This is how I resolved the two issues listed above. Worked for my car but I'm not sure if it will work for yours or not. Im simply explaining what i did and not telling you to do the same.Basically my setup is 6 bolt block with 7 bolt head, E85, HTA68 turbo with supporting fuel upgrades.1...

In that case no your old tune wont work. SD is extremely sensitive to any change in airflow. This is what I would do if you can figure out what's going on. Get a MAF and put it on, load the evomod1 or stock 2g fuel and tuning maps, your ECU is already configured for E85 and your injector size so...

Like the guy above stated you have a few things to fix. Honestly man SD is already a pain even when it works right and the fact that you messed with so many "airflow related" items makes it even harder. If its feasible, save your current tune to your desktop and convert back to MAF and its last...

I don't think anyone mentioned how much of a pain it is to get SD dialed in. Its a long and tedious process if you want it to work right. Knowing what I know now, I am not going back to SD unless I plan to wire in ethanol sensor to the ECU and let it automatically control fuel delivery. I had a...

Hey man how did your tune turn out

Dude I looked at your log and you don't have a manifold pressure source identified in pin assignments, you have it selected at the bottom telling the ecu where to look but you need to also select it up top. Where is say MDP------factory/ click on factory and in the drop down menu select your...

B&M oil cooler installed. Pretty damn easy overall.

just connect ecmlink and make a quick 3 sec log with the car off and post it so I can see your settings. Myself or someone may be able to better assist you then

usmcjay updated usmcjay's GSTView updates to this DSM profile...

Since your sensor is installed in the mdp location, where it say mdp up top, omni 4 bar should be selected there..save pin assignment..below that you will see an area that says manifold pressure I beleive, that should say mdp telling the ecu to look at the mdp location for manifold pressure...

Make sure under pin assignments you select where the omni 4 bar sensor is installed and right below that you tell ecmlink where to look for input from that sensor..

Im out in DeLand. Im not tuner but I know a little here and there. If you do find a tuner her let me know man. My good friend is a bad ass tuner but he is 4 hours south

Make sure the power transistor connector is on properly. My car died during a pull because of this.

Bump. Ordered a coolant temp sensor also.

This started when I put my 7 bolt head back on the 6 bolt block. Car is a 99gst. Black top cas. Im on speed density and as you can see the car idles fine if i don't touch the gas. When the touch the gas pedal it goes rich and then super lean. It died a few times doing this. The car also drives...

I can't view your log but I'm 100% sure it's the tps delta...it's under throttle tip in in the da area. I already increased each value by 15 in some areas but tps delta still spikes on my log in some places. I'll be increasing it more today for better results.

I went back to the stock 2g maps and modified the fuel map so the leanest ratio is 11.0. The car is making good smooth power compared to the evo maps with no knock at 15 pounds.

1). Any boost, vac, or exhaust leaks? Boost leak tested 5psi above your max boost with no leaks? yes2). Verified mechanical timing? yes3). Verified base timing? yes4). Ignition system COP or Stock Coil: stock Wire brand and Age: NGK 6 months Spark Plug brand, type and Gap: NGK bpr7es .28...

Well eventually your oil pump will stop working and there goes the entire engine along with parts you could salvage. Trust me I know.

Once all that is good, open a stream and the right click at the bottom where the values are then click displayed values..from there find your mdp sensor in the list on the left and select it

Under misc tan find pin assignments..where it says Baro change that to omni 4 bar, where it says intake temp change that to ait I believe mine says then click save pin assinments..once you save it right below that you have to tell the ecu again where to look for a mdp signal by selecting Baro...

This was a simple fix for me. My crank position sensor was going bad. Changed it out and no more code.

I had a similar problem. Don't know what caused it but I know I how I fixed it. Go to misc tab I think and make sure the pin assignments are correct. Once that's done, right below that u need to make sure u tell the ecu where to look for the mdp source whether it be the stock location or Baro...

Since you are still on the t25 there is really no need for a safc unless you have bigger injectors..I would say double check the gap on your plugs and make sure u have the 6es ones.

Long story short I ended up doing a 6 bolt swap and currently tuning it on dsmlink. I'm still learning but it seems pretty easy once all the mechanical stuff is in line. I feel like I had a lot more power with my stock ecu and 450cc..I will be switching over to the evo8 mod1 maps sp hopefully...

Yea its coming along slowly but surely..I'm not sure what he is running, the car is out in Jamaica but I do know he has 420 to the wheels on a k20.

usmcjay updated usmcjay's GSTView updates to this DSM profile...

My fully built engine just spun a bearing on the dyno recently..I'm sending it to strictly performance and what we talk about doing is them doing the machine work and resusing most if not all the performance parts I already have. It's going to cost me little over 2k only because I need a new crank.

Im planning on doing this swap as soon as my 7 bolt piss me off too much. Was it a pain to do? I read all the wright ups it seems pretty simple. Im looking for a cheap 6 bolt long block for the time being. Moving to Daytona in 2 months so it should be easy to find one around there.

usmcjay updated usmcjay's GSTView updates to this DSM profile...

Its not fully tuned as yet but on 15 pounds 1st and 2nd are useless on street tires if you get on it.

Nope the stock fans fit perfectly and the J pipe I'm using is from VRSF. I ended up having to cut off about a quarter inch off the studs on the radiator where the smaller fan is bolted. The blades were barely touching the j pipe at times. Ill upload a vid of his car later on today.

Lesson learned!! Im picking up a extra engine and practice taking it apart and putting it back together.

usmcjay updated usmcjay's GSTView updates to this DSM profile...

Another major issue developed on the dyno. It appears that the car was running too rich for too long when they switched to speed density causing gas or exhaust gasses to mix with the oil somehow. This resulted in rod knock because when I checked the oil it flowed like water on my hand and smell...

Like the others stated your best bet is to get a good used engine and drop it in. Rebuilding the engine is going to cost you in parts and labor.

I bought a stock GST for little over a grand and modified the hell out of it. All I can tell you is this, it all comes down to how deep your pockets are. I originally planned to spend only 5 grand on a rebuilt but I'm over 9 grand deep now. Getting a modified vehicle is not a bad deal if...

I had a few set backs after putting my engine back together. The gates racing timing belt starting ripping after only 100 miles so i replaced it with an OEM belt. I was getting code P0400 random misfire so I replaced the crank position sensor while changing the timing belt and solved my issue...

usmcjay updated usmcjay's GSTView updates to this DSM profile...

Just like the first guy suggested, southbend has pretty good setups. I emailed tim my plans for the car along with my power setup and he recommended a pressure plate and disc. That simple!

I am not. I'm using the stock maf and ecuflash. I have been looking into speed density but I'm not too savy on that as yet. My tuner is pretty familiar with flashing the 98/99 ecu so I'm hoping to learn a few things from him. You are using link?

That's awesome man. I have a GST now but I would love a GSX platform to put some serious power down. Holsets are good turbos, cheap and reliable. The guy who was supposed to build my car reccomended a holset but I did the build myself and stuck with the 68hta. Just need to get it dyno tuned now.

Sounds like this could be the start of a drag racing powerhouse. If I had a gsx shell and a short block laying around I would build that sucker for the track. Man you are giving me ideas now. My current build is done. Forged internals with the 68hta. Would be nice to build another strictly for...

As high as the car was the muffler tip was still touching the ground when I got it on. Its been a while since I cursed that much getting this thing on. Oh and one more thing if you look at the bottom of the trunk you will see a widened area mine looked triangular shaped. That's precisely where...

I feel your pain man. I install my megan racing 3inch cat back last week. The muffler took me 30 mins of messing with it for it to go over. I loosend the 4 bolts holding that metal bar that goes all the way across and let it swing down. Don't know if this will help but when I got the exhaust...

You are doing the same build I just did except I went with ecu flash instead of link. My build journal should be linked to my profile, I have every part listed per saved receipts and prices if you want to check it out. I would attach it here but I don't know how to from my phone. Off the rip I...

I picked up mine from auto zone last year I believe. I have it mounted on the passenger side pillar area but after reading the above post I may move it closer to me so I can easily reach it while still strapped in.

I read somewhere on here before that if your shifter cable bushings are not in correctly or missing it can cause shifting issues. One more thing to double check.

Just picked up a 2 inch couper and t clamps on ebay for 5 bucks. Guess I'll have to give it some love to get in on. Lol

I have the fp 4an inline filter. I order to place it where fp reccomend Its right after the 90 degree connector on the ofh then the oil feed line connects to it.