[Vrroom]

Wow . . . thanks for all the great information everyone. This will take a little while to go through all the info and make a decision. I appreciate the advice and links! Thanks!

 

[Vrroom]

Hi Vroom came across this on ebay you are in the States so I thought it may be of interest

http://www.ebay.co.uk/itm/OBX-Large-Por ... 5180363858

Thanks Diveratt! Okay. It looks like I can get my hands on an SEM from SEM . . . and now there's this OBX listed here on eBay. Which one should I get do you think? Are there any compatibility issues I should be worried about? I had mentioned at one time that APR had trouble with the intake manifold upgrade . . . I was mistaking that for their upgraded throttle body. So my mistake there. I'm getting the impression I should have no worries about just swapping out the intake manifold while using the OEM throttle body, right? And . . . what's this large port, small port distinction? What's my 1.8t Mk1 TT have? Sorry for all the questions, but there are just many things I have no clue about (and not just with TT's! ) Any and all help welcome! Thanks!

 

[Vrroom]

A lot of those intakes on those lists are not available now. The SEM has the best flow of them all you can't really beat it imho

Thanks Frakay! If I can get the SEM from the manufacturer, I should go for it instead of the OBX? The SEM is more than twice the OBX price, but I assume you get what you pay for.

 

[Vrroom]

A lot of those intakes on those lists are not available now. The SEM has the best flow of them all you can't really beat it imho

Thanks Frakay! If I can get the SEM from the manufacturer, I should go for it instead of the OBX? The SEM is more than twice the OBX price, but I assume you get what you pay for.

The OBX can suffer from poor manufacturing and can have poor fitment. You can end up spending just as much fudging it to get it to fit than you would buying an SEM which is guaranteed to. If you were to buy an SEM contact 034 Motorsport and speak to Ken, he will be able to give the best price on them.

The OBX is a copy of the Ross which is not produced anymore. In terms of the design it was better than the standard inlet. As you are in the US you could take the risk as the design is sound, but the quality might not be there. I would ask their return policy first.

If you do get one though make sure you post up the details as no-one has ever taken the risk getting one sent from across the pond as if it was sh*t you would be lumbered with it.

As you said you get what you pay for, but if you have a standard turbo in the car it might be a perfect instead of paying the extra for an SEM which might be overkill.

My comments about the OBX are just from what I have researched from them but have not seen one in the flesh.

Go on buy one and let's have a show and tell

Ha! Thanks Frakay . . . that made me laugh. Yes, I have made some experimental purchases (at least that's what I call those things sitting in my garage now :lol: ), but I think I'll hold off on the OBX. You've scared me off. I think I need to go the SEM route . . . and I'm ready to. I have a GT 2871r as part of my APR stage 3+ . . .where does that compare on the range of turbo's . . . will the SEM be overkill for that? Or help it be taken advantage of. Should I up the throttle-body, or is there any risk there with drivability? I've got a car that running nicely now . . . but from everything I've read, I'm choking it with the OEM intake manifold. So, if I do change something, I don't want to be adding unnecessary uncertainty of it running. I really appreciate your help! My race shop's nearly 3 hours away . . . but my local Audi dealership said they'd put in a new intake manifold for me. Basically my race shop doesn't want to make any more changes at this point because the car's driving so well (it's because I'm so far away, so adjustments aren't easy after an install).

 

[Vrroom]

Well I would go SEM but I would say that as I have one.

If you have a GT28 APR stage 3 then you are all set up and it would frankly be rude not to get an SEM.

You will most likely want to scale your throttlebody to a 70mm and this will need a tweak to your map to compensate the scale.

I think you will have to take it to your race shop if they mapped your GT28

Okay! Thanks Frakay! That does make it a different project for me . . . have to wait until I take a trip to the race shop (I live in a rural area hours away from any major city with tuning shops). One last question please . . . Do you think I could temporarily just do the SEM IM without changing throttle body and get away with no remapping (just until I can get it up to the race shop)?

 

[Vrroom]

Yeah sure - By the looks of things you are a bit handy with the metalwork so just make a plate for your standard TB and it will run no problem at all

Thanks Frakay! I appreciate the help and advice. And thanks for the compliment.

 

[Vrroom]

haha - I am back reading jetcar again looking at your mods

You have done loads of work on your engine!.... See you have a spec clutch and flywheel. Quick question is yours noisy?

Yes, when in neutral and the clutch is out, it sounds like a diesel truck! However, when engaged or when clutch is in when idling, there's no noise at all . The shop warned me when we were selecting options. Dual mass flywheel (OEM) is quiet but spongy in response. Single mass steel flywheel is noisy but you get a hard, fast response. The other selection was what material to use. Steel single mass has more weight and more centrifugal force, so the engine doesn't suddenly back off RPM when shifting . . . so for regular street driving, it's more drivable. The aluminum single mass flywheel is lighter, but apparently takes some getting used to in shifting (I think it provides faster shifting response as well) . . . and it's supposedly even noisier than the steel. The noise is a clattering sound when idling with the clutch out. I know of no noise from the clutch.

I actually don't mind the "noise" . . . it's part of my engine's character.

Incidentally, I'm not a mechanic, so all this is what was relayed to me by the race shop who did the install . If I've misunderstood and gotten it wrong , please someone correct me.

 

[Vrroom]

The sound of a finely tuned mean machine!

Did you get steel or aluminium?

 

[Vrroom]

Got an aluminium one

This one to be exact

http://www.034motorsport.com/clutches-f ... 21068.html

The clutch still feels very OEM which is great but can clamp 780nm so can take a lot of punishment. :twisted:

VERY nice! Let me know how you like driving it. I was a weeny :? and went the steel route because the shop scared me off with their warnings about noise, and that it might be difficult to drive, etc. . . . but now I wish I'd done aluminum . . . not a really bad regret (life is good), but I would do differently now that I know what it is. As I said before, the "noise" doesn't bother me . . . it's purposeful. And you're saying it drives like OEM. Well, I'll have to get them to swap it next time I'm up there. You've given me a project to take the trip with the new SEM IM!

 

[Vrroom]

Loving my SEM and R32 TB, I know Frase had issues with his R32 TB but mines running sweet!

Bling Bling!

That engine is absolutely beautiful!! :mrgreen: