Jump to content
View in the app

A better way to browse. Learn more.

300ZX Owners Club

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (โ‹ฎ) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Hi I'm looking for some pictures of a ported 40p tt head preferably the exhaust side. I have Google searched and come up with a lot of mixed results so want some actual club ported heads which I can reference too.

ย 

My main concern is how much of the "hump" in the exhaust port where the valve guide comes through. Can it be completly blended flush or is it wise just to fettle around it??

ย 

I don't just want to hog out the material and reduce velocity

Featured Replies

  • Author

I bet he does but didn't want to take the micky and ask him as it's what he does for a living. Jim has been very helpful so far and I don't want to take the piss, so to speak

These links are from the Project 300ZX originally published in the Sport Compact Car magazine and cover

amonst other things porting the VG30DETT.

ย 

http://www.motoiq.com/MagazineArticles/ID/1508/Engine-Tech-Building-the-Nissan-VG30DETT-part-1.aspx

ย 

http://www.motoiq.com/MagazineArticles/ID/1672/Engine-Tech-Building-the-Nissan-VG30DETT-part-2.aspx

Project 1547 - Out of the Blue

She's so fine, there's no tellin' where the money went - Simply irresistible.

  • Author

Now there are some good links. I have been searching for days trying to find compairable types of porting on the 40p heads. There are a lot of variations.

It was that hump in the exhaust port I was worried about. It is going to be removed now.

ย 

Thanks guys

ย 

I found that really interesting. Mainly the turbo outlet pipes as I also have tubular manifolds (petroof) but the turbo outlets are a nightmare to get anything that fits. It's probably the weakest point of my setup due to the pipes having to be a bit small due to the space. Kind of need some pipes making up really

Membership No 0780

INSURANCE GOOFA

Datascan, Conzult, ECUTalk and a few others

I have all the rare bits you can't find :tongue::tongue:

ย 

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

Recently Browsing 0

  • No registered users viewing this page.

Important Information

Terms of Use

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions โ†’ Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.