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TRD high compression pistons #85214 Jan 17, 8:35pm Jan 17, 8:35pm
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TRD high compression pistons
Has anyone done these? http://www.celicasg.com/technicals/2zzge/
How much do they cost?


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Re: TRD high compression pistons [Re: SCOTT03] #85215 Jan 17, 8:45pm Jan 17, 8:45pm
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I have dreamed of doing that to my Celica! Others wish for a better turbo settup, but I would love to do that. The gains seem mild at best according to the link. I still would do it with a knowledgeable mechanic friend (cheap install).

Re: TRD high compression pistons [Re: SCOTT03] #85216 Jan 18, 6:48am Jan 18, 6:48am
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tha looks cool...i want one now...

Re: TRD high compression pistons [Re: SCOTT03] #85217 Jan 18, 8:48am Jan 18, 8:48am
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US$1700 for a complete set. Comes with pistons and rings. Very high quality product.

Does your area sells 98 octane fuel? It needs at least 98 to run.

If you want I can get it shipped to your door step with US$1600.

email me matthewloh@celicasg.com

I will give you more detail about the setup.

Re: TRD high compression pistons [Re: TRD_sports_M] #85218 Jan 18, 8:51am Jan 18, 8:51am
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Originally Posted by TRD_sports_M

US$1700 for a complete set. Comes with pistons and rings. Very high quality product.

Does your area sells 98 octane fuel? It needs at least 98 to run.

If you want I can get it shipped to your door step with US$1600.

email me matthewloh@celicasg.com


I will give you more detail about the setup.

Keep talking, you have my attention.


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Re: TRD high compression pistons [Re: SCOTT03] #85219 Jan 18, 9:50am Jan 18, 9:50am
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yea i would like one too but thats a lot cash


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Re: TRD high compression pistons [Re: Death] #85220 Jan 18, 10:05am Jan 18, 10:05am
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as the instruction from TRD stated, it still can be ran on stock ECU. No one in my country thinks that's possible with 98 octane petrol. Until one of my friend did it. He is very happy with the result. Boy i tell you ... his car pulls man!!!

If fact, 13.0:1 compression ratio is for race car use, and its a matter of tunning the car if you want more power.

When the car hits lift ... its your balls against the machine.


Re: TRD high compression pistons [Re: SCOTT03] #85221 Jan 18, 10:59am Jan 18, 10:59am
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so it won't run off typical premium 93 octane?


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Re: TRD high compression pistons [Re: SCOTT03] #85222 Jan 18, 11:07am Jan 18, 11:07am
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20 hp jus from pistons and rings??? thats pretty good for bout 1700 you said???

Re: TRD high compression pistons [Re: SCOTT03] #85223 Jan 18, 2:43pm Jan 18, 2:43pm
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does anyone kno a site that has these for sale???

Re: TRD high compression pistons [Re: kimchiman201] #85224 Jan 18, 3:28pm Jan 18, 3:28pm
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Originally Posted by kimchiman201
does anyone kno a site that has these for sale???

I have 1 set for sale 700.00 dollars, brand new, pistons and rings

Re: TRD high compression pistons [Re: SCOTT03] #85225 Jan 18, 3:29pm Jan 18, 3:29pm
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Re: TRD high compression pistons [Re: SCOTT03] #85226 Jan 18, 3:29pm Jan 18, 3:29pm
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where'd you get em??? i would prefer a site...

Re: TRD high compression pistons [Re: SCOTT03] #85227 Jan 18, 3:30pm Jan 18, 3:30pm
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Re: TRD high compression pistons [Re: SCOTT03] #85228 Jan 18, 3:31pm Jan 18, 3:31pm
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Re: TRD high compression pistons [Re: kimchiman201] #85229 Jan 18, 3:34pm Jan 18, 3:34pm
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Originally Posted by kimchiman201
where'd you get em??? i would prefer a site...
my friend works for toyota

Re: TRD high compression pistons [Re: SCOTT03] #85230 Jan 18, 3:35pm Jan 18, 3:35pm
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Re: TRD high compression pistons [Re: SCOTT03] #85231 Jan 18, 3:37pm Jan 18, 3:37pm
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Re: TRD high compression pistons [Re: castrogtstoyo] #85232 Jan 18, 5:20pm Jan 18, 5:20pm
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that is more than half the price from Japan and what celicasg.com offers! Damn! Are you sure about that?

Re: TRD high compression pistons [Re: SCOTT03] #85233 Jan 18, 5:29pm Jan 18, 5:29pm
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cant find it for sale on that site...do you kno anywhere that sells these (i prefer website)???

Re: TRD high compression pistons [Re: SCOTT03] #85234 Jan 18, 5:35pm Jan 18, 5:35pm
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Will it or will it not run off 93 octane??


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Re: TRD high compression pistons [Re: SCOTT03] #85235 Jan 18, 5:56pm Jan 18, 5:56pm
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Originally Posted by SCOTT03
so it won't run off typical premium 93 octane?


Doubt it, not very well anyways, with a 13:1 compression, you will get detonation on 93 octane, unless the ECU is retuned and the fuel is enriched somehow. without such tuning, you would need to run 98 or 100 octane racing fuel to keep the knock away. with race gas around here selling for like, $5 and up for a gallon, I'd rather get it properly tuned after installation and save on fuel costs.

I'm suprised toyota makes this piston set, but doesn't offer a new ECU to use it on pump gas, but in Japan, 98 octane is considered premium fuel, so they don't need the ECU.

However, companies like Brash Boy already have ECU's pre-tuned for running 13:1 compression pistons, and have US domestic vershions available, but I'm sure they aren't cheap.


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Re: TRD high compression pistons [Re: kimchiman201] #85236 Jan 18, 6:02pm Jan 18, 6:02pm
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Originally Posted by kimchiman201
cant find it for sale on that site...do you kno anywhere that sells these (i prefer website)???


http://www.celicasg.com/groupbuy/trdparts/

Re: TRD high compression pistons [Re: SCOTT03] #85237 Jan 18, 6:04pm Jan 18, 6:04pm
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Im sure the a/f ratio would have to come down to 12.5:1 at least if you were to run 93 octane. Say bye bye to gas mileage as you know it.

Re: TRD high compression pistons [Re: Rave669] #85238 Jan 18, 6:10pm Jan 18, 6:10pm
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Originally Posted by Rave669
Originally Posted by SCOTT03
so it won't run off typical premium 93 octane?


Doubt it, not very well anyways, with a 13:1 compression, you will get detonation on 93 octane, unless the ECU is retuned and the fuel is enriched somehow. without such tuning, you would need to run 98 or 100 octane racing fuel to keep the knock away. with race gas around here selling for like, $5 and up for a gallon, I'd rather get it properly tuned after installation and save on fuel costs.

I'm suprised toyota makes this piston set, but doesn't offer a new ECU to use it on pump gas, but in Japan, 98 octane is considered premium fuel, so they don't need the ECU.

However, companies like Brash Boy already have ECU's pre-tuned for running 13:1 compression pistons, and have US domestic vershions available, but I'm sure they aren't cheap.


The reason for using the stock ECU is because of the programming in the stock chip. Its able to retune by itself and self learn.

But ECU like the power FC is not that clever, it requires a good tunner to imput a good map.




Re: TRD high compression pistons [Re: SCOTT03] #85239 Jan 19, 6:18am Jan 19, 6:18am
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how much does 1 yen equal in USD confused confused???
also do you hav a site to those pre-tuned ECU's???

Re: TRD high compression pistons [Re: SCOTT03] #85240 Jan 19, 9:08am Jan 19, 9:08am
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anyobody??? wave wave

Re: TRD high compression pistons [Re: SCOTT03] #85241 Jan 19, 9:28am Jan 19, 9:28am
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So how much power do you get out of it?


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Re: TRD high compression pistons [Re: SCOTT03] #85242 Jan 19, 11:08am Jan 19, 11:08am
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bout 20 horses

Re: TRD high compression pistons [Re: SCOTT03] #85243 Jan 19, 12:00pm Jan 19, 12:00pm
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There are about 600-700 yen to 1 USD. Don't quote me though. Go to a currency exchange website to find out the exact amount

Re: TRD high compression pistons [Re: Steven] #85244 Jan 19, 12:01pm Jan 19, 12:01pm
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i would be all over it for 20 horses . . . they should make em for a GT.

Re: TRD high compression pistons [Re: SCOTT03] #85245 Jan 19, 12:14pm Jan 19, 12:14pm
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So would everybody else. The problem is that you have to use expensive high octane fuel.

Re: TRD high compression pistons [Re: Steven] #85246 Jan 19, 12:14pm Jan 19, 12:14pm
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God i can't but wonder what my exhaust would sound like with a 12:1 compression!

Re: TRD high compression pistons [Re: SCOTT03] #85247 Jan 19, 12:17pm Jan 19, 12:17pm
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try unavailble high octane fuel


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Re: TRD high compression pistons [Re: SCOTT03] #85248 Jan 19, 12:26pm Jan 19, 12:26pm
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i can buy 110 octane here at a BP station near the track. its like 4 somthing a gallon though.

Re: TRD high compression pistons [Re: SCOTT03] #85249 Jan 19, 12:53pm Jan 19, 12:53pm
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wow all i can get is 93 octane


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Re: TRD high compression pistons [Re: SCOTT03] #85250 Jan 19, 1:17pm Jan 19, 1:17pm
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Call your local motorcycle shops to see if they have high octane. They should have it! also try 76 gas stations! You gotta ask for it though because I believe they sell them in 5 gallon drums.

Re: TRD high compression pistons [Re: SCOTT03] #85251 Jan 19, 2:20pm Jan 19, 2:20pm
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So you say 98oc. gas is needed for max. effect?

If it's so... that wouldn't be a problem here in Slovenia thumbsup


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Re: TRD high compression pistons [Re: SCOTT03] #85252 Jan 19, 2:28pm Jan 19, 2:28pm
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oh man, having that on the car would be so awesome.


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Re: TRD high compression pistons [Re: SCOTT03] #85253 Jan 19, 2:51pm Jan 19, 2:51pm
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Well, that's still not the only solution, you could buy a power FC and tune it for such high compression. make the fuel mixture a bit more rich and you shouldn't detonate. Brash boy also makes some nice ECU upgrades.

You could get an adjustable Fuel Pressure Regulator, and try to enrich the fuel that way, but our fuel systems don't easily accomidate that option. you could go with bigger injectors too, but injector flow rate would have to be properly matched to your setup, plus, you'll probably need a better fuel pump.

True, the factory ECU is of the learning type, but you must realize that if you run those pistons, you'll still have problems, as the factory pistons are 11.5:1 compression, you suddenly change them out for 13:1 pistons, and you're still gonna get knock. There's only so much the ECU can do on it's own, and it won't be able to compensate for the extra squish in the cylinders, when the A/F mixture gets compressed that much, it'll detonate from compression alone, and the ECU can't fix that (since it's a physical change in the piston that causes it). while it may work without modification on 93 octane, you will probably get some knock and a CEL. too bad resistor mods and SAFC modules don't work, this would be an easy solution to the problem.

98+ octane fuel is far more stable, so the fuel won't pre-detonate. this is why your fuel choice is critical with the factory ECU. you could run something like NX Power Booster in a tank of 93 octane to get the same result, but in the end, it'll be just as expensive to fill up your celica.

Your fuel economy shouldn't suffer much, if anything, it'll improve a bit with a higher compression (it's more efficient, and the fuel will burn more completely) where it hurts you is in the pocket, as it will cost more to fill the tank than it did before the swap. fuel consumption rate should stay the same, unless of course, you are using fuel enrichment of some sort, in which case, you will be using more fuel in each combustion cycle to keep the mixture rich.

It basically comes down to two choices, pay more at the pump, or enrich the fuel mixture and increase fuel consumption, either way, it'll cost you more for fuel.

I suppose that's why the pistons are specified "For Racing Purposes only".

It may sound silly, but someone should write Super Steet magazaine, and ask them a tech question regarding these. Say you want to run 13:1 TRD pistons in your 2ZZGE celica, but don't want to pay out the nose for racing fuel. Tell them the problems with S-AFC and similar units on our cars, and request a solution to the fuel enrichment issue. They actually have some good responses for their Tech Q&A submissions, and I'm sure they could come up with an idea or two.

Also, you could ask the guys at Monkeywrench Racing, they may have some ideas (one being the Power FC)

BTW guys, you probably won't get 20 HP from these pistons alone...

According to the site, the 2ZZ's in japan that showed those gains got the full treatment, including TRD Flywheel, Header, Exhaust, Air Filter and the cylinder head was also ported. All these mods were done in-house at TRD direct shop in Hachiozi city, Tokyo.

The pistons alone, so long as you have a good Intake and exhaust system, should be good for about 10 HP, more if the engine is tuned for them properly.


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Re: TRD high compression pistons [Re: Rave669] #85254 Mar 15, 11:51pm Mar 15, 11:51pm
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according to TRD Japans webpage the kit is more then just the pistons, the kit also includes the TRD Header, TRD Muffler, TRD Airfilter, and the TRD FLywheel. not to mention it says something about the valves (not real sure, my English to Japanese isnt that good) and its something like 210PS give or take which comes out to be just shy of 200HP. The whole kit is 550,000yen

Re: TRD high compression pistons [Re: SCOTT03] #85255 Mar 16, 12:13am Mar 16, 12:13am
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why not just get a Power FC and tune it? That should solve the problem... confused

Re: TRD high compression pistons [Re: Sultan] #85256 Mar 17, 12:09am Mar 17, 12:09am
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Hmm, these pistons sound tempting. Especially if you can run the Stock ECU.

In Australia, we have 91 Octane regular unleaded, 95 Octane Premium (which you have to run in the celica) and a couple of service stations (Shell, Mobil, BP) have 98 Octane Premium for the same price as normal Premium. So no worries with detonation.

The Aussie spec Celicas also put out about 10Hp more than the US Spec ones (190HP specced by Toyota). Probably only because we have a bit better fuel. There are no intrusive Smog laws and we don't have to have EGR either.

Re: TRD high compression pistons [Re: PsychoFox] #85257 Mar 17, 12:13am Mar 17, 12:13am
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the guy i talked to said that it might be better to get a J-Spec ECU and run 96 plus octane

Re: TRD high compression pistons [Re: PsychoFox] #85258 Mar 17, 12:19am Mar 17, 12:19am
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Originally Posted by PsychoFox
Hmm, these pistons sound tempting. Especially if you can run the Stock ECU.

In Australia, we have 91 Octane regular unleaded, 95 Octane Premium (which you have to run in the celica) and a couple of service stations (Shell, Mobil, BP) have 98 Octane Premium for the same price as normal Premium. So no worries with detonation.

The Aussie spec Celicas also put out about 10Hp more than the US Spec ones (190HP specced by Toyota). Probably only because we have a bit better fuel. There are no intrusive Smog laws and we don't have to have EGR either.


you guys just have a different set of fuel maps than the US spec celi's ... go for the pistons thumbsup

Re: TRD high compression pistons [Re: SCOTT03] #85259 Mar 18, 9:23pm Mar 18, 9:23pm
Joined: Feb 2004
Posts: 9
NSW, Australia
2000 Silver Toyota Celica ZR
PsychoFox
New Member
2000 Toyota Celica ZR
PsychoFox
2000 Silver Toyota Celica ZR
New Member
2000 Toyota Celica ZR

Joined: Feb 2004
Posts: 9
NSW, Australia
This is a translation from the TRD Japan site on the TRD 2ZZ-GE Engine and what upgrades you can get. It lists the pistons, rings, flywheel and Header. I've put the pics up as well.
The table didn't come out too good (looks fine on IE, but not inserted into the forum)
Complete price
The installing part job and the like which is included in complete price
TRD part specification
Usually including tax unit cost (circle)
Necessary quantity
Equivalent of 1 usually price including tax (circle)
The right description contents set
XXYEN 577,500 (including tax)
(Tax removal \550,000)
High compression piston
Compression ratio approximately 13.0 (genuine 11.5) forged part approximately 70g light weight conversions
42,000
4
168,000
Piston ring set
Friction decrease
5,250
4
21,000
Exhaust manifold
4-2-1 type pipe long optimization
105,000
1
105,000
Lightweight flywheel
Mass 27% light weight conversion moment of inertia 22% decrease
60,900
1
60,900
Sport air filter -
Inhalation resistance decrease
9,450
1
9,450
Usually price (1 unit) total of the installing TRD part
364,350
Engine ASSY removal and re-installation
-
IN&EX port processing
-
TRD piston & piston ring installation
-
Exhaust manifold installing
-
Lightweight flywheel installing
-
Sport air filter - installing
-
In addition necessary genuine part and oils and fats etc.
-
* Other than describing there are times when cost is required with the condition of the engine.
*[u]Genuine E.C.U. [/u]Because[u]of correspondence[/u], E.C.U. There is no setting.
* Other than the above-mentioned finished product installing,[u]high response muffler Ver.S for the below-mentioned 2ZZ-GE on-board car simultaneous installing time, the highest output approximately 15kW (20ps) and largest torque 20Nm (2kgfm) improvement[/u].
(Measurement value is TRD bench test value. There is a difference in improvement generation depending upon the vehicle.)
* As for details of the above-mentioned each part the sport air filter please refer to each page.


* High response muffler Ver.S for 2ZZ-GE on-board car
* As for details, please refer to the page of high response muffler Ver. S

1869884556-2zz.jpg
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