DIY: Berk Technology HFC Install

tjlazer · 10-02-2010, 11:28 AM

Haha the only thing I broke was a cat! All the tools survived, even my knuckles.

(stripped the driver side bolt so this was the only way...)

LUVZTTZ · 10-06-2010, 02:26 PM

I read the thread, but maybe I missed it.

I see you weighed the stock cats in your pics. How much weight savings are we talking? 4 oz?

M.Bonanni · 10-06-2010, 07:11 PM

Quote:

Originally Posted by LUVZTTZ

I read the thread, but maybe I missed it.

I see you weighed the stock cats in your pics. How much weight savings are we talking? 4 oz?

Berk Technology HFCs are 5 lbs. lighter each than stock so 10 lbs. weight savings total.

Gmendez · 11-18-2010, 04:22 PM

Your dyno pics (Last one) shows a gain of 24whp/26wtq. What else was done to acheive this (Uprev/tune/CBE/etc.)??

How much would I expect to gain from simply installing Berks on my NISMO? What about with Berks & Uprev tune? I'd like to keep the OEM NISMO exhaust.

M.Bonanni · 11-18-2010, 06:41 PM

Quote:

Originally Posted by Gmendez

Your dyno pics (Last one) shows a gain of 24whp/26wtq. What else was done to acheive this (Uprev/tune/CBE/etc.)??

How much would I expect to gain from simply installing Berks on my NISMO? What about with Berks & Uprev tune? I'd like to keep the OEM NISMO exhaust.

The dyno was 100% stock vs. 100% stock w/Berk HFCs, nothing else done to the car. They might not gain as much on the Nismo since the Nismo cat-back is better than the regular stock cat-back, but you should see good gains. Essentially, the first mod you do to the exhaust system on these cars will show the biggest gains.

Gmendez · 11-19-2010, 10:12 AM

Quote:

Originally Posted by M.Bonanni

The dyno was 100% stock vs. 100% stock w/Berk HFCs, nothing else done to the car. They might not gain as much on the Nismo since the Nismo cat-back is better than the regular stock cat-back, but you should see good gains. Essentially, the first mod you do to the exhaust system on these cars will show the biggest gains.

Wow, great gains! Thanks for the response.

So, does anyone know (real knowledge) what I could expect to gain on my NISMO from simply bolting on Berk HFCs or TPs?

What about Berk HFC or TP with UPREV tune?

Where in FL can I find a knowledgeable UPREV tuner?

Sorry for all the questions guys.....Thanks in advance!

chops · 11-21-2010, 10:18 PM

arghh!! did anyone have trouble with the bolts connecting the cat to the H pipe? i cannot for the life of me get the outside bolts off on both the driver and passenger side. cant get a breaker bar underneath the car either.

Baer383 · 11-21-2010, 11:35 PM

Quote:

Originally Posted by chops

arghh!! did anyone have trouble with the bolts connecting the cat to the H pipe? i cannot for the life of me get the outside bolts off on both the driver and passenger side. cant get a breaker bar underneath the car either.

PB blaster,then put a closed end wrench and hit the wrench with a hammer to start it.

chops · 11-21-2010, 11:52 PM

Quote:

Originally Posted by Baer383

PB blaster,then put a closed end wrench and hit the wrench with a hammer to start it.

thanks, i finally got it off after another hour wrestling with it.

bah...now to figure out how to get a wrench into the top 3 bolts!

this is the view from the bottom...im sort of confused on the instructions, how can you even fish a ratchet in there!

christian370z · 11-22-2010, 12:22 AM

I used this method to daisy chain two wrenches together to a) get enough torque on those bolts and b) to reach them:

You can also access that bottom bolt facing away from you by using an extension and sticking through the subframe in front of the camera. There is an opening, you just having to play around and find it since I can't remember exactly where it is.

atx370z · 11-22-2010, 06:00 PM

Before i put my new exhaust on i pulled off my HFC's to install the gaskets between the cats and the stock exhaust mani's... i got them off without having to go through the engine bay. 2 of the 3 bolts on each side i got off using an 2 open end wrenches like the above pic and the other 2 i got off with a impact gun, 14" of extensions, and a universal joint. **** was too easy. But, that was the second time they have been off the car. Not sure if it can be done that way with the stock cats.

atx370z · 11-22-2010, 06:01 PM

Quote:

Originally Posted by chops

arghh!! did anyone have trouble with the bolts connecting the cat to the H pipe? i cannot for the life of me get the outside bolts off on both the driver and passenger side. cant get a breaker bar underneath the car either.

eat some spinach

chops · 11-23-2010, 02:05 AM

Quote:

Originally Posted by The Weapon

The hardest bolt i had a hard time with was on the bottom bolt. The steering column seems to be in the way. I decided it was easier to feed the breaker bar through the side next to the tire.

no kidding...i have the passenger side cat completely removed as well as all the bolts on the driver side EXCEPT for the bottom bolt next to what i believe is also the steering column. i cannot get this one to budge! ive tried the daisy chaining wrench method to no avail, and i cant get a ratchet in there with enough room to make the ratchet work...working for 2hours/day on this sucks. i miss driving this thing :\

phew...removed the bottom bolt, but now i stripped the THREADS on the top bolt. it just turns infinitely. guess its time to find someone that can drill it out

cujo · 12-11-2010, 02:07 PM

Where do you put the floor jack to raise the car? You can't put the floor jack on the support-point since this is where the jack stand will go correct?
Thanks in advance

CBRich · 12-11-2010, 02:15 PM

Look at the very center of the subframe in the front. You see a nib there? Your jack cup should fit perfectly. Now jack from there and put the stands on the sides. If your jack won't reach way back there to get that nub then jack up one side first with the stock jack and then get that nub.

10-02-2010, 11:28 AM	#61 (permalink)
tjlazer A True Z Fanatic Join Date: Dec 2009 Location: Tacoma Age: 53 Posts: 2,496 Drives: Z34, R35 Rep Power: 20	Haha the only thing I broke was a cat! All the tools survived, even my knuckles. (stripped the driver side bolt so this was the only way...) __________________ 2009 370Z Monterey Blue,Nismo Conversion,RE-11's, K&N Typhoon intakes,Blue Kickplates,Homelink,FI 18" CBE,ERZ HFCs,Hotchkis sways, Swift Spec-R, EVO-R Highwing, UPREV

10-06-2010, 02:26 PM	#62 (permalink)
LUVZTTZ Base Member Join Date: Apr 2009 Location: St Louis, MO Posts: 57 Drives: Black 91 TT Rep Power: 16	Weight I read the thread, but maybe I missed it. I see you weighed the stock cats in your pics. How much weight savings are we talking? 4 oz?

11-18-2010, 04:22 PM	#64 (permalink)
Gmendez Base Member Join Date: Mar 2010 Location: Miami, FL Posts: 114 Drives: '10 PW 370Z NISMO Rep Power: 15	Your dyno pics (Last one) shows a gain of 24whp/26wtq. What else was done to acheive this (Uprev/tune/CBE/etc.)?? How much would I expect to gain from simply installing Berks on my NISMO? What about with Berks & Uprev tune? I'd like to keep the OEM NISMO exhaust. Last edited by Gmendez; 11-18-2010 at 04:36 PM.

11-22-2010, 12:22 AM	#70 (permalink)
christian370z A True Z Fanatic Join Date: Jul 2010 Location: Newport Beach Posts: 3,900 Drives: 2010 370Z/Saab 900se Rep Power: 432	I used this method to daisy chain two wrenches together to a) get enough torque on those bolts and b) to reach them: You can also access that bottom bolt facing away from you by using an extension and sticking through the subframe in front of the camera. There is an opening, you just having to play around and find it since I can't remember exactly where it is. __________________ -320whp / 259wftlbs- SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob

11-22-2010, 06:00 PM	#71 (permalink)
atx370z Track Member Join Date: Aug 2010 Location: Austin, TX Posts: 637 Drives: 10 370Z T/S M6 Rep Power: 16	Before i put my new exhaust on i pulled off my HFC's to install the gaskets between the cats and the stock exhaust mani's... i got them off without having to go through the engine bay. 2 of the 3 bolts on each side i got off using an 2 open end wrenches like the above pic and the other 2 i got off with a impact gun, 14" of extensions, and a universal joint. **** was too easy. But, that was the second time they have been off the car. Not sure if it can be done that way with the stock cats. __________________ Berk HFC & CBE, Stillen G3's, AMS Crank Pulley, JWT Flywheel, 4.08 Gears, UpRev, H&R Springs and 20mm Spacers, JDM Rear Fog, EVO-R Front Lip and CF Upper Cover, 305's

11-21-2010, 10:18 PM	#67 (permalink)
chops A True Z Fanatic Join Date: Oct 2010 Location: NA Posts: 1,732 Drives: NA Rep Power: 22	arghh!! did anyone have trouble with the bolts connecting the cat to the H pipe? i cannot for the life of me get the outside bolts off on both the driver and passenger side. cant get a breaker bar underneath the car either.

12-11-2010, 02:07 PM	#74 (permalink)
cujo Base Member Join Date: Nov 2010 Location: California Posts: 99 Drives: 2010 370z Roadster Rep Power: 15	Where do you put the floor jack to raise the car? You can't put the floor jack on the support-point since this is where the jack stand will go correct? Thanks in advance

12-11-2010, 02:15 PM	#75 (permalink)
CBRich A True Z Fanatic Join Date: Apr 2009 Location: SC Posts: 2,464 Drives: 370Z Rep Power: 544	Look at the very center of the subframe in the front. You see a nib there? Your jack cup should fit perfectly. Now jack from there and put the stands on the sides. If your jack won't reach way back there to get that nub then jack up one side first with the stock jack and then get that nub.

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