Prius Pistons????? - Page 2 - Toyota Yaris Forums

hatchbackkid82 · 03-21-2009, 09:35 PM

Alright anyone know where i can get a set from i been shopping around no luck

Sabretooth · 03-21-2009, 09:50 PM

http://www.trademotion.com/partlocat...layCatalogid=0

Partznet.com is your friend.
It seems that like it would run about 200 with shipping, for NEW pistons out a 06 prius, not including if you found them used, via Ebay or a salvage site...

hatchbackkid82 · 03-21-2009, 09:57 PM

thanks

KCALB SIRAY · 03-21-2009, 11:08 PM

Quote:

Originally Posted by Yaris Hilton

The Prius' intake cam holds the valve open longer while the piston goes up on the compression stroke, pushing air back into the intake manifold. Its effective displacement and compression ratio are both reduced this way, but on the power stroke the exhaust valve stays closed while the expanding gas pushes the piston down nearly to the bottom of the stroke. The gas expands through a higher ratio than it's compressed, extracting more energy. Original Atkinson cycle engines did this through a complicated mechanical linkage that actually varied the stroke. The Prius has a mechanical compression ratio of 13:1, while the Yaris has 10.5:1. The "Atkinson Cycle" intake valve hold-open drops the effective compression ratio of the Prius to about the same as the Yaris.

13:1 is a HIGH compression ratio for a spark ignition engine! Some large Diesels run in that compression range. Might work with E85. Might require a different ECU program to make it work on that fuel.

that's the major problem, our ECU does not like to be touched

, not even wined and dined

Quote:

Originally Posted by Sabretooth

http://www.trademotion.com/partlocat...layCatalogid=0

Partznet.com is your friend.
It seems that like it would run about 200 with shipping, for NEW pistons out a 06 prius, not including if you found them used, via Ebay or a salvage site...

Yep, partznet.com

Nexus1155 · 03-25-2009, 12:05 AM

anyone get crackalackin on this yet?

jkuchta · 03-25-2009, 12:32 AM

I'm thinking that the Prius rods are maybe "as strong" as our stock rods, but not much stronger (if at all). The reason I think this is the case is because the redline on the prius motor is like 4500 or 5K rpm.....much less (force-wise) then our engine.

Maitre_Te_Te · 02-20-2011, 01:31 AM

I know the last reply is 2 years ago but finally.... This modification work????

I think the best for this mod is a complet bloc cylinder 1nz-fxe with a head 1nz-fe!

03-21-2009, 09:50 PM	#20
Sabretooth 37HSSV View User's Garage Drives: '11 Mazdaspeed 3 Join Date: Jan 2007 Location: St Cloud FL Posts: 1,395	http://www.trademotion.com/partlocat...layCatalogid=0 Partznet.com is your friend. It seems that like it would run about 200 with shipping, for NEW pistons out a 06 prius, not including if you found them used, via Ebay or a salvage site... __________________ 07 Toyota Yaris Hatchback -sold- 11 Mazdaspeed 3 -SRI/TIP, 3 inch TBI, Custom FMIC, Tuned by Cobb Accessport, HKS ssq2 BOV, Upgraded HPFP- Clean stock look... Killer performance.

02-20-2011, 01:31 AM	#25
Maitre_Te_Te Drives: Yaris 08 Join Date: Mar 2009 Location: Québec Posts: 104	I know the last reply is 2 years ago but finally.... This modification work???? I think the best for this mod is a complet bloc cylinder 1nz-fxe with a head 1nz-fe! Last edited by Maitre_Te_Te; 02-20-2011 at 01:46 AM.

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03-21-2009, 09:35 PM	#19
hatchbackkid82 Drives: . Join Date: Apr 2007 Location: . Posts: 1,828	Alright anyone know where i can get a set from i been shopping around no luck

03-21-2009, 09:57 PM	#21
hatchbackkid82 Drives: . Join Date: Apr 2007 Location: . Posts: 1,828	thanks

03-25-2009, 12:05 AM	#23
Nexus1155 Bathroom + Laptop = <3 Drives: Audi Join Date: Aug 2006 Location: Dorchester Posts: 1,009	anyone get crackalackin on this yet?

03-25-2009, 12:32 AM	#24
jkuchta View User's Garage Drives: 2007 Yaris hatch (red) Join Date: Sep 2007 Location: L.A. Posts: 557	I'm thinking that the Prius rods are maybe "as strong" as our stock rods, but not much stronger (if at all). The reason I think this is the case is because the redline on the prius motor is like 4500 or 5K rpm.....much less (force-wise) then our engine.