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Discussion Starter · #1 ·
I would like to know what all I can do to beef up my stock 1.8. I would like to run somewhere in the low 13's if thats possible w/ a little work to the stock engine. I dont really wanna put a turbo on right now cause thats a little more than I wanna spend. But I am kinda think of running nitrous I've herd that it kills your motor so I dont kno about it.... What do you guys think? :?
 

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yeah!

wish i had the money to buy the 1.8 monster off you!
 

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Discussion Starter · #6 ·
I would like a turbo soooo bad but I play hockey during the school year so I can only really make money during summer and most jobs wont flex around my hockey hours....And when Im a junior or senior I kinda want to look into a VR-4 but if i got a turbo and got my scort going pretty fast I would prolly keep it.
 

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no, i did all the painting myself. i bought some high temp paint from dupont. it cost a GRIP! then i sand, primer, sand, primer, sand, primer, sand, paint, paint. took me a long time to do it all right, there are no run marks or anything.
 

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yep!

if i had the money i would get it in a heart beat! i dont want to even ask for a pymewnt way! i just have to many bills to get it!
house i am living nand buying is first!
 

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the car is being parted out, PM me for part and price. the engine is being sold as a whole unit for $2500 plus shipping. i put over $5000 into building the engine and everything on it is brand new. it comes ready to run, just drop it in and hook it up. there are a few things the engine doesn't come with, i know for sure the header, because that was sold. i can't recall anything else right now.
 

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Hixie,
To run that fast you talking major work. In fact if you were to try to run that fast without a turbo you would need close to 10k in motor work, fully programmable engine management with huge volumes of N2O.

(remember N2O nearly doubles its volume during combustion...scary thought on high amounts of it)


If you really want to go that fast....go turbo. Cheapest way available. But you'll still end up sinking about 1500 into engine management and another 500 into the fuel system to support it.


But remember...unlike a honda, the Mazda BPD8 will actually take the power :lol:
 

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To tell you the truth, I think the power is good... I think that one of the last things I would do to my EGT is an engine upgrade.. the 1.8L is great at turning over the chunky round rubber things.

However, the handling of the GT isn't as great as I would like. I was racing a friend a few minutes ago.. a little "getaway on campus" thing, and he had a 98 ZX2, and I could keep up in the straights and quick turns, but there was a section that we went on that was like a 400 yard turn, that really tested out the suspension of the car, and I kept understeering and had to slow down, which sucked...

anyway, I thought that the fun in driving the car was going through the turns. Anyway, I know that doesn't answer your question at all, but it's just something to keep in mind.
 

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Discussion Starter · #15 ·
I need to rebuild my motor b 4 i get a turbo but i hope if I can get a job so I can slap a turbo on my motor. Can u run unlimited amount of psi or is it regulated to like 7-10? :D
 

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you're going to need a boost controller. so it'll be controlled. stock the 1.8 can hold up to 14 psi, but after a rebuild you could go as high as 25 psi, maybe more depending on how good the internals are. a BOV, boost controller, waste gate and a few other things will be helpful in not destroying your engine after boostin it.
 

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The concept of forced induction isn't "how much boost can I push."

Remember, an internal combustion engine is nothing more then an air pump. More air in....more air out...more power produced. Carol Shelby once said, "There's no replacement for displacement." Even arguing the concept of forced induction holds true. Small motor + pressure equals an artificially larger motor. Hence, "MYI 48U" as seen on a lisence plate here in AZ. But...his concept is still true because a big motor with FI will then yield larger numbers still.

Think of it this way: You have a big board with a hold in it. If power is produced by how much air you can get through the hole, by compressing the air you then can push more air through the hole. But psi isn't everything. As you up the pressure to get more air through the hole you do alot of extraneous work. Sometimes its easier to just make the hole bigger.

Its true the BPD is known for holding high numbers of pressure. But the whole is not a test of the components. Boost simply raises your compression ratio by cramming more air into the cylinders. Remember the BPD is a 9.0:1 motor in the EGT, Protege, and 323GT. 9.5:1 in the Miata...but the 323GTX its 8.8:1 This static compression ratio plays a big part in how much pressure you run.

To say "yeah I want to run 25psi" and mean it in terms of running it on the street (on a 9:1) motor is just asking for a AAA tow truck to follow you around.

1BAR (14.7psi) actually raises the compression ratio of our BPs to 14.7:1 (boosted compression ratio) That's INSANE to try to run on an OBDI system on pump gas! I'm not at all saying its impossible. In fact some high quality 93octane, 2500ft over sea level elevation, tons-o-timing retard you might hold that. (dont forget SERIOUS intercooling).

Running closer to 10-12psi on the street with some timing retard and premium gas is a more realistic idea.


If you really want to untap power that isn't handed over for free....the key is in the head, but the head can only provide what the bottom end supports. If you plan on a FI setup, untap power by extremely high Volumetric Efficiencies. Major porting, high quality polishing, longer valve duration with higher lift (high spring coefficients too). Caming the motor (...for FI more total exhaust lift.) Ball bearing turbo's, extremely efficient exhaust flow, and doing something to ditch the VAF that ruins an idle with a turbo. Not to mention extreme top end build will provide a race-ready set up.

FI + head work if tuned right could produce a 13 second escort. If you want more you'll have to go to the bottom end. Stroke on the crank for HP and Bore on the block for torque.....once again, more displacement.

like having intake to enhance power with an exhaust, building a bottom end then mating it to a crazy top end will work hand in hand making the whole greater then the sum of the parts.

When you try to grasp forced induction as a concept you can understand how actually low pressure's can produce more power with less side effects. However, paying attention to drag sport compacts you can see lower the compression to run up to about 2BAR is usually the aim. Power beyond that reaches beyond the physics and becomes the chemistry of combustion.....Oxidizing the fuel with N2O.

That....is another lesson completely.
 

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Discussion Starter · #19 ·
I use my escort for a daily driver i wouldnt want to run 25psi like u said i would only run like 7-10 on the street but idk. Thank you guys for all of ur info I'll keep you posted as project escort comes along after schools over were prolly gonna pull the motor :D then we will see what I hav to spend.
 
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