner also had a 2008 350 a Vq35hr motor that he threw in with the car. It's a complete motor wire harness and every and an ecu. Is this a simple swap since I have the full wire harness and ecu or is it still just as hard to finish?

Sorry if I am confusing people with typos and not knowing exactly what I got myself into.

 

It's still gonna be quite a bit of work, Nats won't work with that ecu so you'll need a tune, you'll need the P/S rack as well. Ac lines won't line up so that would have to be rectified as well.

 

You can buy a conversion harness to make it simple.

https://guilty-garage.com/product/pn...-harness-copy/

The hard part is making all accessories work like eazdaskeez said above. Also make sure you have the HR transmission, the DE and HR have different bell house bolt patterns. I thought about doing the HR conversion to my 05' turbo sedan but would be better off and cheaper to sell it and buy a HR car.

 

That's where I'm at right now. I can get an hr trans for 300 bucks plus the wore harness or I can get the whole de motor for 400. Is the hr that much better of a motor that it would warrant spending 1000 plus to get it running right or would i be better off putting extra money in the de?

 

Only if you're wanting to build more than about 600 whp, anything past that the DE takes pretty considerable work and longevity will always be an issue.

If this is just a daily or weekend driver that you plan on putting a couple mild bolt-ons then DEFINITELY throw another DE motor in.

However, if your car was factory equipped with the 6MT then you need to find the "rev-up" version of the DE motor which is significantly more rare and usually more expensive. If you have the automatic transmission factory equipped then it takes the regular DE motor, you can google search the differences, they're really easy to identify by the cam actuators, the rev-up is very different looking.