High flow throttle bodies

pokeyl · 12-15-2011, 10:46 PM

Anyone put a set of bigger throttle bodies on a N/A engine? Result?

Methodical4u · 12-15-2011, 11:19 PM

not that I know of

Megan370z · 12-15-2011, 11:54 PM

Quote:

Originally Posted by pokeyl

Anyone put a set of bigger throttle bodies on a N/A engine? Result?

I did that mod earlier this year (winter project)

but I haven't done an extensive testing because at that time I had some ign timing issue caused by a cracked flywheel (discovered in September) but I did see some improvement

my guess why I gained some power with the oversized TB was because when I did the test if i remember correctly , it was with my custom CAI which had a bigger MAF tube . soo the choking point was the Oem TB and not the MAF anymore

Alstann · 12-16-2011, 12:20 AM

Is that just a bored stock TB? Or is there an an aftermarket version of that?

Mandingo · 12-16-2011, 12:33 AM

I think its bored

SPOHN · 12-16-2011, 06:52 AM

How much over was it bored?

Quote:

Originally Posted by Megan370z

I did that mod earlier this year (winter project)

but I haven't done an extensive testing because at that time I had some ign timing issue caused by a cracked flywheel (discovered in September) but I did see some improvement

my guess why I gained some power with the oversized TB was because when I did the test if i remember correctly , it was with my custom CAI which had a bigger MAF tube . soo the choking point was the Oem TB and not the MAF anymore

Megan370z · 12-16-2011, 07:42 AM

Oem TB are 60mm wide
I bored it up to 62.5mm +
the butterfly shaft is cut in half with the screw has being filed down and the butterfly plate has an angled cut all around .

the cost ? 500$ for both of them .(250$ /each)

Jordo! · 12-16-2011, 04:50 PM

Any idle issues?

pokeyl · 12-16-2011, 05:01 PM

I was looking at the 70mm aftermarket. With the larger MAF

pokeyl · 12-16-2011, 05:27 PM

I was looking at the 70mm aftermarket. With the larger MAF

Megan370z · 12-16-2011, 05:31 PM

Quote:

Originally Posted by Jordo!

Any idle issues?

once the idle screw is set correctly , there isnt any problem !

Megan370z · 12-16-2011, 05:33 PM

Quote:

Originally Posted by pokeyl

I was looking at the 70mm aftermarket. With the larger MAF

im not sure it would be a good idea while being N/A on our twin TB intake

if, you get any positive news about this ,, let us know !

edit; btw , if you are looking or a 70mm TB ,, good luck with that on the 370z , because the diameter of the intake manifold is at 64mm + - 1mm ...

12-15-2011, 10:46 PM	#1 (permalink)
pokeyl Track Member Join Date: Nov 2010 Location: DFS Posts: 900 Drives: ??? Rep Power: 55	High flow throttle bodies Anyone put a set of bigger throttle bodies on a N/A engine? Result? __________________ It's not my fault I'm old, I was born a very long time ago!

12-16-2011, 12:33 AM	#5 (permalink)
Mandingo Track Member Join Date: Nov 2010 Location: Dallas Posts: 625 Drives: '10 370z 6spd Rep Power: 3371	I think its bored __________________ some mods

12-16-2011, 07:42 AM	#7 (permalink)
Megan370z A True Z Fanatic Join Date: Oct 2009 Location: Canada Posts: 1,156 Drives: 370z Rep Power: 24	Oem TB are 60mm wide I bored it up to 62.5mm + the butterfly shaft is cut in half with the screw has being filed down and the butterfly plate has an angled cut all around . the cost ? 500$ for both of them .(250$ /each) __________________ Megan Journal Click Me ....................One Man Team Motorsport Click Me

12-16-2011, 04:50 PM	#8 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	Any idle issues? __________________ Enjoy it. Destroy it.

12-16-2011, 05:01 PM	#9 (permalink)
pokeyl Track Member Join Date: Nov 2010 Location: DFS Posts: 900 Drives: ??? Rep Power: 55	I was looking at the 70mm aftermarket. With the larger MAF __________________ It's not my fault I'm old, I was born a very long time ago!

12-15-2011, 11:19 PM	#2 (permalink)
Methodical4u A True Z Fanatic Join Date: Jun 2011 Location: Maryland Posts: 1,393 Drives: 11 370 6mt pw w/sp Rep Power: 16	not that I know of

12-16-2011, 12:20 AM	#4 (permalink)
Alstann Track Member Join Date: Oct 2011 Location: South Florida Posts: 882 Drives: 12 PW 370z 6MT Sport Rep Power: 15	Is that just a bored stock TB? Or is there an an aftermarket version of that?

12-16-2011, 05:27 PM	#10 (permalink)
pokeyl Track Member Join Date: Nov 2010 Location: DFS Posts: 900 Drives: ??? Rep Power: 55	I was looking at the 70mm aftermarket. With the larger MAF __________________ It's not my fault I'm old, I was born a very long time ago!

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