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  1. perrytheplatypus157

    Whats the limit of a wet shortblock?

    Just curious, who here has a high horsepower fully wet block? and what do you make (hp and dyno type) or trap? Looking for personal experiences please. And for those who have half fills and street drive their vehicles, how do you like it? Do you notice any overly excessive heat anywhere? I've...
  2. perrytheplatypus157

    Moving up from Kelford 272s to gsc S3?

    I’m going to update this post for anyone in the future that sees this. I moved to the S3s. At the same boost, I made 30 more horsepower at the same boost level. I lost 100 rpm in spool up. T3 is definitely a restriction at this point, but it’s more the precision 3” outlet on the t3 than the...
  3. perrytheplatypus157

    1g drops 2/3 spark after startup

    I did exactlythat. I have depinning tools around and reshaped the pins accordingly. For some reason, the 2/3 coil and the 4/1 coil both had ugly looking pins. It’s Pin 54 and 55 if I recall correctly. With the pins reformed, I started the car and maneuvered the ecu back into the radio area. I...
  4. perrytheplatypus157

    1g drops 2/3 spark after startup

    For those interested and future reference, I found this issue to be the actual c-60 connector on the ecu. I can wiggle the pins and the car runs, but as soon as I wiggle the connector, it loses continuity. I tried another ecu to verify that the issue isn’t a messed up ecu prong, and nothing...
  5. perrytheplatypus157

    1g drops 2/3 spark after startup

    Appreciate the quick responses. I have a buddy with a spare ecu that I will try tonight. I’ll will get back with an answer either way. The more I think about it, the more it makes sense but who knows. I’ll find out soon enough
  6. perrytheplatypus157

    1g drops 2/3 spark after startup

    Looking for some advice. Took my car for a drive after sitting since the shootout. Car warmed up in my driveway. It’s been warmed up once before without issues. After being warmed up, I drove it. After about 2 miles of 35-40 mph driving, my car dropped cylinders 2/3. They came back in for about...
  7. perrytheplatypus157

    Boost/power limit on Non-oring head/block

    Alright, so it wouldn’t be a bad idea to measure spring pressure, and shim them to 110 lbs if possible. This would allow me 50 psi of boost while still maintaining 1.7x the seat pressure. Other than that though, would it seem unreasonable to see 50 lbs on a non ring setup? I can’t imagine I...
  8. perrytheplatypus157

    Boost/power limit on Non-oring head/block

    Anybody here personally running more than 45 psi on a 64mm+ turbo without O rings in the head/block? I'm currently at 44-46 psi depending on ambient temps on a 6466, but I'm a little afraid of upping the boost for fear of lifting the head. I'd like to see what kind of power I can make and I feel...
  9. perrytheplatypus157

    ECMlink Speed Density lean during spool

    Yes, I meant lower global (not sure how you look at it since it is a negative number). I’ll adjust my TB to see if I can notice anything. It’s an s90. I had the same setup with a 4 bar and everything was smooth but once I installed the 5 bar, I had spiking. If you check out “the big book of...
  10. perrytheplatypus157

    ECMlink Speed Density lean during spool

    I had to enable airflow smoothing because the resolution of the 5 bar map sensor is poor. My 4 bar didn’t need smoothing at all which was nice. Is there a downside to using the tps adjust function? Also, why may some lock the temp and Baro?
  11. perrytheplatypus157

    ECMlink Speed Density lean during spool

    Yes. I will add fuel there as well as add a percent or two to the global to bring the VE numbers down a touch. I usually like to stay around the 99-100% mark topped out. It’s a 6466 and S3s on E85. I understand it is quite lean for a hot spool up, but I watch my temperatures in the process and...
  12. perrytheplatypus157

    ECMlink Speed Density lean during spool

    You sneaky dog. Kevin was just helping me out. I posted on Facebook for a little advice because I got nothing on here and I figured I would report back to my original post on here so it would be recorded
  13. perrytheplatypus157

    ECMlink Speed Density lean during spool

    I didn’t richer it because I thought there may have been an issue somewhere that I wasn’t seeing. I didn’t think my peak VE was supposed to happen before I hit full boost. That’s why I was so confused. SDVEadjust doesn’t quite reach that far. It breaks into open loop at that time. I know I can...
  14. perrytheplatypus157

    ECMlink Speed Density lean during spool

    “It looks to me like it just needs more VE there. It should peak somewhere, and that's likely the spot. :) Right now it's very flat. Add VE to captured values and you can see a 2d slice of the VE table that's used on a pull.” This was a response I got from Kevin Jewer for anyone who wants to...
  15. perrytheplatypus157

    ECMlink When does your VE peak?

    So for the longest time, I thought volumetric efficiency was supposed to peak at peak torque. I also didn’t think peak torque occurred until full boost has been reached. On my logs, my peak VE seems to happen during spoolup (between 4.5-5.2k rpm) and peak torque isn’t until 5600 or so. Just...
  16. perrytheplatypus157

    ECMlink Breaking up under boost?

    Sounds good. You'll get quicker after pulling the transmission a few times, but it can be a pain! Post up when you're ready to revisit this!
  17. perrytheplatypus157

    ECMlink Breaking up under boost?

    Oh my, sorry to hear. I have a few laying around if you don't want to buy new. But you don't necessarily have to pull more timing out. Too much retard is just as bad as not enough. You can over boost more easily and create a ton more heat in the exhaust which can cause cracking. If you just make...
  18. perrytheplatypus157

    ECMlink Breaking up under boost?

    https://www.amazon.com/Fuelab-71501-0-120-Pressure-Gauge/dp/B00378V6ZU If you have an 1/8" NPT bung on your fpr like most have, this works great and is a nice little tool. Tuning around it is definitely possible, but so is the fact that you're just plain running out of fuel. Between the 12.8...
  19. perrytheplatypus157

    ECMlink Breaking up under boost?

    Yes. It can definitely cause the issue. Whether it's a bad regulator or boost source feeding the regulator. If you have access, take a compressor and apply pressure to the regulator, and verify that it rises 1:1. If you can add 25 psi and the gauge reads the correct pressure accordingly(probably...
  20. perrytheplatypus157

    ECMlink Breaking up under boost?

    The issues he's running into dont have a misfire type of breakup. If you can see the log's, they have more of a fuel cut type stutter.
  21. perrytheplatypus157

    ECMlink Speed Density lean during spool

    I'm trying to dial in my AFR before I start turning things up but it seems that there's a lean spot during spool up. I'm not sure how to approach this without creating a map that jumps around. Any ideas would be greatly appreciated!
  22. perrytheplatypus157

    ECMlink The Big Book of Random Tuning tips

    Where do I even start? https://www.dsmtuners.com/threads/basic-dsmlink-tuning-guide.262460/ Also would like to add this tuning guide. When I first started tuning, I printed out the document in this thread and always left it in my car. It runs you through set by step setting parameters and...
  23. perrytheplatypus157

    ECMlink first idle tuning the 2g

    I'm not sure if you have yet, but there's very little information given in the log. Have you updated the ecu firmware recently? I'm not seeing a direct access tab. From what I'm seeing though, there's a bit of work to be done on getting the AFRest and your wideband to line up. It also seems that...
  24. perrytheplatypus157

    Setting Base timing with large cams

    I was wondering how those of you with large cams like kelford 280's and up set your base timing? I run S3s and I have found it a difficult to get my car to idle low since base timing is supposed to be set around 750 rpm with the timing pin grounded. I usually get it down about 850 or so. I HAVE...
  25. perrytheplatypus157

    1G Allen plugs on head - rtv or thread lock

    I called my machine shop and they recommended a thread sealant with ptfe or just ptfe tape itself. I used both options on visible allens just to see if it would work since I too had some work done somewhat recently. So far, neither of them have started leaking. Heres the stuff I used...
  26. perrytheplatypus157

    Switching wideband from front o2 to downpipe

    There should be a white wire right next to the spot where the wideband is currently in the ecu. That's your rear O2. Pin 75. http://www.dsmlink.com/images/forums/2GECUPinout.pdf If you're not looking to use the front O2 sensor, it may be beneficial to swap the pins in the ecu plug so you don't...
  27. perrytheplatypus157

    Moving up from Kelford 272s to gsc S3?

    I'm currently tossing around the idea of swapping for S3's in my 6466 build, and wondering what everyone else thinks of this idea. This is a drag car/weekend warrior, so I'm definitely not dailying it. I see strokers commonly paired with large cams since they have more displacement, but I don't...
  28. perrytheplatypus157

    1G Random stutter causing knock

    The video doesn't show or sound like much is going on. Also ignore the fact that its running rich on WOT. It was just an experiment that didn't change much of anything. The video starts around the 325 second mark in the log. If you look, youll see the rpm in the log spike. It seems to affect...
  29. perrytheplatypus157

    1G Random stutter causing knock

    BLT showed only a little throttle body leakage at 25+psi, I verified mechanical timing myself (5* BTDC), and base fuel pressure is 43 psi. I apologize as far as the maf comp not being inline with actual AFR. I only have a couple of my friend's logs and that night we were changing tons of things...
  30. perrytheplatypus157

    1G Random stutter causing knock

    Yes, they're 1000s at this point. It seems that it needs a lot of dead time to even start and stay running though.
  31. perrytheplatypus157

    1G Random stutter causing knock

    What could be causing a random misfire? It seems that the only time the car starts to knock is once it misfires. We've replaced the plugs(Br7es gapped at .026), wires(stock 7mm), ignition coil, TB, different injectors(450s, 560s, and 1000s) battery(XS deep cycle) and voltage doesn't seem to make...
  32. perrytheplatypus157

    Dynatek ARC2 cuts 2 cylinders when hooked up

    Just an update as to whats going on with my box. I just called Dynatek. I sent my cdi and tach adapter in to them and it got there yesterday. I talked with Scott again and he said my cdi and the tach adapter tested out fine. I told him I know the tach adapter is bad since I swapped mine out with...
  33. perrytheplatypus157

    Dynatek ARC2 cuts 2 cylinders when hooked up

    I got mine from extreme psi. $109 for the harness and $265 for the box. I took mine for a spin without the tach and it worked great. I pushed 29 psi cleanly without breakup with .028 gap. Any more and it would breakup. I didn't test much because I want my tach to work before I go crazy.
  34. perrytheplatypus157

    Dynatek ARC2 cuts 2 cylinders when hooked up

    I will try that. I hope it's enough proof for them if it is on their end. I will call again after I test brads idea. I'll also see if I can source one from a local just to test things out. Thank you for the reference
  35. perrytheplatypus157

    Dynatek ARC2 cuts 2 cylinders when hooked up

    I know this is an old thread and I'm really going out on a limb, but would anyone, specifically GSXftw have any information/rmas/numbers that I could reference to Dynatek so they could see what I'm going through? I have the exact same issue with the 2 cylinders cutting out on startup and I...
  36. perrytheplatypus157

    1G Wiring up Dynatek Arc 2 to 1990 1g

    I guess I'll check out what I've got for resistance and give Dynatek a call next week. Thanks!
  37. perrytheplatypus157

    What do you guys think?

    For what it's worth, in the horsepower preferences it goes something like this: Speed correction - 1.00 First gear - 215 Second - 116 Third - 76 Fourth - 57 Fifth - 46 Drivetrain Loss - 0 for whp or .2 for default vehicle mass - about 3400 stock with driver and half tank of fuel Input smoothing...
  38. perrytheplatypus157

    1G Wiring up Dynatek Arc 2 to 1990 1g

    Do they tend to go bad being brand new?
  39. perrytheplatypus157

    Engine knock help

    Can you post a log of your drive? I don't think its the O2 causing knock. That housing is just a restriction to the exhaust flow but it also helps keep your boost in check by not allowing it to spike or creep on the stock setup. Many things can contribute to knock. First thing I would do if I...
  40. perrytheplatypus157

    1G Wiring up Dynatek Arc 2 to 1990 1g

    Sorry. When I meant I unplugged the tach adapter, I meant that I unplugged it but jumped each wire according to color so it was just bypassed. And I am not using the green tach wire that comes directly off of the CDI itself.
  41. perrytheplatypus157

    1G Wiring up Dynatek Arc 2 to 1990 1g

    Alright. I've been messing around with it today. Everything seems to be wired up in the correct fashion. After trying a bunch of different options as far as different coils, wires, and grounds, I've found that my car runs poorly only if both of the tach interfaces are hooked up. If one is hooked...
  42. perrytheplatypus157

    1G Wiring up Dynatek Arc 2 to 1990 1g

    Alright, I got it wired up. The only thing is now it only fires on cylinders 1 and 4. It throws a 044 ignition circuit malfunction code. I was thinking it wasn't getting spark but cylinders 2 and 3 are definitely getting it. I used a spark tester to see it spark while running. my settings on the...
  43. perrytheplatypus157

    1G Wiring up Dynatek Arc 2 to 1990 1g

    I have the worst part of the wiring done as far as the tach interface side of things. All I have left is the 1990 1g coil pack and the arc2 plug that's wired for the 2g dsm. My question is, which wires from the arc2 2g plug go to which wires of the 1g coil pack? I apologize for the poor pic...
  44. perrytheplatypus157

    Where do I put my GM temp sensor in relation to the nitrous nozzle?

    Thank you! Thats what I was looking for
  45. perrytheplatypus157

    Where do I put my GM temp sensor in relation to the nitrous nozzle?

    Alright, I figured out where to put my nozzle in relation to the iat. Thank you. I guess I may just have to start a new thread because I see I'm kind of asking two questions here. It's not the flow of nitrous I'm concerned about, it's the change in AFR created from the varying fuel pressure...
  46. perrytheplatypus157

    Where do I put my GM temp sensor in relation to the nitrous nozzle?

    When do you spray? The nitrous may be consistent, but the fuel wouldn't be. Correct? If you have 900 psi of nitrous with a XX jet, it gives you X amount of nitrous. If you have 42 psi of fuel with YY jet, it gives you Y amount of fuel. Then your nitrous (X) with your fuel (Y) would give you an...
  47. perrytheplatypus157

    Where do I put my GM temp sensor in relation to the nitrous nozzle?

    When you spray, do you spray into boost? If so, then you wouldn't be able to set a jet and forget it, right? Reason being is that your fuel pressure rises at a 1:1 ratio when under boost but the nitrous pressure is constant. Wouldn't that affect the mixture?
  48. perrytheplatypus157

    Where do I put my GM temp sensor in relation to the nitrous nozzle?

    Appreciate the quick response. Ok, so air would flow in this order: IC, BOV, GM sensor, nozzle, TB. Correct? Also, for what reason should the sensor be after the BOV?
  49. perrytheplatypus157

    Where do I put my GM temp sensor in relation to the nitrous nozzle?

    I've done a lot of reading and it seems as though the best place to put the nitrous nozzle is 6 inches from the throttle body. It's a 50hp wet kit (30 nos nitrous jet and 16 nos fuel jet). I'm redoing my intercooler piping, but I was wondering where I should put the GM iat bung in relation to...
  50. perrytheplatypus157

    Process of installing new valves

    When I went to the shootout, I over revved and bent some valves. It wasn't too terrible as my trap speeds didn't change much, maybe a mile per hour or two. I'm in the process of taking apart the head, but I was wondering: 1: How do I know what valves to use? (size, angles, etc) 2: Are my valve...
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