Best Dump/front Pipes For A 26 ?

[Thelen]

When I looked at Xforce they had a all in one kit that was turbo back, that would include the dump and front, but I'm not sure in this case they are different physical pipes?

[Nee-san]

When we're talking ceramic coating of all the hot bits, what sort of gains are we talking 5 , 10 hp ?

[Ryan1200]

Lukass 33 Prices for the CES stuff can be found here:

http://www.cesracing.com.au/products_2.htm

Edited April 13, 2010 by Ryan1200

[NSNPWR]

As i said above - i swapped out dumps FROM aftermarket back to stock - there was no response difference to speak of.

So NO retuning was done at all? Got graphs? Power was identical was it? Personally I find this very hard to believe, im sure im not alone...

[ghostflameR33]

go the trust/greddy front and dump pipes - $600 bucks from autobarn cant go wrong...

[femno]

That CES stuff looks pretty nice! Although they have TERRIBLE customer service. Everytime I contacted them for pricing and delivery eta etc they couldnt tell me or the person who knew wasnt there and they never ever called back! Nor did they reply to emails!

But anyway I had the HKS dumps with -5s and with my ultra high-flowing exhaust, i had serious boost creep. Creep from 18 to 22+, it was uncontrollable.

I then went to R34 Stainless factory dumps and the problem was ALL GONE.

I say bolt on a pair of 33 or 34 factory dumps, and get a nice front pipe. Just as long as the inlets to the front pipe are the same size as the outlet of the dumps (no need to get any bigger) youll be fine.

Oh and dont forget adjustable cam gears for awesome increases in response

[Angus Smart]

i have Amuse r1 titan front pipe and tomei dumps

[Tangles]

Im putting together a front set to match the 3.5" 5Zigen cat-back on my track rb26

* twin equal length tubular manifold

* twin hks split dump pipes

* 2.5" dual into 3.5" single front pipe

highflowed turbo's.

eventually doing a big engine build. got 90% of parts now

[NSNPWR]

But anyway I had the HKS dumps with -5s and with my ultra high-flowing exhaust, i had serious boost creep. Creep from 18 to 22+, it was uncontrollable.

I then went to R34 Stainless factory dumps and the problem was ALL GONE.

So what this says to me is the stock bumps choke an exhaust....

[gfunkk]

When we're talking ceramic coating of all the hot bits, what sort of gains are we talking 5 , 10 hp ?

naa man its more complicated than that.. stock exhaust parts are generally ok but stainless heats up your engien bay like a mofo

and a lot of GTR's just have open pods in their engine bay, so all that heat in the bay is making your air coming in hot

its basically driving in winter vs driving in summer

[gtr fan]

I was trying to locate a pair of R34GTR dumpies for my -5's but had no luck. Was about to go the Tomei route then got lucky and bought the CES race pipe system second hand for less than the price of tomei's! (and it was already ceramic coating)!

But for cost effective and good enough response R34GTR dumps are meant to be good and very cheap to buy (but they sell very quickly:)

[R31Nismoid]

So NO retuning was done at all? Got graphs? Power was identical was it? Personally I find this very hard to believe, im sure im not alone...

Nothing was changed, just the dumps.

No graphs of the before, i already knew what power it was making and it was identical to the after.

I know the car very well and i could feel there was no difference in boost ramp up/response.

[NSNPWR]

So your seat of the pants dyno would pick up a 20kw difference? Lol.....

...is this the same seat of pants dyno you determined your GT30 equipped RB25 made 300rwkw on and then only went on to run 115mph?

Edited April 14, 2010 by NSNPWR

[R31Nismoid]

Are you hard of reading trying to deliverately turn this into the same as the last thread where you were wrong and then tried to backpedal out of your own statements?

I told you the power output was identical.

i already knew what power it was making and it was identical to the after.

And i then said:

i could feel there was no difference in boost ramp up/response.

What i was referring to was boost response on the street, no change.

@ 3,300rpm the boost gauge did the same show it always does. Identical before/after the dump swap.

Peak boost/power (via dyno) was also the same.

[NSNPWR]

Im not backpedalling, just questioning the sh1t you post as fact when its not always the case...youre previous statement about air temps not being as important as fuel/ignition was wrong, get over it.

I would put my house on the fact that your experience with dump pipes is not the norm and that 99% of the time people will make gains from aftermarket dump pipes...maybe you scored some 'freak' dump pipes.

Youre as good as alleging the manufacturers of a/m dumps are lying when they back to back test their product and show gains? Is that what youre suggesting, indirectly?

[R31Nismoid]

You did. Still obviously unable to accept you were wrong either. This is even after others pulled you up on it... meh.

There are 3 cars i know (after asking around) including my own running R33/R32 dumps, 330rwkw/-9s etc etc. FACT.

These setups are the same as other setups WITH bigger dumps (all from the same workshop, same build specs etc). FACT

There are another 5-10 cars running upto 400rwkw with R34 items, and dozens with aftermarket ones - again identical. FACT

Now fair enough there is some minor variance, every motor is not 100% identical, however when the results are all similar enough that there is no signifigant difference...

Good enough proof for me, and i am one not easily convinced.

Hell there could even be more now as I've seen a fair few people jumping on factory dump pipes when they come up in the For Sale area.

Notice the word FACT there? It is the case. It is as real as the very keyboard you type with.

I'll tell you what i'll do. On Friday I promise i will try to get a part number off Nissan for these 'freak' OEM dumps when I'm down there.

I mean they must exist if there are countless results to back them in your eyes.

What i can't promise though, is my very resourceful parts contact, looking at me with a straight face...

[NSNPWR]

So in your absolutely ridiculously over exaggerated examples above, these 'DOZENS' of cars are running identical boost, ignition maps, cam timing, fuel mixtures...cmon man, get your hand off it ffs...

No 2 cars are the same, agreed, the basic principles remain the same regardless...more air/fuel in, more exhaust out as quickly as possible...

I would like to see a comparison of exhaust temps after repeated thrashing....youre one off dyno reading is fine as long as thats all youre doing in the real world I guess, an occassional 4th gear pull?

[thrtytwo]

When I looked at Xforce they had a all in one kit that was turbo back, that would include the dump and front, but I'm not sure in this case they are different physical pipes?

Xforce... kthnxbai

That CES stuff looks pretty nice! Although they have TERRIBLE customer service. Everytime I contacted them for pricing and delivery eta etc they couldnt tell me or the person who knew wasnt there and they never ever called back! Nor did they reply to emails!

But anyway I had the HKS dumps with -5s and with my ultra high-flowing exhaust, i had serious boost creep. Creep from 18 to 22+, it was uncontrollable.

I then went to R34 Stainless factory dumps and the problem was ALL GONE.

I say bolt on a pair of 33 or 34 factory dumps, and get a nice front pipe. Just as long as the inlets to the front pipe are the same size as the outlet of the dumps (no need to get any bigger) youll be fine.

Oh and dont forget adjustable cam gears for awesome increases in response

sweet, cheers for the advice !

[NSNPWR]

Whats wrong with the X-Force stuff? For the money?.....

[zebra]

So in your absolutely ridiculously over exaggerated examples above, these 'DOZENS' of cars are running identical boost, ignition maps, cam timing, fuel mixtures...cmon man, get your hand off it ffs...

No 2 cars are the same, agreed, the basic principles remain the same regardless...more air/fuel in, more exhaust out as quickly as possible...

I would like to see a comparison of exhaust temps after repeated thrashing....youre one off dyno reading is fine as long as thats all youre doing in the real world I guess, an occassional 4th gear pull?

wtf do exhaust temps have to do with anything?

All X-force stuff is, is the same china crap you buy from ebay but with a bigger price tag and a X-force badge welded to it