Swap in TT engine in place of NA engine

[VRFury]

From what you posted, Rolland. The front frames are not different. The blocks will swap car to car, but the engine side mount is different on 1, maybe 2 points. So you need the mounts from the donor block to go into the new chassis, but the chassis side mounts are the same. Just a note: tranny mounts are different between ALL transmissions, although I don't know if you were changing that. I do not have a mix-and-match engine (as in NA with TT parts on it) but I do have an ATX DOHC, a MTX SOHC with a conversion to TT in process, and 2 5spd TT's, under my belt. So I have seen some, not all the differences, and my information is for the most part, not just read, but I have seen some of the pictures, differences, explanations here and other places, so not all of it is on my own personal cars.

[Tricky222]

Originally Posted by ProwlerGT

Ok 3 things.

1. Which of you responding have actually done this swap, witnessed it being done or even assisted in the swap process?

2. Which of you are going off of knowledge from others or readings?

3. I'm sure someone swapping to a TT engine would not care if NA parts work on the TT engine if it means a performance "DROP" and that said people responding (I thought would) should assume that I or my friend wouldn't want to put NA heads on a TT block if they do not FLOW as good as the TT heads do. So please if there's a performance drop or "strength issue" using NA parts on the TT engine setup I or my friend would not want to use those parts or know about it. When I ask what NA stuff can be used on the TT engine I'm asking about stuff that can move over without concern and with the intent that it will perform the same exact task the same way. If not then its of no use.

The main thing I was hoping to accomplish with this thread was really a "swap list" in LIST form, but I'm not even sure which of you guys is right vs wrong and while I'm inclined to believe some of you more than others there is still a lot of overlapping information here.

I have personally never done this and I'm not even doing it to my car. My main concern up front was that the frames on the TT vs NA are in fact different and I didn't think the TT block would mount up at all. The rest of the stuff ..... please let us know if you done this or if you are just reporting info you've read up on.

Do some searching and you can come up with your own info, my info is correct and im not sure what vrfury is even arguing about it me. He seems to just be covering himself with the things i have corrected for him. Yes i have done many of these swaps and just about anything else, so yea my information is correct. This info is coming from personal experiences and information read and told to me. But like i said, if you dont beleive me or want to know for sure, just do some searching on it and you'll find the exact same info i posted, but said by other people.

Originally Posted by VRFury

Yeah, fuck your mother, james. I did not argue that they do not have the ability to bolt up, I'm saying there is no point to it.

I have rebuilt both engines, and it doesn't take a rocket scientist to see they are VIRTUALLY the same. However, there seems to be almost no sense in doing this cost-wise. Yes, THE DOHC'S BOLT UP TO THE DOHC, N/A OR NOT. But if your doing one setup, there are certain parts that are necessary, you can't just bolt some of this and some of that and make it work. Just saying, "yeah that will work", is like saying you can bolt a caravan motor into this car. Sure it will bolt up, but try closing the hood over that huge intake.

So check your ego at the door. Trying to help so there isn't half-info being given to a good guy. Enough of us have gotten fucked by half-info, we don't need it in our own forum.

Hmm, swearing huh? The sure sign of a desperate man. My chemistry teacher once said that people swear/cuss because they cant think of anything better to say, which i think still holds true in this case.

But....Thank you for regurgitating information i posted in my first post, and i do agree that spreading misinformation is definitely NOT a good thing. But my info is correct(unless i've missed something browsing over what i posted, which is possible, but the info you've chosen to quote there isnt any). Soooooooooooo thanks for you input. This paragraph can also go along with you next post



Back to the OP. I thought i answered your list pretty well, but apparently not well enough. So, post up a list of all the questions you want answered again, and me and mr. fury can answer them im sure....

[maTT]

Ok 3 things.

1. Which of you responding have actually done this swap, witnessed it being done or even assisted in the swap process?

2. Which of you are going off of knowledge from others or readings?

3. I'm sure someone swapping to a TT engine would not care if NA parts work on the TT engine if it means a performance "DROP" and that said people responding (I thought would) should assume that I or my friend wouldn't want to put NA heads on a TT block if they do not FLOW as good as the TT heads do. So please if there's a performance drop or "strength issue" using NA parts on the TT engine setup I or my friend would not want to use those parts or know about it. When I ask what NA stuff can be used on the TT engine I'm asking about stuff that can move over without concern and with the intent that it will perform the same exact task the same way. If not then its of no use.

The main thing I was hoping to accomplish with this thread was really a "swap list" in LIST form, but I'm not even sure which of you guys is right vs wrong and while I'm inclined to believe some of you more than others there is still a lot of overlapping information here.

I have personally never done this and I'm not even doing it to my car. My main concern up front was that the frames on the TT vs NA are in fact different and I didn't think the TT block would mount up at all. The rest of the stuff ..... please let us know if you done this or if you are just reporting info you've read up on.

I've done more than I can count. I do them Monday-Friday 8:30-6pm. I agree with you that this thread is confusing. Feel free to call the shop and I can tell you everything you need to know.

[Jomojr]

My only input on this is that your best bet on budget and frustrations is to do the following.

Figure out which year of VR4 is going to best suit your needs: things like ECU, and wiring harness compatability....

Find a good cheap donor car keeping in mind the following. If your motor is healthy and is a DOHC, dont worry if the engine in it is running, unless you just HAVE to have the TT 8:1 motor. IMHO the NA 10:1 works just fine.

All the little brackets, mounts, clips, wiring and stuff will be right there for you to pull from your donor. Not to mention being able to physically see where some of the stuff goes.

After your all done you can sell off the parts you dont need, and greatly reduce the end cost of the conversion. That is not to say you wont need to purchase things like fuel control, help in the traction department "LSD", and other little stuff.

A healthy NA 10:1 DOHC can be boosted, and reliable as long as you do things right and get a good tune on it. That being said, if my motor ever goes, I will be dropping the compression down to 8 or 8.5 :1

Good luck on your project.

Hey MaTT.... I though I was being smart with my money...... who knew all TT Conversion drivers were cheap!