my hotpipe is bigger than yours *neener neener* - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

KwKouki · 01-21-2007, 06:12 PM

I have been getting mixes responses about replacing my hotpipe. Out of 5 people, 3 have recommended me bumping back down to a 2 inch hotpipe *had a 2.50 before* They are saying that the extra half inch will cause lag from my specR t28. I have a project nissan hotpipe sitting in my office but dont know what to do with it

a) keep it and replace the bigger couplers
b) send it back for a greddy 2.50

Anyone else want to discuss what would be best for me to run?

kensreliableb18b · 01-21-2007, 06:15 PM

id worry more about your intake pipe collapsing than the diameter of your hotpipe (i think the difference will be minimal in performance). so yea, do you have a hardpipe intake?

KwKouki · 01-21-2007, 06:18 PM

As soon as the guy from pipingpro gets back to me I will. I have been waiting for a response forever from him.

orion::S14 · 01-21-2007, 06:24 PM

You'll never reach the level where it's a big restriction with a T28...JUST USE IT.

And the "lag" thing...that's so minimal, it's not even measurable (i.e. the volume of that short pipe, 2.0 diameter versus 2.5 diameter...will make ZERO difference)

- Brian

MegasquirtCA · 01-21-2007, 06:41 PM

I have a GT28R with 2.5" piping all around with 3" exhaust from Elbow to muffler on a CA18DET.

On stock manifold I would start building boost at 2200rpms and by 2700rpms already at full boost. On my SSAC manifold I start building boost at 2600rpms and full boost at 3100rpms.

KwKouki · 01-21-2007, 06:49 PM

awsome. thank you for your help guys. Now I can just order a new turbo inlet and reduced intercooler coupler.

MegasquirtCA · 01-21-2007, 07:57 PM

If your looking for a reducer I have a 2" to 2.5" reducer selling for $10 shipped and im in south florida.

01-21-2007, 06:12 PM	#1
KwKouki Nissanaholic! Join Date: Apr 2003 Location: Key West, FL Age: 44 Posts: 2,212 Trader Rating: (6) Feedback Score: 6 reviews	my hotpipe is bigger than yours neener neener I have been getting mixes responses about replacing my hotpipe. Out of 5 people, 3 have recommended me bumping back down to a 2 inch hotpipe had a 2.50 before They are saying that the extra half inch will cause lag from my specR t28. I have a project nissan hotpipe sitting in my office but dont know what to do with it a) keep it and replace the bigger couplers b) send it back for a greddy 2.50 Anyone else want to discuss what would be best for me to run? __________________

01-21-2007, 06:18 PM	#3
KwKouki Nissanaholic! Join Date: Apr 2003 Location: Key West, FL Age: 44 Posts: 2,212 Trader Rating: (6) Feedback Score: 6 reviews	As soon as the guy from pipingpro gets back to me I will. I have been waiting for a response forever from him. __________________

01-21-2007, 06:24 PM	#4
orion::S14 Nissanaholic! Join Date: May 2003 Location: Orange Park, FL Posts: 1,666 Trader Rating: (0) Feedback Score: 0 reviews	You'll never reach the level where it's a big restriction with a T28...JUST USE IT. And the "lag" thing...that's so minimal, it's not even measurable (i.e. the volume of that short pipe, 2.0 diameter versus 2.5 diameter...will make ZERO difference) - Brian __________________ www.KA24DEvelopment.com

01-21-2007, 06:49 PM	#6
KwKouki Nissanaholic! Join Date: Apr 2003 Location: Key West, FL Age: 44 Posts: 2,212 Trader Rating: (6) Feedback Score: 6 reviews	awsome. thank you for your help guys. Now I can just order a new turbo inlet and reduced intercooler coupler. __________________

01-21-2007, 06:15 PM	#2
kensreliableb18b Zilvia Addict Join Date: Jun 2004 Location: so cal - 626, 909, 562 and 949. 818 if i feel like running away Posts: 945 Trader Rating: (1) Feedback Score: 1 reviews	id worry more about your intake pipe collapsing than the diameter of your hotpipe (i think the difference will be minimal in performance). so yea, do you have a hardpipe intake?

01-21-2007, 06:41 PM	#5
MegasquirtCA Zilvia Addict Join Date: May 2006 Location: South Florida Posts: 610 Trader Rating: (3) Feedback Score: 3 reviews	I have a GT28R with 2.5" piping all around with 3" exhaust from Elbow to muffler on a CA18DET. On stock manifold I would start building boost at 2200rpms and by 2700rpms already at full boost. On my SSAC manifold I start building boost at 2600rpms and full boost at 3100rpms.

01-21-2007, 07:57 PM	#7
MegasquirtCA Zilvia Addict Join Date: May 2006 Location: South Florida Posts: 610 Trader Rating: (3) Feedback Score: 3 reviews	If your looking for a reducer I have a 2" to 2.5" reducer selling for $10 shipped and im in south florida.