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New Personal Best with 1837


GSTwithPSI
A hole
820/1000
1837/2000



Galant VR-4 org Post #: 1215069 posted 08/22/15 01:23 PM     Remind Me!  Send Private Message   Edit Post      
I got a chance to take 1837 back to the track last night. It was a packed house, which meant I only got 2 runs in. I was staged for my 3rd run, and somebody broke at about the 1/8 and they closed the track for the night. But, even with only 2 passes, I was able to run a new personal best of 13.5 @ 102, so I can't really complain.

The car was running on 93 pump at about 20psi, dropping off to 19psi at redline. Timing was set fairly conservative, peaking at 17-18*.

I definitely need some more seat time with the new clutch. I'm trying to find the sweet spot with the launch RPM, and I don't feel like I got enough passes to truly find it. I can definitely say this clutch is wayyy better than the old one. I cut my best 60' to date the very first pass. I probably would have had an even better launch if the fuckin' staging official didn't make me drive through the water box. I also need more boost. I'm running ECMlink boost control, and even with the solenoid duty cycle set at 100%, I can only get 19psi at redline. So, I need to screw with it and figure out how to get more boost up top.

My real issue is my transmission. It's just getting worn out, and shifting at high RPM is becoming a chore. So, the next step will be acquiring a decent transmission.

Overall, it was a great night. I got to meet sonyslave from T00ners and check out the bad ass twin scroll S362 setup he's running on his 1G. I ended the night with pancakes at Ihop with one of my other buddies. On the way home, we went through a sobriety checkpoint, where I met probably the only Maryland State cop that knows what a Galant VR-4 is. We chatted briefly about the car before he waived me through





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faqinshiet
Member +


Galant VR-4 org Post #: 1215070 posted 08/22/15 01:55 PM     Remind Me!  Send Private Message   Edit Post      
Great job! If I end up in Va next year I'll have to meet up with you for one of these!



90 GGSX-VR4 clone

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Olson
Pwnd by Rance.
338/2000


Galant VR-4 org Post #: 1215078 posted 08/22/15 05:26 PM     Remind Me!  Send Private Message   Edit Post      
cute time.



338/2000
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turbowop
Hard Snarker
1051/2000



Galant VR-4 org Post #: 1215094 posted 08/22/15 08:50 PM     Remind Me!  Send Private Message   Edit Post      
Michael (sonyslave) was a PNW guy until he moved out there. Cool that you met him. Small world.



-Mark

A face only a grocery shopper could love.
1051

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GSTwithPSI
A hole
820/1000
1837/2000



Galant VR-4 org Post #: 1215105 posted 08/22/15 10:43 PM     Remind Me!  Send Private Message   Edit Post      
Yeah, Michael said he knew a lot of the guys from English. Said he raced with them back in the day. He's a cool dude, and his Eclipse is pretty nasty.



820/1000
1837/2000
1546/2000-SOLD
1813/2000-SOLD


Edited by GSTwithPSI (08/22/15 10:47 PM)

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vr4hotness
New Daddy
436/2000


Galant VR-4 org Post #: 1215117 posted 08/23/15 09:32 AM     Remind Me!  Send Private Message   Edit Post      
Nice what mods?



852/2000 (sold

436/1000 rust free



(Beer is living proof that god loves us and wants us to be happy)- Benjamin Franklin

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GSTwithPSI
A hole
820/1000
1837/2000



Galant VR-4 org Post #: 1215126 posted 08/23/15 11:43 AM     Remind Me!  Send Private Message   Edit Post      
Thanks. You can check my showcase for an up-to-date mod list.



820/1000
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1546/2000-SOLD
1813/2000-SOLD

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prove_it
my racist jokes aren't actually funny
715/1000
1284/2000


Galant VR-4 org Post #: 1215158 posted 08/24/15 08:26 AM     Remind Me!  Send Private Message   Edit Post      
You could run low 12's on a 14b if you were in Hawaii....

LOL


By the way your boost tapering off at high rpm could be the wastegate cracking open and not holding. I had that with my internal S16, no matter what I did I couldn't go above 20psi at above 6500. Even with the wastegate disconnected.



#1284/2K NB, Totaled
#715/1K KG, Rebuilding
02 Acura TL daily duty unit

12yr+ Vr4 owner.
Honda/Acura master tech.
Family Guy


Edited by prove_it (08/24/15 08:28 AM)

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CutlassJim
poop load of room
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1788/2000
935/1000
912/1000


Galant VR-4 org Post #: 1215160 posted 08/24/15 09:01 AM     Remind Me!  Send Private Message   Edit Post      
Shim that wastegate and run 25 psi like a boss.



ALL DSM's are advanced and ALL Evo's retarded
I love my crazy mother!!!

Posts: 1518 | From: Manchester, NH | Member Since: 07/17/06 | IP: (74.94.142.161) | Report this post to a Moderator

prove_it
my racist jokes aren't actually funny
715/1000
1284/2000


Galant VR-4 org Post #: 1215165 posted 08/24/15 09:24 AM     Remind Me!  Send Private Message   Edit Post      
Problem with shimming the WG is that it leads to wear on the arm bushing and increases the chances of cracking the turbine housing. It works, but Justin over on tooners found a way to use a holset actuator on the stock MHI turbos. Gives you a 18psi spring can be had for cheap.

Justins high boost solution.



#1284/2K NB, Totaled
#715/1K KG, Rebuilding
02 Acura TL daily duty unit

12yr+ Vr4 owner.
Honda/Acura master tech.
Family Guy

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transparentdsm
I have to say something dumb Member
138/2000


Galant VR-4 org Post #: 1215173 posted 08/24/15 09:55 AM     Remind Me!  Send Private Message   Edit Post      
seems simple enough, i like the idea.



138/2000 - BG - Dorothy

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CutlassJim
poop load of room
1799/2000
1788/2000
935/1000
912/1000


Galant VR-4 org Post #: 1215185 posted 08/24/15 10:53 AM     Remind Me!  Send Private Message   Edit Post      
Quoting prove_it:

Problem with shimming the WG is that it leads to wear on the arm bushing and increases the chances of cracking the turbine housing. It works, but Justin over on tooners found a way to use a holset actuator on the stock MHI turbos. Gives you a 18psi spring can be had for cheap.

Justins high boost solution.




The "issues" that you listed, of which I would love to see some proof of, would still exist with a Holset actuator.



ALL DSM's are advanced and ALL Evo's retarded
I love my crazy mother!!!


Edited by CutlassJim (08/24/15 10:56 AM)

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iceman69510
Turn Right Racing
855/2000
828/1000


Galant VR-4 org Post #: 1215188 posted 08/24/15 10:56 AM     Remind Me!  Send Private Message   Edit Post      
Quoting CutlassJim:

Shim that wastegate and run 25 psi like a boss.




Not familiar with this. Where do you shim?



91 VR4 855 Nile Black
92 VR4 828 Belize Green-Daily driver status
91 VR4 115 Nile Black -SOLD

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CutlassJim
poop load of room
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Galant VR-4 org Post #: 1215189 posted 08/24/15 11:05 AM     Remind Me!  Send Private Message   Edit Post      
You shim it under where the wastegate mounts to the compressor housing. This raises the seat and opening pressure of the wastegate by shortening the spring inside the wastegate and raising the force required to move it via Hooke's law F=-kX. It's the same as the old school mod of threading the wastegate arm and shortening the arm.

With no boost controller and 1/8" of shims (two washers) I usually see 17-18 psi on an Evo 3 16G base pressure and use a Hallman to control a steady 25 psi. This is with the larger flapper door.

I've been doing this for about 15 years on everything from Grand Nationals, MKIII Supras, 240's and DSM's and never had an issue.



ALL DSM's are advanced and ALL Evo's retarded
I love my crazy mother!!!

Posts: 1518 | From: Manchester, NH | Member Since: 07/17/06 | IP: (74.94.142.161) | Report this post to a Moderator

prove_it
my racist jokes aren't actually funny
715/1000
1284/2000


Galant VR-4 org Post #: 1215190 posted 08/24/15 11:48 AM     Remind Me!  Send Private Message   Edit Post      
Good to hear. I've never personally seen the wear I describe, but have learned it through a couple reputable turbo builders. In the past I too have threaded the rod and shortend it.

Nice thing about the holset is that they will hold back 30psi. The stock MHI will have a limit as the spring is still weak. Also it will have more throw than the shimmed/shorter MHI actuator(not a big deal as your trying to hold it closed).



#1284/2K NB, Totaled
#715/1K KG, Rebuilding
02 Acura TL daily duty unit

12yr+ Vr4 owner.
Honda/Acura master tech.
Family Guy

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iceman69510
Turn Right Racing
855/2000
828/1000


Galant VR-4 org Post #: 1215192 posted 08/24/15 12:13 PM     Remind Me!  Send Private Message   Edit Post      
Thank you both. I understand.



91 VR4 855 Nile Black
92 VR4 828 Belize Green-Daily driver status
91 VR4 115 Nile Black -SOLD

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CutlassJim
poop load of room
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Galant VR-4 org Post #: 1215194 posted 08/24/15 01:08 PM     Remind Me!  Send Private Message   Edit Post      
Quoting prove_it:

Good to hear. I've never personally seen the wear I describe, but have learned it through a couple reputable turbo builders. In the past I too have threaded the rod and shortend it.

Nice thing about the holset is that they will hold back 30psi. The stock MHI will have a limit as the spring is still weak. Also it will have more throw than the shimmed/shorter MHI actuator(not a big deal as your trying to hold it closed).




I can see the bushing wear but have NO idea how this could affect the hole cracking any more. My point was that if it happened with a shimmed stock actuator it's still going to happen with a Holset or whatever regulator as force on the flapper arm is force on the flapper arm no matter how it's created.

I'm not in the elite or an E85 user so I'm not looking for more than 26ish psi out of an internally gated turbo anyway but a I could see a stronger spring being needed after that.



ALL DSM's are advanced and ALL Evo's retarded
I love my crazy mother!!!


Edited by CutlassJim (08/24/15 01:10 PM)

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G
obsessed with the turds of others
486/1000


Galant VR-4 org Post #: 1215199 posted 08/24/15 02:25 PM     Remind Me!  Send Private Message   Edit Post      
Interesting. I run a e3b16g @ a steady 24psi with out a shim. No spikes, no tapering off etc..........I wonder what would happen if I shimmed it. I could just turn the boost up.



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prove_it
my racist jokes aren't actually funny
715/1000
1284/2000


Galant VR-4 org Post #: 1215201 posted 08/24/15 02:34 PM     Remind Me!  Send Private Message   Edit Post      
Cams, exhaust, intake all can effect that.



#1284/2K NB, Totaled
#715/1K KG, Rebuilding
02 Acura TL daily duty unit

12yr+ Vr4 owner.
Honda/Acura master tech.
Family Guy

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CutlassJim
poop load of room
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1788/2000
935/1000
912/1000


Galant VR-4 org Post #: 1215203 posted 08/24/15 03:17 PM     Remind Me!  Send Private Message   Edit Post      
Also the larger flapper door gives more surface area for the turbine pressure to push on and they blow open easier than a stock flapper.



ALL DSM's are advanced and ALL Evo's retarded
I love my crazy mother!!!

Posts: 1518 | From: Manchester, NH | Member Since: 07/17/06 | IP: (74.94.142.161) | Report this post to a Moderator

GSTwithPSI
A hole
820/1000
1837/2000



Galant VR-4 org Post #: 1215216 posted 08/24/15 06:15 PM     Remind Me!  Send Private Message   Edit Post      
Quoting prove_it:

Problem with shimming the WG is that it leads to wear on the arm bushing and increases the chances of cracking the turbine housing. It works, but Justin over on tooners found a way to use a holset actuator on the stock MHI turbos. Gives you a 18psi spring can be had for cheap.

Justins high boost solution.




Yeah, this was actually going to be my next stop. Seems like people have had good luck with the modified Holset actuators.

I guess I could try shimming the actuator. No harm in trying the cheaper easier option first.



820/1000
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1546/2000-SOLD
1813/2000-SOLD

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EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1215219 posted 08/24/15 06:30 PM     Remind Me!  Send Private Message   Edit Post      
Great numbers! Mind sharing your link setup? I'd love to see your timing map and a WoT pull.



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
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GSTwithPSI
A hole
820/1000
1837/2000



Galant VR-4 org Post #: 1215229 posted 08/24/15 08:29 PM     Remind Me!  Send Private Message   Edit Post      
Sure, It'd be easiest if I could just email it to you since I can't upload it here. Shoot me a PM.



820/1000
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1813/2000-SOLD

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GSTwithPSI
A hole
820/1000
1837/2000



Galant VR-4 org Post #: 1215306 posted 08/25/15 05:44 PM     Remind Me!  Send Private Message   Edit Post      
Ok, nvmd. I got a bunch of messages asking for the tune, so I'll just post it here. I dialed in the new injectors about an hour before I drove to the track. As a result, my laptop was dead by the time I got to the track, and I don't have any actual pulls from that night. Here is a 3rd gear pull from earlier that day. The only changes I've really made since this log is rounding out the timing map a bit better. Everything else is pretty much the same.

click

For anyone who my try to use this (or parts of this) in their own car, here are my recommendations:

-Tweak the timing map for max power: I have the map set at 17* from about 4500 to redline. Depending on your turbo, you'll probably want to pull some timing early to help with spool, and add some up top near redline to make a bit of extra power (which is what my current map looks like). If you just need a consistent timing value to dial in your MAF/injectors, this will probably work for you as-is. I will post my updated timing map next time I grab a log.

-Tweak the MAF: I still need to pull some fuel as shown in this log. I'm fine with running a bit on the rich side, but I'm still a few points off from having the MAF dialed in perfect. I had to make a lot of changes from the 560s to the 1050s, which took a little work.

-Adjust the BCS duty cycle: Obviously, if you're running ECMtuning boost control, you'll want to dial the duty cycle back. I'm at 100% DC throughout nearly the entire RPM range.


I also dropped my launch limit to 4500. Not sure if this helped or hurt me, as I didn't get enough passes in to really get the feel for the new clutch.

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89Patches
I <3 AMS


Galant VR-4 org Post #: 1215325 posted 08/25/15 10:48 PM     Remind Me!  Send Private Message   Edit Post   
Bruh my old VR4 ran 13.7 @102 with just an exhaust, JDM intercooler and boost set to 17psi, otherwise it was stock. You need to be going faster!

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