Picked up a NEW engine, need some forged pisotns

**shwine617** · 3-26-08, 20:00

Sorry guys, I haven't been on in a while, I've been very busy. I picked up a brand new assembled kia sportage bottom end, I need to find some forged pistons for it. I am thinking about using some 93+ 4g63 8.5-1 .040 pistons. Should make close to 8-1 and I think that would be good for the hx-35.

**roth251** · 3-26-08, 21:19

Why not get some forged sportage pistons... I got some wiseco's for my build.

**shwine617** · 3-26-08, 22:57

how much were they, did they come with pins and rings?

**fredio54** · 3-27-08, 2:31

How much did that cost man, thats cool :-)

Lots of pics please!

Fred.

**Dutch** · 3-27-08, 3:00

good pick up Schwine.

can u order 2 sets of those pistons?

**roth251** · 3-27-08, 3:30

Quote:

Originally Posted by shwine617

how much were they, did they come with pins and rings?

Order details

I got them from Import Performance Parts - Import Performance Engine & Racing Parts

Ross pistons
Import Performance Parts - ROSS Custom Pistons for Kia

They were $500 USD with pins and rings

**Casejunkie** · 3-27-08, 5:55

A brand new shortblock? Damn what did payed for that?

**STW** · 3-27-08, 9:16

Definitely go for custom KIA pistons, those Mitsu pistons have evil compression height!

Talked about it with my machinist just yesterday, he strongly advised keeping the squish gap between 0.8 and 1.2mm, under or over and the risk of detonation will be much greater. No wonder the MLS gasket is in the thickness it is

**shwine617** · 3-27-08, 11:03

roth251, you said you got Wiseco pistons, I guess you meant Ross pistons. Do you have pics of them? thanks for the info.

I got the bottom end for $100 plus $170 shipping, so $270. It needs a little cleaning up because it was sitting in the guys shed in the box. I am going to pull the rods and pistons today and give it a good cleaning. pics to come...

**shqs89gt** · 3-27-08, 11:15

Nice find Shwine!!!

**fredio54** · 3-27-08, 14:24

Nice score.

STW, not sure I agree about that, Ideally you want your pistons kissing the head at redline + 1 rpm. That gives maximum velocity to the gas and maximum turbulence and therefore minimum advance needed for the same PCP. All that boils down to less chance of knock with the same power :-)

Fred.

**roth251** · 3-28-08, 0:43

Quote:

Originally Posted by shwine617

roth251, you said you got Wiseco pistons, I guess you meant Ross pistons. Do you have pics of them? thanks for the info.

I got the bottom end for $100 plus $170 shipping, so $270. It needs a little cleaning up because it was sitting in the guys shed in the box. I am going to pull the rods and pistons today and give it a good cleaning. pics to come...

They are wiseco just ask for them.

Pics

**Bo0sted_Rafi** · 4-3-08, 21:29

Quote:

Originally Posted by STW

Definitely go for custom KIA pistons, those Mitsu pistons have evil compression height!

Talked about it with my machinist just yesterday, he strongly advised keeping the squish gap between 0.8 and 1.2mm, under or over and the risk of detonation will be much greater. No wonder the MLS gasket is in the thickness it is

Well, for those who thinks you gonna have problems if you use 4g63 pistons, i dont know why they said that. You need to use the 2nd gen pistons of the 4g63, they are 9.1 of CR but in our engine, thats not true. If i got the opportunity, i wish to make a High Comp pistons forged to run turboed @ 25-30psi

If you got a good tune, you dont have problems with that.

**fredio54** · 4-4-08, 2:54

Quote:

Originally Posted by Bo0sted_Rafi

Well, for those who thinks you gonna have problems if you use 4g63 pistons, i dont know why they said that.

Because you get no quench! NO great tuning can make up for that. It falls under the same umbrella as extra thick headgaskets to lower compression. You can lose power and make it less safe that way...

You can't beat the laws of physics with tuning. You can only optimise up against the limits. Without quench those limits are significantly lower. If all parameters are the same except quench or not (same compression, octane, etc) you will make more power more safely with quench. You simply can not argue that.

Fred.

**Casejunkie** · 4-4-08, 4:57

Quote:

Originally Posted by Dutch

good pick up Schwine.

can u order 2 sets of those pistons?

Those look the same as the link posted by Mister Mazda on the dutch board, dutch. I'm going to order that set when I have my wagon and MX ready.

3-26-08, 20:00	#1 (permalink)
shwine617 Join Date: Aug 2004 Location: Spotswood, NJ, USA Age: 23 iTrader: (0)	Picked up a NEW engine, need some forged pisotns Sorry guys, I haven't been on in a while, I've been very busy. I picked up a brand new assembled kia sportage bottom end, I need to find some forged pistons for it. I am thinking about using some 93+ 4g63 8.5-1 .040 pistons. Should make close to 8-1 and I think that would be good for the hx-35. Last edited by shwine617 : 3-26-08 at 20:59.
	90 MX6 GT http://www.cardomain.com/ride/2036393 Stock: 15.446 @ 88.78 F2T Best: 12.71 @ 104 FE3T: 11.941 @ 99.03 (missed 4th) Best MPH: 12.24 @ 117.03 videos:http://videos.streetfire.net/uploaded/Shwine617.htm

3-26-08, 22:57	#3 (permalink)
shwine617 Join Date: Aug 2004 Location: Spotswood, NJ, USA Age: 23 iTrader: (0)	how much were they, did they come with pins and rings?
	90 MX6 GT http://www.cardomain.com/ride/2036393 Stock: 15.446 @ 88.78 F2T Best: 12.71 @ 104 FE3T: 11.941 @ 99.03 (missed 4th) Best MPH: 12.24 @ 117.03 videos:http://videos.streetfire.net/uploaded/Shwine617.htm

3-27-08, 2:31	#4 (permalink)
fredio54 Join Date: Aug 2004 Location: Auckland, New Zealand iTrader: (1)	How much did that cost man, thats cool :-) Lots of pics please! Fred.
	DIYEFI.org - TRUE DIY engine management Mazda FE3/FE-DOHC Master Index Thread (work in progress) Mazda truck with FE-DOHC/FE3 "BIG like your house" Holset Turbo drinking 2.2 litres of fuel per minute ~= 385hp crank RIP SleepCounter :-( we will miss you! - RIP fredio54 :-( will we miss you?

3-27-08, 5:55	#7 (permalink)
Casejunkie Join Date: Dec 2005 Location: Bavel, The Netherlands Age: 23 iTrader: (1)	A brand new shortblock? Damn what did payed for that?
	Sorry for my bad english. Wagon: FE-DOHC, dutch fstb, 17" rims, lot's of ice MX-6 GT 4WS: F2T, dutch fstb 17" rims, TWR sideskirts

3-27-08, 9:16	#8 (permalink)
STW Join Date: Jan 2006 Location: Turku, Finland Age: 31 iTrader: (0)	Definitely go for custom KIA pistons, those Mitsu pistons have evil compression height! Talked about it with my machinist just yesterday, he strongly advised keeping the squish gap between 0.8 and 1.2mm, under or over and the risk of detonation will be much greater. No wonder the MLS gasket is in the thickness it is
	626 '88 Wagon, turbo 2.0 DOHC My vBGarage My ride at CarDomain

3-26-08, 21:19	#2 (permalink)
roth251 Join Date: Mar 2005 Location: Sydney, Australia Age: 35 iTrader: (0)	Why not get some forged sportage pistons... I got some wiseco's for my build.

3-27-08, 11:03	#9 (permalink)
shwine617 Join Date: Aug 2004 Location: Spotswood, NJ, USA Age: 23 iTrader: (0)	roth251, you said you got Wiseco pistons, I guess you meant Ross pistons. Do you have pics of them? thanks for the info. I got the bottom end for $100 plus $170 shipping, so $270. It needs a little cleaning up because it was sitting in the guys shed in the box. I am going to pull the rods and pistons today and give it a good cleaning. pics to come...
	90 MX6 GT http://www.cardomain.com/ride/2036393 Stock: 15.446 @ 88.78 F2T Best: 12.71 @ 104 FE3T: 11.941 @ 99.03 (missed 4th) Best MPH: 12.24 @ 117.03 videos:http://videos.streetfire.net/uploaded/Shwine617.htm

3-27-08, 11:15	#10 (permalink)
shqs89gt Join Date: Nov 2003 Location: Parkville, MD, USA Age: 26 iTrader: (0)	Nice find Shwine!!!
	89 PGT weekend racecar,12.55@110mph,114mph best trap speed,slow.a few mods RIP F2T,donated to a friend,now FE3T,times to come soon. 89 PGT DD,15.0@97,slower,a few mods. 91PGT,weekend cruiser,show car.

3-27-08, 14:24	#11 (permalink)
fredio54 Join Date: Aug 2004 Location: Auckland, New Zealand iTrader: (1)	Nice score. STW, not sure I agree about that, Ideally you want your pistons kissing the head at redline + 1 rpm. That gives maximum velocity to the gas and maximum turbulence and therefore minimum advance needed for the same PCP. All that boils down to less chance of knock with the same power :-) Fred.
	DIYEFI.org - TRUE DIY engine management Mazda FE3/FE-DOHC Master Index Thread (work in progress) Mazda truck with FE-DOHC/FE3 "BIG like your house" Holset Turbo drinking 2.2 litres of fuel per minute ~= 385hp crank RIP SleepCounter :-( we will miss you! - RIP fredio54 :-( will we miss you?