Jump to content
SAU Community

Is Batmbl Split Dump + Front Pipe Still Available ?

discopotato03

By discopotato03,
in Engines & Forced Induction

 Share

Recommended Posts

discopotato03 Grand Master

discopotato03

Posted
Posted

I searched and I searched but cannot find mention of the one piece split dump and front pipe BATMBL used to advertise in the group buy section .

Are these still available or does anyone have one to sell for an S2 R33 GTS25T manual car ?

Cheers , Adrian .

JustinP Mentor

JustinP

Posted
Posted

haha I was just trying to find out if this guy still exists also. I have one which I want to sell, but unfortunately it is an R34 version. I have found it to be a great split front / dump pipe, but need to get rid of it as the new turbo I will be buying comes with a dump pipe. Now I need to find a nice stainless front pipe from somewhere.

JustinP Mentor

JustinP

Posted
Posted
Would I be right in thinking that an R33 and R34 one would be different ?

Cheers A .

From memory when I brought it, I am pretty sure they are different as he had the different options. In fact I cant remember if the 4 door and 2 door versions of the R34 version are different either (I have a 4 door).

GTScotT Grand Master

GTScotT

Posted
Posted

Purely based on products available, the r34 brings up a different listing to r32/33. Generally 32 and 33 are the same listing.

Short of the above as far as I have been following, your doing a highflow or GTRS? If so, I am confident a JJR bellmouth will not be far off the mark of the split setup. For $179 direct fit its definitely hard to argue lol.

discopotato03 Grand Master

discopotato03

Posted
  • Author
Posted

I'm going the GTRS kit route and may as well do the front pipe because ATM the turbo and back to the hi flow cat is factory .

By the way do these combined dump/front pipes support the turbo because I'm not keen to have the exhaust manifold crack and most Nissan cast dumps have some sort of bracing .

No one want to sell an R33 BATMBL split dump/front pipe ?

Cheers A .

GTScotT Grand Master

GTScotT

Posted
Posted
By the way do these combined dump/front pipes support the turbo because I'm not keen to have the exhaust manifold crack and most Nissan cast dumps have some sort of bracing .

Your running a cast manifold from factory so additional support is next to useless. Failure rate on the one piece dumps is fairly low provided you use the gearbox exhaust hanger to brace the front pipe where it meets the cat.

As I said, $179 and you cant complain lol.

wolverine Grand Master

wolverine

Posted
Posted

No you don't. :P

You want a nice fat bellmouth. Give the expanding exhaust gases the lowest pressure area to expand.

Also, you don't want issues with the gate fowling on the wastegate pipe that can be a result of the split pipes.

Beer Baron Grand Master

Beer Baron

Posted
Posted

wolverine hit the nail on it's circular, flat, top part. nice big bell mouth is the way to go. less problems with wastegate flap fouling, nice big area for gas to expand quickly give best result. :blink:

Basti Grand Master

Basti

Posted
Posted
ive got a batmbl split dump on my 33 have had it for at least 6 years, no issues and still working (ie reliable) with std turbo and setup

near on four years on mine. no issues

No you don't. :blink:

You want a nice fat bellmouth. Give the expanding exhaust gases the lowest pressure area to expand.

Also, you don't want issues with the gate fowling on the wastegate pipe that can be a result of the split pipes.

wastegate fouling = boost spiking? if so i have no wastegate issues. btmbl is good

wolverine Grand Master

wolverine

Posted
Posted

I agree, the btmbl is a good product.

Some split pipes fowl the wastegate flaps so buying one is a risk but the main reason for my opinion is based on back to back testing of split vs bellmouth. The bellmouth made more power earlier which I believe is due to having a larger chamber for exhaust gases to expand.

We have had some threads on dump design and optimal angles of expansion of pipework from the turbine outlet to get best performance, if I can dig it up I will link it.

This does not mean that a split dump is a bad option but it isn't the best option in my experience.

STATUS Grand Master

STATUS

Posted
Posted
No you don't. :blink:

You want a nice fat bellmouth. Give the expanding exhaust gases the lowest pressure area to expand.

Also, you don't want issues with the gate fowling on the wastegate pipe that can be a result of the split pipes.

Bingo the open ones seem to give better results, even on sr's.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      Possible swap on R34 RB20DE NEO?

      By GTSBoy · Posted

      If the RB29 box in the car is a push clutch, then yes, you will need to deal with the pull clutch on the turbo box. You either buy a pull clutch and don't use the old one, or you do the things needed to convert the turbo box's clutch arrangement over to push. Which is a bit of a f**karound. "Making" a custom tailshaft is the easy part. But you will need to source the front clip yoke - the bit that goes into the output of the gearbox. These are not as easy to find. They are out there, but they don't grow on trees the way that they used to.
    • GTSBoy
      Turn signal wiring question

      By GTSBoy · Posted

      Indicator bulbs are way too bright to use as a "corner marker" (we call them parking lights too). Sure. Go ahead and do it. But realise that you wil need to come up with all your own wiring to do it, as no-one will have a standard howto worked out for Skylines. It's just a matter of abandoning everything that Nissan have done and starting from scratch. You'd probably be better off retrofitting tailght/brakelight globe bases into the front indicator housings and using the taillight circuit for your corner marker and the brake light as the indicator. You'd need to work out how to kill the marker circuit while the indicator is flashing, otherwise it won't flash on-off, just bright-less bright.
    • Kapr
      Possible swap on R34 RB20DE NEO?

      By Kapr · Posted

      Hi. A little bit of an update. It maybe(hope not) looks like i would need a new tranny(it would be "maybe" a cheaper or better option anyway) So i need some info. I know i need a different propshaft(i can make custom one) LSD is not a problem cuz the engine will be still(for now) N/A RB20. So if i buy RB25DET NEO tranny...is there something else i need? I read something about push/pull type but i do not know if i need to "change" something or i can just plug n play onto my engine a go? Thanks for the advice  
    • OakvilleGTR
      Turn signal wiring question

      By OakvilleGTR · Posted

      Good morning all, Bit of a random question but figured I’d finally throw it out after wondering for a long while. Before I start, I'm hoping to do this purely out of personal preference. I think it would look better at night, and don't mind at all spending a few hours and dollars to get it done. I've copied this from a non-Skyline specific forum, so I apologize for the explanation of our headlight switch setup that we all know. Here we go: Zero lights (switch off) Parking lights (switch position 1) being a rectangular marker on the outside of the housing, my low beam being the projector in the centre (position 2), and a high beam triggered by my turn signal stalk. Most North American cars I’ve owned of this era have power to the amber corner (turning indicator) light as part of the first switch (parking lights). I’d love to have these amber corners receive power when the headlights and parking lights are on (headlight switch), yet still blink when using the turn signal which is of course a separate switch. Hopefully I’ve explained my question correctly. Is anyone aware of a way in which I might be able to achieve this? Thanks in advance
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      My heads are cathedral port! It's likely possible, but I don't want to add any extra moving parts (I know they don't move) between the heads, manifolds, etc. It will also affect how injectors/fuel rails etc sit and I don't really know if it would change how the FAST manifold goes/sits/fits. I have the LS6 steam pipes already as I have a very late LS1 block so it should be fine. I couldn't find anyone who had ever actually used one for this purpose, it seems 100% of people grind the water pump. The thermal spacers are 12mm and are half way to the cost of the newer water pump anyhow... so if it comes to that I suppose I'd rather buy a new pump. The bearing in the pump I do have is a little.. clunky, but it hasn't done that much time and I never noticed it when the car was together in the past few years, so..
×
×
  • Create New...