NPR vs YCP, Hasting vs NPR for p29 pistons ? - D-series.org

Belette · 12-14-2008, 05:49 AM

I tried to find something about that and I've find almost nothing.

What is the quality of NPR versus YCP p29 pistons, there is somebody got issue with one of them ? They are all made in taiwan anyways they are sold from japan ! I know that much of you use YCP with g16 vitara setup but I haven't seen ycp p29.

Also, what about the quality of hasting vs npr rings set ?

NPR are much cheaper than Yong Chiang Piston, that why I ask about that. Or I must invest for YCP pistons with hasting rings set ?

Thank you guys !!

cory jordan · 12-14-2008, 06:28 AM

http://www.ycpiston.com.tw/p1.html

maybe help

Nippon Vitaras are NOT Teflon Coated as the YCP

Nippons are not made of the same material as the YCP's. YCP's are stronger and made of a diferent aluminum cast(AC8 Grade)

DirtyDseriesWOOT · 12-14-2008, 06:28 AM

no clue man u got me on that one..

Belette · 12-14-2008, 08:05 AM

Quote:

Originally Posted by cory jordan

http://www.ycpiston.com.tw/p1.html

maybe help

Nippon Vitaras are NOT Teflon Coated as the YCP

Nippons are not made of the same material as the YCP's. YCP's are stronger and made of a diferent aluminum cast(AC8 Grade)

SOrry dude, vitara ycp aren't all coated. I bought a set 4 months ago, and they were aluminum only, not teflon coated.

cory jordan · 12-14-2008, 08:25 AM

from what i have read from fjt, and teh interwebz. that is one of the differentiating factors between the two companies i may be wrong.

rushi · 12-14-2008, 11:04 AM

yea YCP pistons are not coated. I bought Vitaras for a fried and PM3 for myself, no coatings at all, plain aluminum.

Got NPR rings for friend, Hastings for me. I binned the Hastings rings immediately. Reason; radial tension is super stiff, and they were chrome plated. Read they're high-friction rings. I got some low-tension ductile-moly racing rings for my engine..

NPR rings felt ok and "normal", I'd have used them.

1.5Slowmatic · 12-14-2008, 02:42 PM

id go ahead adn ask FJT or edd and see what they have to say about this topic

Belette · 12-14-2008, 02:45 PM

Quote:

Originally Posted by 1.5Slowmatic

id go ahead adn ask FJT or edd and see what they have to say about this topic

Ive tried to mail him 3 times, and no fucking answer.

If he don't reply me back soon, I'll buy my things elsewhere, I don't fucking care.

laoruga · 12-14-2008, 02:56 PM

I will not use niether of them I used the nippons and they ran on me on broke and now I am rebuilding the engine and maybe going .20 n the block for using those pistons.

Belette · 12-14-2008, 02:58 PM

???

I won't buy forged for NA setup. I wan't to know how many people have good experiece and bad experience from both of them.

freon480 · 12-14-2008, 03:01 PM

i've used npr rings a few times with no problems. the pistons i got were "evergreen automotive" so i cant comment on that part.

dobbs02si · 12-14-2008, 03:26 PM

Ive used npr pm3's in three different builds(just stock rebuild) and they all still run fine with no issues. Ill be ordering a set of pm7's to run in a 14:1 1.5 build before to long, hopefully it stays together long enough I can tear it down next winter to see how the piston skirts look.

guest · 12-25-2008, 05:14 PM

BUMP!!!!!

is this the old pistons? are they coated now?

and npr's are just a cast piston, nothing special other then a low CR??

boostfreak0885 · 12-25-2008, 05:38 PM

ycp all the way man

Belette · 12-25-2008, 07:05 PM

New ones are all coated ?

cory jordan · 12-25-2008, 07:35 PM

http://hondaswap.com/engine-building...-series-65580/

post number 5 from fjt

http://www.homemadeturbo.com/forum/i...prev_next=prev

number 2 from tuner toys.

i just assumed that was the consensus that they were coated.

cervan · 12-25-2008, 07:52 PM

Ben (fooker) swears by YCP pistons, i havent heard anything bad about them so i wont comment on them. But what i will ask is Why not go forged on N/A? if anything natrually asperated engines have even more pressure and abuse put on the pistons. And pistons are the last place you want to skimp on.

Im using nippon p29's I may have broken ring lands (and cracked rings for all i know) cylinder 3 and 4 have low compression wich is causing a mess of problems with my idle and starting. Another user (allmotorsohc i belive) also had some broken ringlands on his p29's.

guest · 12-25-2008, 08:13 PM

Quote:

Originally Posted by cervan

Ben (fooker) swears by YCP pistons, i havent heard anything bad about them so i wont comment on them. But what i will ask is Why not go forged on N/A? if anything natrually asperated engines have even more pressure and abuse put on the pistons. And pistons are the last place you want to skimp on.

Im using nippon p29's I may have broken ring lands (and cracked rings for all i know) cylinder 3 and 4 have low compression wich is causing a mess of problems with my idle and starting. Another user (allmotorsohc i belive) also had some broken ringlands on his p29's.

interesting. so npr suck then? are the vitara's p29's coated the same w/ the semi forge etc. ??

I resuerected this thread from the dead, cause I was really curious about the npr turbo pistons. if there equal to the vitara capable of 300+ WHP ?

Dominus · 12-26-2008, 06:03 AM

Quote:

Originally Posted by cervan

... But what i will ask is Why not go forged on N/A? if anything natrually asperated engines have even more pressure and abuse put on the pistons. And pistons are the last place you want to skimp on.

Again, glad to read that.
I'll stick with my forged ones...right on!

mightyjoecivic · 12-26-2008, 08:47 AM

well, im using NPR P29's and hastings rings...i'll let you know how they do when i get my A6 together.

12-14-2008, 05:49 AM	#1 (permalink)
Belette Curious George iTrader: (13) Join Date: Nov 2003 Location: St-Denis de Brompton, QC Posts: 3,575 Rep Power: 11 View My Photo Gallery	NPR vs YCP, Hasting vs NPR for p29 pistons ? I tried to find something about that and I've find almost nothing. What is the quality of NPR versus YCP p29 pistons, there is somebody got issue with one of them ? They are all made in taiwan anyways they are sold from japan ! I know that much of you use YCP with g16 vitara setup but I haven't seen ycp p29. Also, what about the quality of hasting vs npr rings set ? NPR are much cheaper than Yong Chiang Piston, that why I ask about that. Or I must invest for YCP pistons with hasting rings set ? Thank you guys !! __________________ Turbo D16y7/8 Setup in building: http://www.d-series.org/forums/vbpic...p?do=view&g=25 Video of my old setup: http://www.youtube.com/watch?v=zN-Fq0WDaks Awesome Photography Thread: http://www.d-series.org/forums/showc...hy-thread.html

12-14-2008, 06:28 AM	#3 (permalink)
DirtyDseriesWOOT D-series PIMP iTrader: (3) Join Date: Nov 2007 Location: Alexandria,LA Posts: 1,360 Rep Power: 6	no clue man u got me on that one.. __________________ 97 civic dx coupe Black !! 11.4@127 403whp 326ftlbs bitch its gonna be way faster by JAN 0 9 http://www.youtube.com/watch?v=5bqYJMXjtqw 94 RHD samba green -SOLD! uhh rep me or somthing! Professional FireFighter

12-14-2008, 02:56 PM	#9 (permalink)
laoruga D-Series cadet iTrader: (2) Join Date: Jan 2007 Location: Puerto Rico Posts: 411 Rep Power: 6	I will not use niether of them I used the nippons and they ran on me on broke and now I am rebuilding the engine and maybe going .20 n the block for using those pistons. __________________ Got a few things in the engine bay Still keeping A/c live in Puerto Rico..

12-14-2008, 02:58 PM	#10 (permalink)
Belette Curious George iTrader: (13) Join Date: Nov 2003 Location: St-Denis de Brompton, QC Posts: 3,575 Rep Power: 11 View My Photo Gallery	??? I won't buy forged for NA setup. I wan't to know how many people have good experiece and bad experience from both of them. __________________ Turbo D16y7/8 Setup in building: http://www.d-series.org/forums/vbpic...p?do=view&g=25 Video of my old setup: http://www.youtube.com/watch?v=zN-Fq0WDaks Awesome Photography Thread: http://www.d-series.org/forums/showc...hy-thread.html

12-14-2008, 03:01 PM	#11 (permalink)
freon480 D-series PIMP iTrader: (2) Join Date: Oct 2007 Location: NEW YORK Posts: 1,449 Rep Power: 7 View My Photo Gallery	i've used npr rings a few times with no problems. the pistons i got were "evergreen automotive" so i cant comment on that part. __________________ my build --->http://www.d-series.org/forums/showcase/87747-my-crx.html NEW UPDATE INCLUDING BISIMOTO LEVEL 3 CAM!

12-14-2008, 03:26 PM	#12 (permalink)
dobbs02si D-series lover iTrader: (1) Join Date: Dec 2006 Posts: 237 Rep Power: 6	Ive used npr pm3's in three different builds(just stock rebuild) and they all still run fine with no issues. Ill be ordering a set of pm7's to run in a 14:1 1.5 build before to long, hopefully it stays together long enough I can tear it down next winter to see how the piston skirts look.

12-25-2008, 05:14 PM	#13 (permalink)
guest my name says Guest, but Im really a MEMBER iTrader: (44) Join Date: Apr 2004 Location: WA Posts: 9,417 Rep Power: 14	BUMP!!!!! is this the old pistons? are they coated now? and npr's are just a cast piston, nothing special other then a low CR?? __________________ Suga Rashad Evans! XP4EVER Fuck summer! Fuck people that say "you know" or "you know what I mean" a lot Fuck lifted trucks Fuck people that drive suv's and trucks around town and don't even use them for work or off roading or traveling. Fuck alfa's Fuck Lexus's Honda > Toyota Twist off cap = shit beer even kokanee

12-25-2008, 05:38 PM	#14 (permalink)
boostfreak0885 D-series G0D iTrader: (13) Join Date: Jan 2008 Location: delaware Posts: 6,978 Rep Power: 13	ycp all the way man __________________ my new and improved build... check it out http://d-series.org/forums/forced-in...-build-14.html best time so far 11.201 at 128mph with a 1.79 60 foot.. damn i need traction, best trap speed is 129mph. 26psi h1c NEW best 60' 1.56!!!

12-25-2008, 07:05 PM	#15 (permalink)
Belette Curious George iTrader: (13) Join Date: Nov 2003 Location: St-Denis de Brompton, QC Posts: 3,575 Rep Power: 11 View My Photo Gallery	New ones are all coated ? __________________ Turbo D16y7/8 Setup in building: http://www.d-series.org/forums/vbpic...p?do=view&g=25 Video of my old setup: http://www.youtube.com/watch?v=zN-Fq0WDaks Awesome Photography Thread: http://www.d-series.org/forums/showc...hy-thread.html

12-26-2008, 08:47 AM	#20 (permalink)
mightyjoecivic All powerful D-series member iTrader: (12) Join Date: May 2007 Location: Portsmouth, Va. Posts: 4,019 Rep Power: 16 View My Photo Gallery	well, im using NPR P29's and hastings rings...i'll let you know how they do when i get my A6 together. __________________ 1993 Ford Cobra #1252 of 4993-- Bone stock Insert 95' 4dr civic...soon

Remove Advertisements Sponsored Links
D-Series.org Advertisement

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode