Previous Thread
Next Thread
New Reply
Print Thread
Rate Thread

#5477 Sep 19, 3:11pm
Joined: Sep 2002
Posts: 7
New Member
New Member
Joined: Sep 2002
Posts: 7
ok i was wondering, cause i have read a lot of posts on here and i have come to some type of thoery, but i don't know it will work, i know a decent bit about cars, but i may not know this.
Ok here goes, i have heard that if you put forced induction on a gts in the last posts that it would cause your engine to wear down quite a bit cause the gts has lots of compression, but if i'm not mistaking wouldn't buying alternative pistons, with a lower compression ratio be the cure for this, i mean i don't know i am not a rocket scientist or anything, i was just curious.
ohh , and i am new here, this is my first post? and if someone has already asked this question i'm sorry i must have missed it. confused


I will own one in the future, wating for the 2003 this october-november!

Joined: Sep 2002
Posts: 7
New Member
New Member
Joined: Sep 2002
Posts: 7
ok maybe i didn't word this right, but hopefully you know what i mean, ohh well, i guess what i am really tryin to say is when i get the gts and put a turbo kit on it, how badly would i wear the engine out? this is for a 2003 celica, (that one day when a turbo is made for it)or whatever, i don't know


I will own one in the future, wating for the 2003 this october-november!

Anonymous
Unregistered
Anonymous
Unregistered
Hey, Yes you do officialy qualify for a rocket scientist with that theory, but ill break down the problems with it and the idea of a turbo.

--first off it is completely possible to turbo the gts. it has been done by XS engineering. currently it is a shop installed kit only by them.
you are absoluetly right about the compression issue but there are no aftermarket pictons available to lower it, however there are alternative solutions installing a thicker and stronger headgaskets will lower the compression to a more turbo friendly level. currently the XS kit runs 7.5 pounds of boost. this low boost is completly possible in a high comression engine as long as you have a good boost contorller and wastegate to tune the boost to a reliable 7.5 (boost spike are bad)
what XS did is incorperated the laregest 3 core intercooler i have ever seen into the front this keeps intake air temp down thus denser air is easier and safer to fit into a high compression engine.
-other problems not thought of when people talk about turbos is that you will not pass emissions it eliminates the cat because your old header is now an exhaust manifold to feed the turbo and a down pipe that connects to the celica's already tiny mid pipe. (the GTS cat is virtully part of the header)
you have to tap your oil lines as well to run oil to the turbo to keep it cool. along with this comes adding a oil cooler to keep the temp down as it leaves the turbo and an oil catch can to keep the flow positive. after you have done these mods a turbo will work but work badly in the celica. SOOO now you have to buy a fuel management computer (Apexi S-afc) for increased fuel dilvary to keep up with the added air your are sending to the engine. to do this you need a new intank fuel pump and a rising rate boost sensitve preasure regulator... but wait theres more because almost all fuel regulators work on a fuel return line and the celica doesnt have a fuel rturn line. you now need to get a new highflow fule rail and then tap the end and run a return line back to the loop. along with the rail you might just need some higher pulsed injectors so more fule can be injetced into the pistons.
-- now that you got all the fuel and air into your engine and have it all matched (tuning required) you need to upgrade your ignition start with denso irridium spark plugs and except NO substitute as these are the best for any toyota (read your manuel for details). With the new spark plugs you have to make sure spark is consistant or the engine will not knock and ping so you need to add a new coilless ignition (HKS twin power) also except no substitutes.
---- OOOO K no that we have that covered you have 1 last mod to do and that is Cam timing gears so you can advance or retard your timing. because you have a turbo and more air and more fuel and more spark are happening faster you have to advance the timing so the camms will open the valves at the right times for optimal flow of intake and exhaust gasses. (the better the engine breathes the faster your car will be) i assume at this point that you have an exhaust but now is the time to check that it is 3inches all the way through because you DONT want back preasure getting to the turbo. oh by the way you will also need a clutch cable to handle that puch power and LSD to keep the power on the ground and from ripping the front of the car off.
- all in all the venture will cost you a total of about 10g's with EVERYTHING turbo and piping shit will cost you about 5G's.
soo now you know and now you can hate me for taking your and my dream of a turbo celica and just stomping the hell out of it because i know 10 g's for a fast car that already costed 25g's and i could just got my self a trans am... but wheres the fun in a f'n american car.

hope you learned some thing today
Mark

#5480 Sep 29, 12:13am
Anonymous
Unregistered
Anonymous
Unregistered
rofl laff!

#5481 Sep 29, 12:41am
Joined: Sep 2002
Posts: 7
New Member
New Member
Joined: Sep 2002
Posts: 7
thanks for the info Mark, and yes i did learn somthing, but i know what ya sayin, if you're gonna do it, do it right!!


I will own one in the future, wating for the 2003 this october-november!

Joined: May 2002
Posts: 3,286
ECelica Staff
2001 Toyota Celica GTS
ECelica Staff
2001 Toyota Celica GTS
Joined: May 2002
Posts: 3,286
If you have the money, a celica, and ambition, go for it.

If you don't, I would spend the money on a WRX and build it till it can't be built anymore.

smile

Anonymous
Unregistered
Anonymous
Unregistered
monkeywrench are selling pistons and you can choose what ever compression you want. if i was going to turbo, i'd go with a 9 or 9.5:1 ratio. i believe that's what the supras are at. the pistons they sell are forged pistons so they can handle any turbo. they also sell billet connecting rods and that would also be a plus to buy when doing FI.

#5484 Oct 2, 9:22am
Anonymous
Unregistered
Anonymous
Unregistered
David Draper from West Covina Toyota posted the following on NewCelica. I think this is what you are looking for:

"Figure that if you would want to match compression to boost, so if you wanted to run:

15 psi = 8.5:1,
12 psi = 9.0:1
8 psi = 10.0:1
5 psi = 11.5:1"

#5485 Oct 2, 11:31am
Anonymous
Unregistered
Anonymous
Unregistered
Quote
Originally posted by TRDeez Nutz:
David Draper from West Covina Toyota posted the following on NewCelica. I think this is what you are looking for:

"Figure that if you would want to match compression to boost, so if you wanted to run:

15 psi = 8.5:1,
12 psi = 9.0:1
8 psi = 10.0:1
5 psi = 11.5:1"
I am GT compression and I am running 7.1 psi, and there are guys out there running 14psi on GT engine. A shop ran 18psi on race fuel on a GT. GTS is going to be difficult, not sure but XS Engineering blew their engine for some reason. Just becareful

#5486 Oct 2, 2:31pm
Anonymous
Unregistered
Anonymous
Unregistered
Sorry...forgot to say I was referring to a GTS.

#5487 Oct 2, 2:56pm
Joined: May 2002
Posts: 3,286
ECelica Staff
2001 Toyota Celica GTS
ECelica Staff
2001 Toyota Celica GTS
Joined: May 2002
Posts: 3,286
Quote
Originally posted by Mike Lu:
[QUOTE]Originally posted by TRDeez Nutz:
[qb]GTS is going to be difficult, not sure but XS Engineering blew their engine for some reason. Just becareful
The car is here in Riverside, actually down the street from here. I talked to the guys about that car, he said:

"We had the car on a jack and lowered it, somehow the turbo piping was damaged when the car was lowered off the jack. The damage caused a hole in the turbo piping which was not noticable until we blew the engine at Palmdale in the middle of running the 1/4 mile... on that first and only run we got 16.xx sec."

Join the conversation - Register Now or Log In to add your comment


Link Copied to Clipboard
Member Spotlight
Street Prototype
Street Prototype
2002 Toyota Celica GT
Guam, U.S.A.

Posts: 2,154
Joined: January 2003
Thank you.: Props to EverythingCelica.com for having the most informative facts for Celica Enthusiasts and having the best features that you can never find on any other Celica websites.
Show All Member Profiles 
Recent Topics
Spyder Headlight LEDs
by Dxnxld - Mar 25, 2024 6:51am
Anyone ever hear this noise?
by CeliacCelica - Mar 21, 2024 10:51am
Clunking sound (not sure where from)
by Juliansky - Mar 20, 2024 3:01am
Does anybody know where i can find a S53 trans rebuild kit?
by MoreRamenNoodles - Mar 19, 2024 8:57pm
Urgent
by SoloXKay - Mar 19, 2024 11:58am
OEM speedometer on aftermarket ecu
by Penaman99 - Mar 5, 2024 11:23am
Brake master cylinder
by Nigel100 - Mar 5, 2024 2:45am
newly purchased 2000 GTS
by CantShift - Feb 27, 2024 9:06pm
Customize Your Toyota Celica Privacy Policy · About · Contact
Privacy Policy · About · Contact
CelicaHobby.com is an independent Toyota Celica enthusiast website. CelicaHobby.com is not sponsored by or affiliated with Toyota Motor Sales, USA, Inc. in any way. The Toyota and Celica names and logos are trademarks owned by Toyota Motor Sales, USA, Inc.
© CelicaHobby.com, 2001-2024
Powered by UBB.threads™ PHP Forum Software 8.0.0
(Preview build 20230331)