well my mr2 i just got has a 5sfe engine. In the past posts i read the 5sfe is taking a big beating with the turbo. I am on a really tight budget. bills and all that bullshit. I was wondering if i could rebuild my 5fse, stregthen the internals and put turbo it with about 15 lbs of boost. Is that ok?
cause 3s-gte swaps are really expensive and if i can do that to my 5fse and have it push 300 after the boost then why the fuck not? lol
And if i can do that where would b a good place in NY to get my motor re built?
a 3sgte swap would be alot cheaper . Everything is already there.think about all you would need to modify the 5sfe to to a turbo set up. Exhaust manifold w/ turbo flange, turbo, downpipe,Intercooler, piping,fan for intercooler, oil system for turbo with some type of cooler , boost gauge of some type, vacuum lines. and then you will need additional fuel ,mods and management, possibly injectors.and the stock head on the 5sfe is an "economy type". and then if you want to have more robust internals... lots of money. I see rear clips all the time for $1,500 to $3,500..
There's nothing wrong w/ the 5S-FE. Invest your money into headwork and headers if you're on a tight budget. You'll get at least 15hp outta the headers, 10hp for a port and polish, 10-30hp for cams depending on the grind, and some for oversized valves. That's good for about 150rwhp. If you want more than that, go for something else ... like a V6 or a 3S-GTE. Very streetable, and a noticable improvement over stock.
On Ebay there are some salvage companies and individuals both that sell rear clips. Some of the salvage companies even offer limited warrantys. I was on Ebay last night and saw at least 6 clips on there.
I was wondering if i could rebuild my 5fse, stregthen the internals and put turbo it with about 15 lbs of boost. Is that ok?
Rebuilding your motor will cost as much as a 3S-GTE engine. If you wanna keep the 5S bottom end and use the 3S head, you'll need custom pistons. You can't run over 5-7psi of boost w/o an intercooler on a stock 5S. Fully built, it can take as much as 30psi with the right equipment. Though 7psi will get you around 180-207hp and similar torque. Turboing the 5S is too expensive, IMO.
The highest number I've seen for a turbo 5S was Mike Colon's 5S-FTE at around 500rwhp or more, and ran a 10 sec quarter mile. $$$.
"There's nothing wrong w/ the 5S-FE. Invest your money into headwork and headers if you're on a tight budget. You'll get at least 15hp outta the headers, 10hp for a port and polish, 10-30hp for cams depending on the grind, and some for oversized valves. That's good for about 150rwhp. If you want more than that, go for something else ... like a V6 or a 3S-GTE. Very streetable, and a noticable improvement over stock."
You can't just add horsepower increases like that. It doesn't work that way. Adding a potential 30hp via camshaft change and a potential 15hp via headers doesn't yeild 45hp. Certain mods compliment others and sometimes two mods can reduce the overall increase when put together. It's like saying that 20% + 30% = 50%. It just doesn't work that way.
For instance, if you purchased a header that's made for that engine, then ported the head, the header no longer matches the flow characteristics of the head for which it was made. You'd need a different header to match the new flow characteristics.
So, in short, if you really want the most efficient and notable increase in power, do the 3sgte swap. You could spend $1500 on the 5sfe engine and and barely make an increase of 50whp. I'd say that for $2k you could do a decent 3sgte swap and then you'd see a major increase in performance, with much room for improvement later.
here's my situation.... I am so close to saying screw the 5sfte project... but I already have most of what I need:
spare 5sfe , new garret t3, turbo manifold, flange, boost controller, boost guage, BTM (boost timing master), turbo timer, rebuilt 5s head with ferrera valves-springs..., supra injectors (7mge I think), intercooler, oil cooler, SS oil supply\return lines, coolant supply\return lines, 3 layer steel head gasket.... I'm gradually getting everything together for a rainy day... basically what I need now are my wiseco forged pistons... I've priced them for around $999 for a complete bottom end rebuild that comes with pistons, rods, wrist pins, crank shaft, rings, and journals.... but you know making a bloody "grand" apear just doesn't happen overnight... unless your in the mafia... but anyway....
If anyone can suggest other components I should use for my setup.. please let me know.... and I will also be doing the dreaded Auto to Manual swap soon... I'm just asking for a world of trouble aren't I ?
You can't just add horsepower increases like that. It doesn't work that way.
It was for comparative purposes only. In the real world, it all depends on how you tune each individual application to suit your needs. Jim Snodgrass had the best all motor 5S-FE at 147rwhp w/ only one cam grinded. It does take a lot to get hp outta this engine at the upper end, but I guess that's where VVT-i would help a little bit or where VVTL-i would help a lot.
Granted the 15hp gain from headers is from a stock engine.
I don't doubt it at all that you could get some decent power from the 5S, how much is a question for your wallet.
Headwork will go a long ways with these engines, a high velocity head made for economy will respond to cleaning up without hurting your gas mileage if done properly and tuned again afterwards.
Do you have any more info on Jim Snodgrass' engine work?
I always question the advertised hp gains from intakes/exhaust installed on stock vehicles because they don't mention a/f ratios; did the header help to correct a rich condition, and give some power that way?
Every bit helps though, and I too have been thinking about how a low-psi 5S would run in my old Corolla
I have a 91 with a turbo kit on it, just rolled over 1300 miles on the rebuild, haven't really touched the throttle yet though, but so far it's running great. This is what I is included in my car. It's basically the Burien Toyota 5sfe turbo kit which consists of a T3 turbo with manifold, 360cc supra injectors, HKS Racing BOV, oil pan with the weld to drain the oil from the turbo, and a map sensor. Injectors can't support more than 14 psi, I'm only trusting 10-12, though. The bottom end has forged internals, bored out (displacement should be closer to or above the advertised 2.2L instead of the stock 2.164) with ross pistons (8.3:1 compression), and a completely rebuilt head with heavy porting on the exhaust side, mild on the intake, three angle vavle job, only thing stock are the cams. The motor was built to run 21 psi, and the T3 runs out of umph at 19psi. With an intercooler, a supra or walpro high flo fuel pump, a custom fuel rail to hold 550cc injectors, an aftermarket ignition system mated to a stand alone ecu, and tuning, this motor should put out about 300-350 at the rear. the turbo setup was $2500, and the rebuild and install was $4700. Expensive but worth it, I just didn't want to give up the NA's torquey nature. We won the national autox championship last year, I couldn't lose the NA's feel, so I merely made up for it's lacking top end with head work and boost. I really have no noticable turbo lag. Sorry for being wordy, but if money is not an issue, keep your 5sfe. We don't need raised hoods or turbo emblems to go fast.
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