I'm helping a friend work on a 98 GST and I'm starting to get a little stumped. The relevent mods are 255 pump, S16g, FMIC, AFC, 650s, Greddy Type S. Magnacore Plug Wires, NGK Plugs. Basically what happens is that the turbo spools up fine and pulls but at 4K, the car starts to sputter and buck...

I found this FAQ thread: http://dsmtuners.com/forums/showthread.php?t=127313I have done a lot of searching but haven't found any answers. Has anyone been able to measure the weight of a factory windshield and rear window on a 2g? Even if its a 1g, I would appreciate the datapoint as I...

Does anyone know if the Tial BOV is supposed to have a gasket or O ring that sits in between the BOV and the supplied flange? I recently got my car back from a successful trip on the dyno but we did run into a problem with boost dropping off. We ended up tightening up the actuator rod on the...

http://www.ecuplus.com/index.htmSorry if this has been posted but I searched and did not find anything. Lets discuss:D

http://www.powerhouseracing.com/mapecu.shtmlHas anyone heard of this yet or using it. Sort of a VPC ripoff but maybe interesting.

I was pretty set on ordering a 50 gallon drum of VP C16 for this next year's racing season. I was doing some checking around and have heard of some reputable guys and shops running Torco 118 NOS fuel and wondered if anyone here had experience with it in comparison to the tried and true C16.

I have a question about how wheel trims are derived. Is there some sort of math formula that represents how these numbers are determined. One thing that is confusing particularly is the new GT stuff. The GT "56 trim" wheel is bigger than the standard 60 trim and 60-1. I think this confuses...

I had a friend come over today so I could do a boost leek test on his 2g. He's having some major spool up problems with his 14B'd 2g. I drove the car and it spools up very slow, the blinky reads dead lean and the EGTS shoot up to 1600 by 3000RPM. He has a number of significant boost leeks...

Forgive the newbie question but I'm trying to learn. My question is about the fuel source on a direct port setup. Do you simply need to split your fuel line after the filter and have the secondary line going to the fuel jet while the other one still goes to the fuel rail?

I just finished installing a built 6 bolt and built head with 272 cams into the car. Everything is running(idling) fine motor wise but I've been having some clutch(drivetrain)problems so the car hasn't really been in motion to break things in. Its only been around the block a few times...

I just completed a six bolt swap and fired my car up for the first time. So far I can't get the car to idle. It will stay running but I have to keep the throttle up to about 2000RPMs or it will die.I have spark in all 4 cylinders and fuel in all 4. I'm backtracking everything I can think...

I'm in the middle of doing a 6 bolt swap and have a question about the oil cooler. I picked up a different filter housing that points the filter towards the front instead of sideways to make a little more room. It eliminates the oil cooler however and I was wondering how many people are doing...

I'm in the process of doing a 6 bolt swap and have a question about the 1g CAS. I know its possible to install the CAS 180 degrees backwards into the intake cam. My question is: what physical marks on the CAS dictate which way it goes? As far as I can see, the assembly that fits into the...

I've been reading up on some horror stories of exploding flywheels. My question is: how important do people think a scattershield is once you get around the 400 HP level? I was at 395 this year but should be significantly higher next year and I've currently got my motor and tranny out of the...

If this should be in suspension tech then please move it but its more of a drag racing question. I want to get small wheels. I've been told that most 15" will clear stock 2g GSX brakes no problem. I've been told that the outer diamter of a stock 2g tire is 25". IF I run say a 225-55 15 tire...

I have been all over the AEM website trying to find out a simple answer to a question. I am planning on running the EMS system as soon as I get my 6 bolt swap done but need to buy a laptop. I don't need anything fancy(for anything else) beyond what is required to run the system. I'm trying to...

I understand the wire splicing for the CAS swap and have all the info from the Magnus and RRE site but here's my question. I'm using a CAS from a 92 (green lid). My wires on the connector left to right are white, black, red, black. The 2 to the right I assume are the power wires because they...

I know it will depends on the specific wheel but my question is: Does a 15x8 wheel fit on a 2g GSX without clearance issues. I would probably be looking at SSR Comps. This is would also be assuming that I'm ditching my Baer brakes and going back to the stock setup. I'm looking to drop as much...

Can someone tell me if I'm looking at a 2100 or 2600 pressure plate. The only writing on it is an SFI stamp and the number B009407. The depth of the fingers measure approximately 3/16".

I've searched but come up empty. I'm looking for direction on what is the best way I should have my adjustable shocks set at the drap strip. I'm 2g AWD. I have been running about 25 PSI in my fronts and 27 in my rear but I don't know if thats a great enough difference. I'm also not sure if I...

I decided to start a new thread on this to ask my specific question. I made a 4AN hose to take off the return line on my Aeromotive to drain the gas at the track but it took a long time. Someone posted since I have AN lines, I could just take it off the end of the fuel rail before the...

I have been having timing problems during spoolup. At this point, I think I may be at my VPC's brain power as far as being able to fool my ECU on airflow signal. I'm looking for a way to retard my ignition timing during to spoolup to improve lag. Is it true that I can do this with a DIS-2...

My mods are accurate in my profile. I went to the dyno yesterday and got my topend of my setup tuned successfully at 22 PSI. I have reletively slow spoolup though and have some questions about how to make it faster. Here's what I think I understand, correct me if I'm wrong. If I had a...

I was reading the recent thread about Dre's new pump gas numbers and something jumped out at me that I didn't know. He said that he is only running 10 degrees timing advance at 27 PSI. I guess I did not realize maybe that the more boost you run, the less timing you should have? Could anyone...

I assume its not a good idea to store C16 in plastic containers. I just bought 5 gallons but got rained out. Will it keep OK for a week in a plastic container or should I go buy a metal one?

Well I'm pretty happy today. I made some significant tuning progress with my 660s/VPC/GCC last night at the track. OK the bad news is that I need to stop being a wimp and learn to launch my car harder with the new turbo. Both my runs had 2.1 60' times. I never had trouble getting 1.7s with...

On the 2g pocklogger on the 02 parameter, there is a % number after the voltage. I've never heard of anyone talking about this and wondered what this number represents.

I feel stupid asking this but couldn't find it. Do 2gs have a 4 bolt rear like the 92+ 1gs or is it only the 92-94 models?

Does anybody know why the early 90 TB (2 ports instead of 4) do not work when doing a 1g cylinder head swap on to a 2g. According to RRE's tech page this is what they say but there is no explaination why. I ask because I can get the whole head, TB, mani ETC cheep but it is this vintage.

My mods are listed. The exception is that I have switched back from 660s to 550s. I'm having trouble making the 660s work with my VPC but thats another question down the road. I am humoring my respected tuner and putting the 550s back in to see if I can get enough fuel out of them. Here's my...

I was hoping some people who have welded their center diffs could give me some feedback on overall drivability after they've done the mod. I'm going to invest in some dyno time so I think this is the route I'm going to go. I understand the other options(VCE eliminator, spool) but I'd like...

OK. I have an HKS EVC-EZ. I've had it since pretty much day 1 on my car. I used to have a 16g and ran pretty good times with it. (12.9 on pump gas). Now I recently upgraded to an APG 50 trim t3/t4. Since putting on the turbo, I've had problems. Basically, at the track, I've had a bad...

Does anyone know what type of flange the Tial BOV uses. I've currently got a leeky 1g BOV and might upgrade to this if I don't have to change my UICP. If its not the same does anyone know Tial or someone else makes an adapter to work with a 1g flange?

I was hoping that KPT4321 or one of the other knowledgable tuners could explain something to me. My mods are listed in my profile and I have a good handle on how to tune my VPC/GCC at WOT. My question is about the STFT and LTFT that I see on my OBDII pocketlogger. I understand that these...

I did a boost leek test yesterday and the top of my Aeromotive FPR leeks air around the adjustment screw. There is just a flat washer with a 9/16 nut on top of it. Is there supposed to be any kind of rubber O ring that is supposed to seal underneath the flat washer? Its not a huge leek but I...

Heres the question. I've got a pretty good handle now on what the timing curve should look like and how to factor in EGTs and everything else to dial in fuel up top but here's what I'm maybe having trouble with. Last night, I got out to the track with my new 50 trim and 660s. The problem I...

I just installed my 50 trim T3/T4 last week and last night I swapped in Denso 660s into my 2g in place of the RC550s. I have a VPC/GCC with the 550 chip.(Buschur says their 660 chip won't work in a 2g). I have had the base FP set at 43 without vaccuum. Basically, I couldn't keep the car...

Well I received my AGP kit today. So far everything with the install has gone great. My main hurdle so far was the denting of the water pipe and there is a banjo style water line bolt underneath the water pipe that I had to remove to get the compressor housing to fit. The bolt is for the...

I've currently got my exhaust manifold off and have had 2 loose studs for a while now. What are my options for fixing them. I was guessing that Loctite red or JB Weld won't work. Is a helicoil my only option?

Here's the question. If I weigh my Moda R6 18x8 wheel with the tire inflated to 30 PSI I get 50 pounds. How much of the weight would you guess is wheel? (EX:30 pounds wheel/20 pounds tire). I'm asking because, I'm going to probably invest in new light 18" wheels but I need a comparisson...

I did a test on my 2g last night. I got 178, 170, 186, 180. I know the target is 178. When they say no more than 14 PSI difference does that mean + or - from 178 or the difference between the highest and lowest cylinder in which I would be out of spec slightly? (170-186 16PSI difference)

I have been spending the last week trying to find out why my car wasn't as fast at the track last week as I thought it would be. I know I have some tuning and better driving to do but I thought my traps would be higher. My mods are in my profile but basicly its a 2g, 16g, FMIC, VPC/GCC and all...

I was hoping someone could give me an explaination for this. When I changed from RC550 injectors to the FIC 650cc ball disk injectors, I did not have to change the settings on my VPC/GCC at all to compensate for the "bigger" injector when trying to maintain the same A/F ratio of .92. No other...

When you hook up a MBC you have 2 lines: one for the wastegate and one to a vacuum sources usually grabbed off the BOV. When you hook up a EBC (at least my HKS EVC-EZ) you have 3 lines. 1 for the wastegate, 1 for a vacuum source(BOV), and 1 that is supposed to be at a pressurized source...

Hey guys. I'm new to the forum and have a tuning question. My mods are listed in my sig except that I just installed a set of 650 ball disk injectors. I did some 3rd gear pulls at 19psi on 94 pump gas and heres what I got. I've tuned for .92 o2s and have a steady timing advance starting at 7...