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Looking for aftermarket Rods and Pistons

4115 Views 54 Replies 16 Participants Last post by  UFB
Does anyone know of a company that makes rods and pistons for the 1.5 SOHC alpha motor. Or will I have to get more custom work done? I am building my bottom end for turbo.


<hr noshade width=60% size=1 align=left>"Close with and destroy the Enemy"
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I have my S-AFC with 440cc High Ohm injectors which should be ok for low boost applications.
A couple of people which are running 8 psi on stock internals seem to be fine.Onpool was running 10PSI on stock internals
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I also have a MSN Ignition which should be good to retard the Timing.
Im thinking 2-3 degrees for every pound of Boost.
Im estimating but only on the Dyno you can tell!


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4Door!!
You have a point its better to be safe than sorry.Like i said i will consider the Pistons you sell
BTW,I was wondering if you can get 1.8L Pistons cause im not running a 2.0L
If its not possible i will then be forced to get a 2.0L block from the scrap yard


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we sell the pauter rods and they have been tested various times in most of the high boost cars in korea such as spin wheel's drag car and champion........ these are made from the same forgings as carillo and crower. these are as lightly different configuration and end up being a little stronger than crower. these are used in several NIRA top cars running under the 10 second mark. These are available now for 700.00 a set. Pistons are available from JE and a few others depending upon the boost and or NA......

thanks
dan


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Thanks Random, Idiot proof was the description I was looking for!! <img src=/images/forums/snitz/thumbup.gif width=25 height=18 border=0>

Skierd - Please would you provide us with the tech papers that describe "pressure and volume relativity" It should be available in the 2nd year physics and thermodynamics university outline - then come post the relation between pressure in a container with a certain volume compaired to a container pressurised at the same pressure with a larger volume. That would be great! <img src=/images/forums/snitz/finger.gif width=33 height=15 border=0>


<hr width=60% noshade size=1 align=left>Tiburon Turbo 350KW and 700NM AKA Black Monster
i'm buying my physics book in april, i'll let u know if u remind me, lol.


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<b>KORE Crew #19</b>

"It's not the contest between racers that really matters, but the abstract dialogue between the soul of a racer and his machine." -Racer X
Skierd - Shotto man

What are you studying anyway?



<hr width=60% noshade size=1 align=left>Tiburon Turbo 350KW and 700NM AKA Black Monster
Is there a different in the 1.8 blocks and the 2.0 blocks and if so wich one is stronger for a good turbo build up.And are the heads the same?


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Mechanical Engineering. I still have a long way to go tho.<img src=/images/forums/snitz/thumbup.gif width=25 height=18 border=0>


<hr width=60% noshade size=1 align=left><img src="http://www.freakygamers.com/smilies/s2/games/dbz/dragonball-piccilo2.gif">

<b>KORE Crew #19</b>

"It's not the contest between racers that really matters, but the abstract dialogue between the soul of a racer and his machine." -Racer X
<BLOCKQUOTE id=quote>quote:<hr height=1 noshade id=quote>
Is there a different in the 1.8 blocks and the 2.0 blocks and if so wich one is stronger for a good turbo build up.And are the heads the same?


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The 1.8 and 2.0L Blocks are identical as well as the Cylinder Head!!
The only difference is that the 2.0L has a longer stroke tahn the 1.8L.This also means the crank is also different<img src=/images/forums/snitz/thumbup.gif width=25 height=18 border=0><img src=/images/forums/snitz/thumbup.gif width=25 height=18 border=0><img src=/images/forums/snitz/thumbup.gif width=25 height=18 border=0><img src=/images/forums/snitz/thumbup.gif width=25 height=18 border=0><img src=/images/forums/snitz/thumbup.gif width=25 height=18 border=0>


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8.2:1 does seem kinda low, when I looke at the Lancer and then Turbo Beetle, and such I see 8.9:1.

I am jsut worried about having no go from the stop light to stop light, when the car reaches a blazing 20mph :)


<hr width=60% noshade size=1 align=left>"Awwww! Gawd damn! My "H" is gone, Whats the point of owning a Hyundai if ya cant show it off?
But Shadohh, you have to remember those cars are running at low boost and in order to with higher boost, pistons will need to be swapped out.


<hr width=60% noshade size=1 align=left>"Hey, if my prize is your foot up my arse... its still a prize.... " - <b>WhoopOi</b>

<a href="http://shop.hyundaiperformance.com">Shop.HyundaiPerformance.Com</a>, your one-stop shop for Hyundai performance parts (coming soon)
There are too many variables to say what is too high and what is too low for compression ratios.

Some cars can run obscene amounts of boost on stock compression ratios if given enough good fuel. Look at the 600+ hp 20+psi stock block, stock head Supras. Even the "high compression" stock piston turbo beetles can tolerate 15+ psi with the proper fuel tuning.

All things being equal. A higher compression engine running less boost will probably make slightly MORE power in the "stoplight to stoplight" low rev range and slightly LESS power in the upper rev range than a lower compression engine running more boost. Of course it all depends on the compression ratio and boost differences.


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Can I just add that static compression means jack **** in the real world anyway.

Dynamic compression is often where the detonation game is lost and won. With the use of vernier cam gears it is possible to dial in and dial out dynamic compression.

So to conclude what has pretty much been already mentioned is that engines and turbochargers/superchargers are a complete system and affect each others operation. What works on one motor doesn't necessarily work on another.

Spool and other turbo characteristics are so heavilly influenced by external factors (like tuning) that it is virtually impossible to make general statements about what works and what doesn't.

The proof is in the pudding...


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I'd have to say that if there is anything more important than anything else, it would be tuning.

Tuning, tuning, tuning. Remember that if you plan on going turbo <img src=/images/forums/snitz/thumbup.gif width=25 height=18 border=0>.


<hr width=60% noshade size=1 align=left>"Hey, if my prize is your foot up my arse... its still a prize.... " - <b>WhoopOi</b>

<a href="http://shop.hyundaiperformance.com">Shop.HyundaiPerformance.Com</a>, your one-stop shop for Hyundai performance parts (coming soon)
WELL SAID XLR8 - !!!

4DoorGL - My point EXACTLY, that is why almost all tuners techniques and curves are NOT public knowledge.


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