Nissan 370Z Forum - View Single Post

Slidefox · 11-12-2008, 01:19 PM

So, lately we have been seeing a lot of noobs coming on to the forum; asking the same questions over and over. As much as we love to flame them and tell them to use the damn search; they are still noobs. So I felt I would take it upon myself to write-up some info for everyone to read, and hopefully it will alleviate more “Which turbo kit is better” threads, and “I’m thinking of going F/I and I need some help” threads. If anyone sees something that needs to be changed please let me know. Thanks!

The Motors:

VQ35DE:

The VQ35DE motors as already been proven to be a pretty stout motor. A Stock motors with any type of forced induction is usually good to around 400-420whp, before you run into longevity issues. The week link in the VQ35DE motors is the stock connecting rods. I have seen people bend them trying to make over 420+whp for an extended period of time. Now granted, there are people that have made more power with the stock rods, but as I said.... you start running into the "How long is it going to last" questions.

The stock crank and stock sleeves have already been proven to handle 900+hp. Again, longevity and reliability are the two main points here. There is one company making 700+whp on the stock sleeves and stock crank for a very longtime now and the motor is still holding strong. Some people prefer to "Sleeve" there blocks. This is an added precaution to make sure the block last longer. Sleeves will allow you to run higher boost, and make more power reliably. If you choose to sleeve your block, do you homework and make sure you have a experienced machine shop do the work.

The stock VQ heads and cams are a thing of beauty. They flow great, and people still use them, un-altered, and are making over 700whp. There are companies out there that make a great alternative for cams. Brian Crower, JWT, Tomei, HKS just to name a few. Cams in the area of a 264 degree cam are what most people will upgrade to. Companies do make 272's, 268's, and even 280's, but the higher lobe duration you get, you will get a rougher idle.

VQ35HR:

With the success of the VQ35DE motor, Nissan decided to take the VQ motor one step further. Introducing the VQ35HR... a near identical 3.5L V6 to the DE platform, but with dual throttle bodies, beefier internals, and better engine components. The HR can easily make 450whp on a stock motor; something the DE can never amount to too (For a long period of time). If your hopes where to install a turbo kit, and some other goodies and have a 450-500whp daily monster... the HR is your platform of choice.

Nissan heard our cries of failing connecting rods of the DE platform, and gave us a much beefier setup to use. The heads were also slightly re-worked to get a few extra HP out of the HR. The limits of the stock HR motor have yet to be found. The only reason being is... a lot was learned from it's little DE brother. With the only option for F/I being Twin Turbo kits, F/I'd VQ35HR's are still fairly rare. If I had to guess... I would assume 550-575whp is going to be the failing point of the HR. Which is far beyond the capabilities of the DE.

For the brave souls out there who want to TT there HR; GTM, AAM, HKS, and Greddy have what you need.

I will be following this post with information on all the turbo kits available as well as info on fuel management options and accessories for forced induction.

11-12-2008, 01:19 PM	#1 (permalink)
Slidefox Previous Moderator Join Date: Nov 2008 Location: Arizona Posts: 1,534 Drives: A Pony Rep Power: 213	Forced Induction for Noobs... So, lately we have been seeing a lot of noobs coming on to the forum; asking the same questions over and over. As much as we love to flame them and tell them to use the damn search; they are still noobs. So I felt I would take it upon myself to write-up some info for everyone to read, and hopefully it will alleviate more “Which turbo kit is better” threads, and “I’m thinking of going F/I and I need some help” threads. If anyone sees something that needs to be changed please let me know. Thanks! The Motors: VQ35DE: The VQ35DE motors as already been proven to be a pretty stout motor. A Stock motors with any type of forced induction is usually good to around 400-420whp, before you run into longevity issues. The week link in the VQ35DE motors is the stock connecting rods. I have seen people bend them trying to make over 420+whp for an extended period of time. Now granted, there are people that have made more power with the stock rods, but as I said.... you start running into the "How long is it going to last" questions. The stock crank and stock sleeves have already been proven to handle 900+hp. Again, longevity and reliability are the two main points here. There is one company making 700+whp on the stock sleeves and stock crank for a very longtime now and the motor is still holding strong. Some people prefer to "Sleeve" there blocks. This is an added precaution to make sure the block last longer. Sleeves will allow you to run higher boost, and make more power reliably. If you choose to sleeve your block, do you homework and make sure you have a experienced machine shop do the work. The stock VQ heads and cams are a thing of beauty. They flow great, and people still use them, un-altered, and are making over 700whp. There are companies out there that make a great alternative for cams. Brian Crower, JWT, Tomei, HKS just to name a few. Cams in the area of a 264 degree cam are what most people will upgrade to. Companies do make 272's, 268's, and even 280's, but the higher lobe duration you get, you will get a rougher idle. VQ35HR: With the success of the VQ35DE motor, Nissan decided to take the VQ motor one step further. Introducing the VQ35HR... a near identical 3.5L V6 to the DE platform, but with dual throttle bodies, beefier internals, and better engine components. The HR can easily make 450whp on a stock motor; something the DE can never amount to too (For a long period of time). If your hopes where to install a turbo kit, and some other goodies and have a 450-500whp daily monster... the HR is your platform of choice. Nissan heard our cries of failing connecting rods of the DE platform, and gave us a much beefier setup to use. The heads were also slightly re-worked to get a few extra HP out of the HR. The limits of the stock HR motor have yet to be found. The only reason being is... a lot was learned from it's little DE brother. With the only option for F/I being Twin Turbo kits, F/I'd VQ35HR's are still fairly rare. If I had to guess... I would assume 550-575whp is going to be the failing point of the HR. Which is far beyond the capabilities of the DE. For the brave souls out there who want to TT there HR; GTM, AAM, HKS, and Greddy have what you need. I will be following this post with information on all the turbo kits available as well as info on fuel management options and accessories for forced induction. __________________ Forum Rules: Click Here Before Posting Click Here to Become a Premium Member Go Turbo or Go Home!!//Cowboys 2012 Superbowl Champs// Suns 2012 NBA Champions Last edited by Slidefox; 01-26-2009 at 11:56 PM.