4 inch down pipe? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jubee · 02-16-2010, 06:09 AM

ok have asked around and am not really getting a clear answer so i will try here.

Looking to do a 4 inch down pipe on my setup wanna know will this fit, starting from the turbo? I know ounce i go under the car it will fit but mainly in the engine bay is my concern.

This of course is a SR and its in a s13 chassis.

if anyone has done this and has pics please post them up. would like to see how it looks.

AtReYu72 · 02-18-2010, 04:11 PM

Do you really need a 4 '' dp ? Whats your engine setup ?

Flicktitty · 02-18-2010, 04:24 PM

i think it is gonna be pretty hard to fit it with the brake assembly.

Crazyirish · 02-18-2010, 08:17 PM

Not worth the hassle of getting it to fit. At least not if your going for 3 digit horsepower figures.

DreamN · 02-18-2010, 08:35 PM

Quote:

Originally Posted by Crazyirish

Not worth the hassle of getting it to fit. At least not if your going for 3 digit horsepower figures.

Uhh... what? Guess folks been having trouble breaking into the 100 HP range eh? lol

951's 330i · 02-18-2010, 08:40 PM

Quote:

Originally Posted by DreamN

Uhh... what? Guess folks been having trouble breaking into the 100 HP range eh? lol

I think he meant like 300+ but below 4 lol

devonkyle77 · 02-18-2010, 08:44 PM

since when did zilvia become a diesel truck forum?

PoorMans180SX · 02-18-2010, 09:05 PM

No he meant like 3 digits. That could be anywhere from 100-999.

Basically it's pointless to run a 4in downpipe if you're looking for something in the 3-digit range.

mptjimmy · 02-18-2010, 10:09 PM

a 4" down pipe would be perfect for a rb, or 1j or 2j with a MASSIVE turbo, but on a sr, 3" is more than enough, now if your sr was complletely built stroked to a 2.2 with cams, and a full fuel system 720cc injectors+ pushed by a t61 then maybe, and this is almost a drag setup to utilize a full 4" exhaust, but ifyour thinking a 4" down pipe to a 3" exhaust system, again all not worth , spend you money and upgrade something else

jubee · 02-20-2010, 05:33 PM

ok cool thanks for all the info guys. only thing that i am not touching right now will be the bottom. only due to funds.

Ceepo · 02-21-2010, 10:54 AM

My buddy has a 4inch dp on his cefiro, but he also has a rb20det with a holset HE351 turbo off a cummins diesel motor...

I dont see any benifit of this on a sr20det, spend the money elsewhere....

reflexdb · 02-21-2010, 11:12 AM

Are you worried about the flow restriction from a 3'' downpipe? Do you have 4'' exhaust from the downpipe back?

02-16-2010, 06:09 AM	#1
jubee Zilvia Member Join Date: Mar 2009 Location: wesley chapel Age: 40 Posts: 299 Trader Rating: (8) Feedback Score: 8 reviews	4 inch down pipe? ok have asked around and am not really getting a clear answer so i will try here. Looking to do a 4 inch down pipe on my setup wanna know will this fit, starting from the turbo? I know ounce i go under the car it will fit but mainly in the engine bay is my concern. This of course is a SR and its in a s13 chassis. if anyone has done this and has pics please post them up. would like to see how it looks.

02-18-2010, 04:24 PM	#3
Flicktitty Post Whore! Join Date: Apr 2007 Location: Wisconsin Age: 34 Posts: 3,685 Trader Rating: (13) Feedback Score: 13 reviews	i think it is gonna be pretty hard to fit it with the brake assembly. __________________ 2JZ-GTE Swapped S13 Coupe - 1994 Supra Turbo

02-18-2010, 08:44 PM	#7
devonkyle77 Post Whore! Join Date: Sep 2003 Location: md Age: 37 Posts: 3,091 Trader Rating: (3) Rides Gallery: devonkyle77 Feedback Score: 3 reviews	since when did zilvia become a diesel truck forum? __________________ WTB-NARDI wheel & NRG 2.8 QR

02-18-2010, 09:05 PM	#8
PoorMans180SX Zilvia.net Advertiser Join Date: Nov 2005 Location: Michigan Age: 33 Posts: 5,430 Trader Rating: (16) Rides Gallery: PoorMans180SX Feedback Score: 16 reviews	No he meant like 3 digits. That could be anywhere from 100-999. Basically it's pointless to run a 4in downpipe if you're looking for something in the 3-digit range. __________________ Build: http://zilvia.net/f/showthread.php?t=643065 Friends don't let friends buy knock-offs.

02-21-2010, 10:54 AM	#11
Ceepo Nissanaholic! Join Date: Jan 2008 Location: Cedar City, Utah Posts: 2,007 Trader Rating: (9) Rides Gallery: Ceepo Feedback Score: 9 reviews	My buddy has a 4inch dp on his cefiro, but he also has a rb20det with a holset HE351 turbo off a cummins diesel motor... I dont see any benifit of this on a sr20det, spend the money elsewhere.... __________________ TW: http://zilvia.net/f/cars-sale/390459...d9s-coils.html

02-18-2010, 04:11 PM	#2
AtReYu72 Join Date: Jul 2006 Location: Québec , Canada Age: 32 Posts: 12 Trader Rating: (0) Feedback Score: 0 reviews	Do you really need a 4 '' dp ? Whats your engine setup ?

02-18-2010, 08:17 PM	#4
Crazyirish Join Date: Aug 2008 Location: Camel City, NC Age: 40 Posts: 48 Trader Rating: (0) Feedback Score: 0 reviews	Not worth the hassle of getting it to fit. At least not if your going for 3 digit horsepower figures.

02-18-2010, 10:09 PM	#9
mptjimmy Zilvia Member Join Date: Oct 2009 Location: LA, CA Posts: 151 Trader Rating: (1) Feedback Score: 1 reviews	a 4" down pipe would be perfect for a rb, or 1j or 2j with a MASSIVE turbo, but on a sr, 3" is more than enough, now if your sr was complletely built stroked to a 2.2 with cams, and a full fuel system 720cc injectors+ pushed by a t61 then maybe, and this is almost a drag setup to utilize a full 4" exhaust, but ifyour thinking a 4" down pipe to a 3" exhaust system, again all not worth , spend you money and upgrade something else

02-20-2010, 05:33 PM	#10
jubee Zilvia Member Join Date: Mar 2009 Location: wesley chapel Age: 40 Posts: 299 Trader Rating: (8) Feedback Score: 8 reviews	ok cool thanks for all the info guys. only thing that i am not touching right now will be the bottom. only due to funds.

02-21-2010, 11:12 AM	#12
reflexdb Zilvia Junkie Join Date: Feb 2004 Location: Denver, CO Age: 37 Posts: 382 Trader Rating: (6) Feedback Score: 6 reviews	Are you worried about the flow restriction from a 3'' downpipe? Do you have 4'' exhaust from the downpipe back? __________________

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