SBstar
15+ Year Contributor
- 3,038
- 125
- Jan 1, 2004
-
Jackson,
Michigan
Perform a basic boost leak test and ensure all leaks are out of the system, fix the crack in the valve cover.
Also please list all your mods in your profile, you say you have an exhaust already, what is it/what size? Anything else aftermarket on the car?
Perhaps I'm confused. I'll be the only one here to say that I don't think you need tuning stuff right away. They're good mods, and definately important down the road, but they aren't needed at this point. A logger is a good idea though so you can keep track of what the car is doing. There is much to be gained by tuning your car, but it is not necessarily the best first option.
So 1st buy a logger.
Now I would assume you have a manual which means you have a 14b turbo in the car currently, the 14b has been ran to the max on stock injectors, so I'm going to dismiss the idea of getting those larger injectors for the time being. Sometime down the road you might want to upgrade, but for now go ahead and stick with the 450cc's in there.
Free mods.
These will gain you a little bit of power and give you something to do with the car, getting you into modding it and working on it.
Hack the 1g maf properly.
Leave the little screw alone, take out the lower honey comb, leave the top square one alone, and remove the lower chamber wall divider, here is a pic with the part you will be grinding out. Grind out the part circled in red only!
Put in new spark plugs and wires. Essential for running properly, you don't need some crazy great spark plug wires but get something better then the stock replacement from autozone. NGK bpr6es should be fine or you can go a step colder to the bpr7es.
Upgrade your fuel pump, the stock system won't flow enough, get a walbro 190, or get a 255lph pump, but I highly recommend an afpr if you go with the 255.
Get a 2g manifold if you don't already have one, port it or buy it ported. Port your turbine housing for your turbo, and port your O2 housing. All worthwhile mods, if you need info on how to do this search or check vfaq.com
Grind out the edge in the stock 1g throttle body elbow. This makes for smoother airflow.
Turn up the boost, watching the logger carefully to ensure you aren't hitting knock. If you're running pump gas you'll probably end up somewhere around 17-19psi provided the rest of the car is sorted well.
You'll notice a good increase in power and you won't have spent much at all. Other free mods include getting rid of the coolant going through your throttle body, getting rid of all emissions crap, and taking a bit of weight out of the car (a/c is pretty popular to get rid of, especially since it rarely works in these old cars anyways).
That's where I would start at least. From there tuning stuff would be within the next few steps.
Also please list all your mods in your profile, you say you have an exhaust already, what is it/what size? Anything else aftermarket on the car?
Perhaps I'm confused. I'll be the only one here to say that I don't think you need tuning stuff right away. They're good mods, and definately important down the road, but they aren't needed at this point. A logger is a good idea though so you can keep track of what the car is doing. There is much to be gained by tuning your car, but it is not necessarily the best first option.
So 1st buy a logger.
Now I would assume you have a manual which means you have a 14b turbo in the car currently, the 14b has been ran to the max on stock injectors, so I'm going to dismiss the idea of getting those larger injectors for the time being. Sometime down the road you might want to upgrade, but for now go ahead and stick with the 450cc's in there.
Free mods.
These will gain you a little bit of power and give you something to do with the car, getting you into modding it and working on it.
Hack the 1g maf properly.
Leave the little screw alone, take out the lower honey comb, leave the top square one alone, and remove the lower chamber wall divider, here is a pic with the part you will be grinding out. Grind out the part circled in red only!
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Put in new spark plugs and wires. Essential for running properly, you don't need some crazy great spark plug wires but get something better then the stock replacement from autozone. NGK bpr6es should be fine or you can go a step colder to the bpr7es.
Upgrade your fuel pump, the stock system won't flow enough, get a walbro 190, or get a 255lph pump, but I highly recommend an afpr if you go with the 255.
Get a 2g manifold if you don't already have one, port it or buy it ported. Port your turbine housing for your turbo, and port your O2 housing. All worthwhile mods, if you need info on how to do this search or check vfaq.com
Grind out the edge in the stock 1g throttle body elbow. This makes for smoother airflow.
Turn up the boost, watching the logger carefully to ensure you aren't hitting knock. If you're running pump gas you'll probably end up somewhere around 17-19psi provided the rest of the car is sorted well.
You'll notice a good increase in power and you won't have spent much at all. Other free mods include getting rid of the coolant going through your throttle body, getting rid of all emissions crap, and taking a bit of weight out of the car (a/c is pretty popular to get rid of, especially since it rarely works in these old cars anyways).
That's where I would start at least. From there tuning stuff would be within the next few steps.
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You can get a used one for $100.