 5sfe BOOST, what is a safe boost limit |
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 Nov 8, 2003 - 6:35 PM
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Enthusiast  Joined Sep 30, '02 From san diego Currently Offline Reputation: 0 (0%)  |
I am puting a turbo on my 5sfe and I need to figure out what level of boost will be safe.
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Nov 8, 2003 - 7:08 PM
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 Enthusiast Joined Aug 30, '02 From North Carolina Currently Offline Reputation: 0 (0%) |
i think i remember someone saying you can boost 10psi with an intercooler safely. without an intercooler i would think you wouldn't want to push more than 6psi.
adam -------------------- MISS THE CELI, BUT...
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Nov 8, 2003 - 8:49 PM
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 Enthusiast Joined Oct 27, '02 From Barbados Currently Offline Reputation: 0 (0%) |
Safety depends on engine mileage, fuel quality, temperature, tuning, driving habits, and boost & fuel control.
If you have very high mileage and also look after your car like a baby engine wise, 6-8psi with a small intercooler would work. Advice, if you want to boost, I would recommend getting a compression test, a good tuning and then move on to turbo. Upgrade your Injectors and get a nice fuel and boost controller(s). If money allow, a nice intercooler to cool that charge down will help. you might also have to look at the fuel quality and also an ignition unit to have high revs where you might want to retard the timing a bit. Once these things are taken into consideration, including engine cooling with an extra vent or extra radiator fan from SPAL, all should be right up to 12psi(but not to live there). But to run at high boost, alot of consideration have to be lot @ the engine temperature, once the above it met. Try to keep the engine and the charge air cool as possible since the head or the pistons have not been built for boost. Also, I thing these engines do not carry piston oil coolers. So reduce heat here is critical for long engine life This post has been edited by west_minist: Nov 9, 2003 - 5:40 PM -------------------- West_Minist
Hydra EMS Dealer & Tuner Subaru ECUFlash Tuner http://www.socob.bb http://xtremeracingtuning.com Viciously Tuned, Driven Hard  |
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Nov 9, 2003 - 12:15 PM
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Enthusiast Joined Oct 1, '02 From Minnesota, USA Currently Offline Reputation: 0 (0%) |
Good reply west minist.
-------------------- 95 Toyota Celica GT
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Nov 9, 2003 - 5:42 PM
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Enthusiast Joined Oct 27, '02 From Barbados Currently Offline Reputation: 0 (0%) |
Thanks
Advice, it want to have fun and have another engine onside, break the engine @ the track, pull it down and advice all on what to do if you want to boost @ 12psi cheaply. 
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Nov 9, 2003 - 11:39 PM
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Enthusiast Joined Sep 30, '02 From san diego Currently Offline Reputation: 0 (0%) |
Thanks for the replies,
I have 106,000 miles on my engine and is still in really good shape. I am doing the Ct26 turbo kit for my 5sfe. I bought a Hks Safr and ignition as well as a fuel pressure regulator,Supra N/A injectors, a good boost controller, and a huge Spearco intercooler. I was not sure what boost I can handle with. I thought that if I tuned the engine at 8 PSI I would be alright. |
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Nov 10, 2003 - 12:30 AM
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 Enthusiast Joined Feb 10, '03 From Connecticut Currently Offline Reputation: 11 (100%) |
Wellllllllll someone's made of money!
S-AFC and Boost controller is just about 1000, unless its mechanical controller. Also, too big of an IC is bad, remember you have a 4cyl, not a 6. This post has been edited by Supersprynt: Nov 10, 2003 - 12:31 AM -------------------- |
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Nov 10, 2003 - 7:59 PM
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Enthusiast Joined Oct 27, '02 From Barbados Currently Offline Reputation: 0 (0%) |
Nice. 8psi would be good. Just be wary of some of the complications.
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Nov 13, 2003 - 12:52 AM
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 Enthusiast Joined Oct 20, '02 From Covington, La Currently Offline Reputation: 0 (0%) |
would it be possible to replace the valve spring w/ 3sgte one for higher rev? could I make possibly 220 at wheel w/ 5sfe turbo?
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Nov 13, 2003 - 5:35 PM
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Enthusiast Joined Oct 27, '02 From Barbados Currently Offline Reputation: 0 (0%) |
really do not know. I problem is that if the results are going to be a 3sge, get a 3sge short block or the hold engine and go from there.
-------------------- West_Minist
Hydra EMS Dealer & Tuner Subaru ECUFlash Tuner http://www.socob.bb http://xtremeracingtuning.com Viciously Tuned, Driven Hard |
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Nov 13, 2003 - 9:07 PM
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 Enthusiast Joined Aug 30, '02 From Anaheim, CA Currently Offline Reputation: 0 (0%) |
not a good idea with the stock 5sfe cams. i think they are made to peak the power at just under 6krpm 220 at the wheels is possible, with a great amount of tuning, complete fuel system upgrade and a good fmic the internals should hold, provided you do the tuning right -------------------- 1994 Celica GT4 WRC Edition
@gt4.wrc on Instagram |
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Nov 13, 2003 - 10:20 PM
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Enthusiast Joined Oct 20, '02 From Covington, La Currently Offline Reputation: 0 (0%) |
what about a 294 grind cams? <--to solve prob of stock cams
Would the valve springs frome 3sgte fit into a 5sfe? |
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Nov 14, 2003 - 1:05 AM
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Enthusiast Joined Aug 30, '02 From Anaheim, CA Currently Offline Reputation: 0 (0%) |
well if you are gonna change the cams than it wouldnt hurt to have a 1k higher redline(with the new springs, guides and seals might be good as well) and now that i think of it, i doubt the 3sgte valve springs will work, the heads are way too different but, if you are going the route of the 3sgte manifold and turbo, the ct26 wont do any good after the stock GT redline. btw what is the rev limiter on a GT? -------------------- 1994 Celica GT4 WRC Edition
@gt4.wrc on Instagram |
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