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#118580 Mar 7, 4:00pm
Joined: Nov 2002
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Is anyone goin to do this mod? whats our celica gts compression ratio on stock? Cause from what i hear from the shops here is that 13.2 and 13.7 to 1 is very high and can blow up our motors. I want to do this mod but i dont want to mess up my engine. If anyone is goin to do this mod please give me details on what i should do to not make my engine blow.


NO SCADE...RACE'UM CUZ!

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Caleb
2000 Toyota Celica
Caleb
2000 Toyota Celica
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from:
https://celicahobby.com/tech/2002celica.html

the gt's (vvt-i) compression is 10:1 stock

the gts' (vvtli-i) compression is 11.5:1 stock

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just go with a 12...it's what i plan on doing...

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seabass
2000 Toyota Celica GTS
seabass
2000 Toyota Celica GTS
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run jet fuel and you'll be fine

or double stack the head gasket

Last edited by drkramm; Mar 7, 2004 6:27pm.

hey thats a 20 minute phone call
"if i have seen farther it is by standing on the shoulders of giants"
derek: do you know that non dairy cream is flamable
Jennie: ...derek..what did you do

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2000 Toyota Celica
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2000 Toyota Celica
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Ha ha, I don't think i'll be messing with the compression anytime soon.


Knowing the path and choosing the path are two different things.

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Senior Member
2002 Toyota Celica
Senior Member
2002 Toyota Celica
Joined: May 2003
Posts: 522
th3 2zz can handle 31:1 compression just fine, but you7'll have to run racing fuel (98+ octane) if you stick with the factory ECU.

If you get brash boy's 13:1 kit, it comes with a new ECU, and will run just fine on premium pump gas.

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Caleb
2000 Toyota Celica
Caleb
2000 Toyota Celica
Joined: Aug 2003
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Originally Posted by Rave669
th3 2zz can handle 31:1 compression just fine, but you7'll have to run racing fuel (98+ octane) if you stick with the factory ECU.

If you get brash boy's 13:1 kit, it comes with a new ECU, and will run just fine on premium pump gas.

31:1 sounds high, you sure? thats almost triple it's stock compression. are you sure that no engine reinforcement is needed (i'm thinking reinforcement.

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ECelica Staff
2001 Toyota Celica GTS
ECelica Staff
2001 Toyota Celica GTS
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he means 13:1.

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2004 Toyota Celica
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2004 Toyota Celica
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do what im doing, get the TRD 13:1 piston kit

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SHO - NUFF
2003 Toyota Celica GT
SHO - NUFF
2003 Toyota Celica GT
Joined: Jan 2004
Posts: 2,371
I have an '03 GT and I swapped my pistons out and went with weisco 11:1 pistons, and crower rods. I went with higher compression because I knew I didn't want to go with any sort of forced induction. angry...Remember that if you go with a higher compression ratio (13:1) that you can't run any kind of boost in the future. Having your engine built costs a pretty penny, and if you ever get the itch to run boost, you won't be able to run it safely without spending a ton of money (again) to have lower compression pistons put in...so just be sure

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Senior Member
1995 Toyota Celica ST
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1995 Toyota Celica ST
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Originally Posted by AZZKIKR
I have an '03 GT and I swapped my pistons out and went with weisco 11:1 pistons, and crower rods. I went with higher compression because I knew I didn't want to go with any sort of forced induction. angry...Remember that if you go with a higher compression ratio (13:1) that you can't run any kind of boost in the future. Having your engine built costs a pretty penny, and if you ever get the itch to run boost, you won't be able to run it safely without spending a ton of money (again) to have lower compression pistons put in...so just be sure

thats a very good point
plus you can get more power from lower comp. pistons and higher boost

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