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w/ my magic bag
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Wow, that's something! Wonder the power, HP rating?
 

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low n slow
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sounds like its got some issues. knocking like a diesel at the end. i still may boost my spi got almost all the parts to do it. id say rough estimate if its at like 10 psi it should be around 170 hp and 200 torque the spis can make enough power to haul ass in stock trim+ a turbo kit but as with anything using stock internals on an fi application its all in the tune

the term turbo kit is used loosely there is no "kit" for spis
 

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Yeah it looks nice, but it looks like that engine will not last long [wrenchin] with that tapping sound does not sound good....
 

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Aurelius Pardus
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26,535 Posts
sounds like its got some issues. knocking like a diesel at the end. i still may boost my spi got almost all the parts to do it. id say rough estimate if its at like 10 psi it should be around 170 hp and 200 torque the spis can make enough power to haul ass in stock trim+ a turbo kit but as with anything using stock internals on an fi application its all in the tune

the term turbo kit is used loosely there is no "kit" for spis
wonder what size the turbo is... you may be right assuming it's decently sized. the sohc mazda has 4 extra intake valves and .2 liters on the SPI, and makes around 175hp and 240tq on stock turbo at 10 PSI. Really curious what a T3/T4 would do to it.
 

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sounded like another spi knocking thats sad he put that much money into his car for that low of numbers lol that has "some potential" [thumbd]
 

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low n slow
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2,163 Posts
sounded like another spi knocking thats sad he put that much money into his car for that low of numbers lol that has "some potential" [thumbd]
[nono]. first off a zetec with the same turbo kit as the spi has would have maybe 20 more horsepower and 20 less torque than the spi, just remember horsepower sells cars torque wins races. and that knocking you hear has absolutely nothing to do with it being an spi so go do your homework. if it was a valve seat it would sound nastier than that, the knocking is most likely from a poor tune. and i was being very conservative with my estimate spis can make damn respectable power with the stock motor boosted, if it didnt i wouldnt have even considered building mine. ". also how do you know how much money he has into it? ive got damn near everything ready to bolt on to turbo my spi and geussing from the top of my head im under a grand including a atx to ib5 swap . jeffescortlx made 212hp and 262 torque on a spi and that was on pump gas andwith the 1 7/8 exhaust with the 3 inch turbo back and e85 he was probably closer to 250-260 hp and 300 torque if you ask me in a car that started with 90whp thats a little better than some potential seeing as that was stock internals and cheap engine management.not meaning to sound like a dick but so many people are uneducated and just spout off about the little spi without having any understanding of it. they have one major problem valve seats which can be remedied cheaply then the spi would be just as reliable as a zetec[boxface]
 

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or instead of pulling the head to "fix" it do what most people do and pull the engine and drop in a zetec.... and i would pay decent money to see a streetable spi making 260whp lol. Im not bagging a spi but do the homework and you wont buy one to start with
 

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Aurelius Pardus
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nothing wrong with that at all... not too hard of a number to get but no one has really bothered.

Dont think Ive seen one with a proper tune yet.
 

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low n slow
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^^ project neverender turbo atx spi tuned by tom
 

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Yeah it looks nice, but it looks like that engine will not last long [wrenchin] with that tapping sound does not sound good....
i bet he didnt replace the factory head with a reman'd one that had the valve seat problem fixed. i bet it blew through the sky in no time with that turbo.
 

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Stumble'd upon this while searching for a turbo comparison chart and I couldn't resist....

That focus in the video is Gigy's car off FJ. He still has it and it still runs although he hasn't worked on it in quite some time while he's been renovating his house.

If I remember correctly (haven't looked at the thread for a while since it was moved to the archives) he was running it on 89 and had it running on a stock tune while he was waiting to tune it.

I talked to him about two months ago or so about how it's going and he said he was going to finish it at some point within the next few years when he finishes renovating his house. His car was practically "Genesis" for Turbo-ing an SPI and getting it done right/reliable. [pray]

That video was from 6 or 7 years ago when he had almost completed it IIRC.

Leading up to the point when that video was taken, he had done everything himself(minus the machine shop work); oil cooler & remote mount w/ all braided AN lines, custom fabbed air-water cooler, entire exhaust system(down-pipe, side exit exhaust, etc...), all the charge piping, the custom fabbed intake, custom Poly Motor mounts (driver-side mount AFAIK), MTX-75 swap w/zetec oil-pan, opened up the crank-case ventilation hole (so it's just like the zetec's ventalation hole (behind the exahust manifold) as SPI blocks were made with it filled in), upgraded water pump(not sure on that one), Custom oil-catch can.... the list goes on...

Gigy's Focus is my inspiration to go turbo'd and one of the main reasons I keep rocking an SPI! [thumb]

I think I met him in person at FocusFest 2011 and he had an orange or red SVT with him (talked to a guy who said he had a Turbo SPI in his garage that he hadn't worked on in a long time but I couldn't remember his name/screen name ) but I may be combining two totally different people into the same person.
 

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Stumble'd upon this while searching for a turbo comparison chart and I couldn't resist....

That focus in the video is Gigy's car off FJ. He still has it and it still runs although he hasn't worked on it in quite some time while he's been renovating his house.

If I remember correctly (haven't looked at the thread for a while since it was moved to the archives) he was running it on 89 and had it running on a stock tune while he was waiting to tune it.

I talked to him about two months ago or so about how it's going and he said he was going to finish it at some point within the next few years when he finishes renovating his house. His car was practically "Genesis" for Turbo-ing an SPI and getting it done right/reliable. [pray]
While I was building my turbo spi I looked up a lot of information and his car kept popping up in that information [hihi]

wish I would of been able to complete mine... got so close... [?|]
 
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