Well, I've done my research several times, but still have some doubts about a basic turbo setup, I need your advice guys.

GOAL: Just close to 190 WHP - not more than 6psi

Could it be done with the stock injectors (Beta 1, MAP based engine, open loop ECU)?

Let's just say that I made my mind attepnting this on stock internals and CR. That would be a real PITA and risk, mostly, not worth it.

My plan would be:
- Turbo Manifold (a good one, to make turbo spool early in rpm range)
- Turbo Compressor (I'm thinking Garrett T25 to get spool on low rpm range, I'm not after high boost)
- Downpipe
- Chargepipe
- 8,5:1 Tigerlily Cast Turbo Pistons (I would choose them over an FMIC - cost is similar)
- 61mm Big Bore Throttle Body
*I already have AirRam intake manifold*

Also:
- Would I necesarily need fuel pump (like Mitsu GSX? and/or RRFPR?) I have read several posts that you can increase fuel flow increasing pressure on a certain injector, but would I need to with the goal I'm after?
- I have installed the 1.8 Beta intake cam, should I return to the stock 2.0 to help cylinder charge?

Thanks

 

I dont know about all the boost specific stuff, but as far as your cam is concerned, stay with the 1.8L. It has longer duration and more lift than the 2.0L intake cam. Which equals more air inside the cylinder between valve opening and closing events.

 

I'm pretty sure you will be safe, just get an FMU and a new pump wouldnt hurt smile.gif also get a FMIC, you dont need new pistons with such low hp, but intercooler would definitely help!

 

Tibwrcsbj; I know the 1.8 Cam has more lift, it's the duration part I was thinking about. As air pressure is possitive outside the cyl. in theory, you don't need the admission valve to open sooner, nor to stay open open later (so exhaust gases help fill the cylinder). However, I don't know if with the 2 OEM cams, the more lift of the 1.8 compensates the -6 degrees of the 2.0 ... anyone???

Odessitpashka:
Precisly I don't want a FMU, because my ECU configuration is so rare, that I don't know if I will be able to find diagrams, plus, there's only one dyno here... I was wondering if with just a bigger pump would be enough fuel to cope with the extra air... and regarding the pistons, I prefer to invest $350 on pistons (the labor cost for replacing pistons would be no higher than 250 for me; friend of the dealer wink.gif ) and play on the safe side, than to buy a $400+ intercooler, slim fans, and other cooling equipmenyt and still live on the edge.

Thanks for your posts, any comments are welcome

 

I'd suggest gettin adjustable FMU and a wideband so you know your a/f ratios, your ECU will not give you enough fuel unless you forse it to with SAFC or will raise the fuel pressure by FMU. Just a pump will not do the trick...

Our pistons should be good for under 250whp and you are far away from that point, so I'd suggest gettin FMIC instead. It will make life of your engine and your turbo longer, as well as it will increase efficiency of your turbo!

 

All of you above have great ideas but remember his goal is only 190whp and that can be reached safely without all that extra crap. Basically he just needs what I listed below.
However I disagree with Odessitpashka on the FMIC because thats just more air volume the turbo has to compensate for. A SMIC will be a much more efficient and cheaper idea.


190whp can be attained easily and cheaply with boost.

id recommend a DSM setup.
14b turbo ($100)
1G SMIC ($40)
1G Intercoolerpiping with BOV ($40)
You can modify a DSM manifold or get a custom one made. speed-factor can hook you up with that.
a downpipe
95-99 GS-T fuel pump
FMU
S-AFC

You'll have to modify the intake for a recirculating BOV and have it recirculate the air AFTER the MAF. You can do it for less than $800 easy

 

Okay Dweet I just found my winter project. PM sent.

 

well, you are right about smic, but if i had money i would have went with fmic. I personally have a smic smile.gif

 

yeah but a 1G DSM sidemount can support up to 300whp. its just a waste of money to go any larger. I dont think a beta will break 300 whp unless you do ALOT of other mods as well. but you know what they are so im not going to tell you what you already know smile.gif

 

well, DSM smic will never be as effective as some other fmic's. It might hold 300hp like you said, but drop of pressure will be higher than some other intercooler, also the temperature will be different between FMIC and SMIC.

And the list of the things that you made is pretty good, but missing couple things, like plugs, oil lines, etc