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Engine struggle at 5k & up??? - 6G Celicas Forums

Topic #77142 8 posts Started by str8thugginit4ya
What's up guys?

I asked Culp about this already and he advised me that it is probably the spark plugs, wires, etc. But I thought I'd ask around, even though he is a veteran at Celica problems. I have a 94 GT with a swapped 3rd gen 3SGTE, FMIC, Greddy Boost Controller, HKS BOV, and 3 inch piping with a Apexi exhaust. Not sure if all this is relevant, just thought I'd let you guys know my setup in case any of these things has to do with the problem. I usually don't drive my car hard, but the other day I tried to red line it and when I reached about 5k, the engine started to struggle to get higher. When I punched it, it pulled HARD. But when I reached 5k it wasn't pulling so hard again. Any suggestions on what may be causing this? I didn't check to see if the boost was still hitting hard, but I doubt this is a turbo problem. Thanks in advanced for any help!



-Ryan
how much boost are you running?

prolly worn ignition components as stevenson suggested.

Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered
>
QUOTE (presure2 @ Dec 17, 2010 - 8:52 AM) *
>how much boost are you running?

prolly worn ignition components as stevenson suggested.



I'm currently running 10lbs. Axel04 told me that stock boost for a 3S is 13lbs, can anyone confirm this? I guess changing the ignition components is what I'll be doing this weekend then.



-Ryan
>
QUOTE (str8thugginit4ya @ Dec 18, 2010 - 9:54 AM) *
>>
QUOTE (presure2 @ Dec 17, 2010 - 8:52 AM) *
>how much boost are you running?

prolly worn ignition components as stevenson suggested.



I'm currently running 10lbs. Axel04 told me that stock boost for a 3S is 13lbs, can anyone confirm this? I guess changing the ignition components is what I'll be doing this weekend then.



-Ryan



Yes 13 is stock. You can even safely set it to 15psi and drive around like that all day long without any problems.

15PSI - 30MPG - Megasquirt Tuned
>
QUOTE (lagos @ Dec 18, 2010 - 11:31 AM) *
>>
QUOTE (str8thugginit4ya @ Dec 18, 2010 - 9:54 AM) *
>>
QUOTE (presure2 @ Dec 17, 2010 - 8:52 AM) *
>how much boost are you running?

prolly worn ignition components as stevenson suggested.



I'm currently running 10lbs. Axel04 told me that stock boost for a 3S is 13lbs, can anyone confirm this? I guess changing the ignition components is what I'll be doing this weekend then.



-Ryan



Yes 13 is stock. You can even safely set it to 15psi and drive around like that all day long without any problems.



Thanks Lagos. This may be a dumb question but if you have the boost set lower, would it save on the gas mileage? I would think so, but just to know for sure.


-Ryan
depends on how you drive. If you floor it everywhere then yes because your car will be making less power and using less gas.

15PSI - 30MPG - Megasquirt Tuned
as long as you drive responsably you will get good MPG out of this engine, I mean considering the power it has and such.

on a regular week I get pretty close to 30 MPG driving to work ( 90 miles round trip ) I'm currently running 17 psi, I can get as low as 18 MPG when enjoying the car on weekends. so it's all on your driving.
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QUOTE (Culpable04 @ Dec 19, 2010 - 11:43 AM) *
>as long as you drive responsably you will get good MPG out of this engine, I mean considering the power it has and such.

on a regular week I get pretty close to 30 MPG driving to work ( 90 miles round trip ) I'm currently running 17 psi, I can get as low as 18 MPG when enjoying the car on weekends. so it's all on your driving.



Sounds good! Thanks Culp. Yea, I don't really punch it too much. If I do, it's on the rarest of occasions. Thanks for all the info guys!




-Ryan