* * 92 GSX Newb Questions

[1GDSMGSX]

Hello I have a 92 gsx that is bone stock, car did come with a lsd in the rear.....is that an option or standard on the gsx?

I have a few parts that I have collected and would like to install on this car, at this point I beleive that I will not be doing any machine work on this motor, the only thing planned is a new head gasket, lifters, springs, guides, seals, and a timing belt, to freshen up the top end.

I guess what I am hoping for is an opinion of the setup that I have,
What numbers I might expect to see with this setup? I have been told that should produce 350-400 wheel horse power.....was that just smoke or is there any truth to that?
Anyone in the Portland Oregon area that has experience tuneing DSMs?

Parts I have:

T3/T04E .57 A/R Turbonetics Turbo
Tial 34mm wastegate on turbonetics exhaust manifold, dumped back into exhaust
Full 3" exhaust from O2 housing back
FMIC
greddy type s bov
Denso 660cc injectors
255 lph pump
adjustable fuel pressure gauge
Zeitronix data loger with bosch wide band O2
APEXI-SAFC-II

Parts I might need?????
The only real thing that I am not sure of is that I think I might need is to convert over to a MAP sensor from the stock MAF, I do not have an EPROM ECU What can I do to get around this? Is there any type of device that converts a map signal so that the stock ecu can read it?

Thanks for all the help guys, hope these questions are not to retarded.WTF

 

[interex]

You can get a MAF Translator.

 

[spoonman]

Stock DSM's use a MAF sensor on the intake to measure the amount of air flow the engine is receiving. You can buy a MAFT (translator) that will allow you to use a GM MAF that can be placed any where on the intake, unlike the OEM MAF which can only be located on the start of the intake system before the turbo. The reason why the GM MAF is desirable is because it flows much better and you do not have to recirculate your BOV. http://www.dsmtuners.com/forums/fre...tions/113858-venting-your-bov-atmosphere.html

Another tuning devise named DSMap uses a MAP sensor which measures the intake pressure not the actual amount of air flow like a MAF sensor. This is what I use, it is very cheap and a great tuning devise. http://www.dsmtuners.com/forums/tun...efore-buying-tuning-tool-take-look-dsmap.html

How much boost are you looking to run?

You should replace the timing belt and the tensioners, make sure you only use OEM parts not cheap knock-offs, if your timing belt snaps your head will be ruined. I suggest that you get a multilayer head gasket not the OEM, although it is good for low boost, and get ARP head studs because the stock head studs can stretch and can only be used once. You can use the stock rods and pistons but I suggest you purchase new rings as they will probably not seal as well as they could considering the age of the car. The stock rods and pistons in your engine can handle up to 400-450 whp with a very good tune.

 

[talon187]

I would stay away from a maft and go vpc and gcc. If you do run the maft you will have hell of a time tunning it. it would be a good idea to run an safc2 along with it. it was alot easier to tune with the combo. The reason i dont like the maft is because the sensor only sees how much air is coming in. it doesnt see temp or density or anything like that. So that means when the weather changed outside so did my tune. it was eaither to lean or to rich. It became really anyoying changing the tune everytime i wanted to go for a ride. I would also say go with the arp headstuds they are cheaper then buying stock replacements. The mitsu 4 layer headgaket is also nice with that you could run 20+psi and be ok. the only other thing i would think about doing if i were is get rid of the balance shafts. I had alittle over 100k on my orignal motor and i was cursing down the high way on my home from school and the car got super loud. When it came part the balance shaft bearing let loose droped into my oil pain and destoryed my crank and a few other things.

 

[LTUDSM]

I would stay away from a maft and go vpc and gcc. If you do run the maft you will have hell of a time tunning it. it would be a good idea to run an safc2 along with it. it was alot easier to tune with the combo. The reason i dont like the maft is because the sensor only sees how much air is coming in. it doesnt see temp or density or anything like that. So that means when the weather changed outside so did my tune. it was eaither to lean or to rich. It became really anyoying changing the tune everytime i wanted to go for a ride

Not with Maft Gen II or Pro versions

 

[snowborder714]

I have a few parts that I have collected and would like to install on this car, at this point I beleive that I will not be doing any machine work on this motor, the only thing planned is a new head gasket, lifters, springs, guides, seals, and a timing belt, to freshen up the top end.

I would hope you'd get all the other things associated with doing a timing belt job and not just the belt itself. Other things include tensioner, pulleys, water pump, etc.

I guess what I am hoping for is an opinion of the setup that I have,
What numbers I might expect to see with this setup? I have been told that should produce 350-400 wheel horse power.....was that just smoke or is there any truth to that?

On this site that is considered bench racing and is a big no-no You can search through the members to see what other people are putting down with the same mods as you plan. The only way you're going to know what a setup is capable of is putting it on the dyno.

Parts I have:

T3/T04E .57 A/R Turbonetics Turbo
Tial 34mm wastegate on turbonetics exhaust manifold, dumped back into exhaust
Full 3" exhaust from O2 housing back
FMIC
greddy type s bov
Denso 660cc injectors
255 lph pump
adjustable fuel pressure gauge
Zeitronix data loger with bosch wide band O2
APEXI-SAFC-II

Parts I might need?????

-Boost gauge
-Hard intake pipe
-Recirculation kit for Greddy bov
-Manual boost controller
-Fuel pump rewire kit
-Better clutch/pressure plate (ACT 2600 possibly) and possibly lightened flywheel

The only real thing that I am not sure of is that I think I might need is to convert over to a MAP sensor from the stock MAF, I do not have an EPROM ECU What can I do to get around this? Is there any type of device that converts a map signal so that the stock ecu can read it?

You are in luck my friend! If you really want a good logging/tuning device, the people over at ECM Tuning (makers of DSMlink, soon to be known as ECM Tuning) have made it possible to turn a non-EPROM 1g (and 1g only) into an EPROM ECU. So if you'd like to run DSMlink, which I would highly recommend, I would wait on the S-AFC (and obviously the bigger injectors) and start saving for V3. Or, you could just buy an EPROM. You will still need to run a MAF/MAS sensor with any setup other than a full standalone (AEM EMS for example). You can log a MAP sensor in DSMlink though, which I find extremely helpful when I'm tuning.

Also, please fill out your profile so that we know what you have done to the car already.

And welcome to the site!

 

[talon187]

You could run a vpc or gcc that converts over to a map sensor and you can vent with it alot better then a maft or you can run what im running a maf pro. its totally diffrent then a maft it also has speed density with a map sensor and air temp sensor. im happy with mine you need a laptop to really tune it tho. also you will need an eprom socketed ecu to get a pefect tune out of it =/

 

[1GDSMGSX]

Thanks for the tips, I will work on my profile this afternoon so that it is current. I have two 1G GSX, one has the AEM EMS and other items, this other I just picked up and it is bone stock, except for the parts I had been gathering that I mentioned before.

-Boost gauge.....DONE part of the zeitronix lcd display
-Hard intake pipe......Done 3" hard pipe
-Recirculation kit for Greddy bov.....would like to make it vent to atmosphere?????
-Manual boost controller......Will need to purchase!!!!!
-Fuel pump rewire kit.............DONE
-Better clutch/pressure plate (ACT 2600 possibly) and possibly lightened flywheel

Zeitronix data logger has EGT, Boost, AFR, Lambda, these are the gauges displayed by this unit.

I already have a 3.5BAR GM MAP sensor, and IAT sensor welded into the intake pipe. So it sounds like I need to hold off on the SAFC-II, and instead look at a DSM Link with an EPROM. I am just trying to keep the cost down on this car since I have the 91 with the AEM.

I will look into the Maft Gen II or Pro version, and the maf pro. Like I said trying to keep costs down on this one. Maybe I will start with converting this ECU to EPROM...sound like the first logical step ?!?!?!?!?

 

[snowborder714]

I'm not sure if/when Tom will start doing the non-EPROM conversion. I'm assuming he's not doing it yet, but my guess is when V3 comes out he will. Shoot him an e-mail and see what he says. Go to the contact page on DSMLink Homepage for the e-mail address.