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greddy twin build...

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Old 08-19-2018, 07:53 AM
  #561  
bealljk
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^thanks again - With the car being up in the air I decided to fix/modify my Y-pipe as it was rubbing on the chassis. I needed 1/4" to clear the rail, so I sliced out about 1/2" out of the Y-pipe and then welded back in. In hind-sight, i probably could have taken 1/4" out and been ok ... I might install a hanger to support the Y-pipe as it's resting on the 'W brace' ...

The marking and cutting was rather easy but my welding sucked. I cleaned the stainless as best I could but the welds were dirty. Go figure, the inside of the pipe was coated with exhaust carbon and the outside has oil residue. I acetone'd and wire-brushed it but it didnt get everything off. I didnt fight it, I got it all welded back together and ground-down the welds (it was that bad). The fitment is much better.

I'll (humbly) upload a few pics ...




Last edited by bealljk; 08-19-2018 at 08:06 AM.
Old 08-19-2018, 09:10 PM
  #562  
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Got the car out for some road-testing on the new BOV. My BOV spring is a 10psi and is too stiff - I ran a go-pro and took 15 to 20 pulls in 5 of 6 gears and the BOV did not crack open. I put back in my greddy RS springs and it definitely wasnt enough. I got impatient and rather than order a 6psi or 8psi spring I just clipped mine and it's not perfect and remains opens about 3mm under idle vac but it'll work until I get the correct spring in.

Other than that the car ran really well ... I pushed 12 psi for a few runs and then added some BCS and got up to 15psi. The oil leak from the valve cover is solved and no more burning oil smell / smoke off the header.

Going for under 2900lbs on Wednesday!!
Old 08-22-2018, 09:34 PM
  #563  
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Got out to the track tonight ... I forgot my wallet at the office but the girly-friend was coming to the track so she grabbed it for me. Other than missing a few passes as the gates opened, it wasnt a big deal. About a 30min rain delay also interupted the night, but again, no biggie.

The car ran better tonight as the previous session. The big news ... the car is under 2900lbs ... scaled in at 2885lbs w/a bunch of caveats and to be fair to reality:

1/4tank of gas
2gall of water meth
Ypipe & muffler delete
Ran headlight shells
Removed the wiper assembly
Didnt have the front strut tower brace on the car(couldnt fit it over a plenum spacer I temporarily put on)
took a bunch of non-essentials out of the car
Ran the Advans (42lbs per wheel versus enkies at 50lbs per wheel).

The car will be back into the 2900lb range until I can get that dry cf hatch - obviously gotta run wipers/headlights/exhaust but its a nice little milestone.


Pass #1 - 13.74 @ 116.13mph, .249rt, 0% duty cycle BCS, ~10-12psi of boost - pretty good pass reaction could have been better but smooth shifting and the car powered through well.

Pass #2 - 15.01 @ 102.37mph, .022rt, 20% duty cycle BCS, ~15-18psi of boost - run sucked... missed 3rd gear bad and traction control was all over me in 2nd gear.

Pass #3 - 16.03 @ 104.16mph .044rt 20% duty cycle BCS ~15-18psi of boost - run wasnt great shifting was better, RT was good but traction sucked especially at high revs

Pass #4 - 14.10 @ 109.17mph - .216rt 10% duty cycle BCS ~ 12-15psi of boost - better run, RT was higher and I was a little gent'ler with shifting

A good night overall and Im super tired and will sleep well tonight!!!

A few after-thoughts moving forward -

might be time for a set of dedicated slicks ... would be easier if I had an extra set of wheels. Might just use the r888s I already have for the time being.

Goddmn it'd be nice to have a trailer ... even with the pickup it's still a pain in the butt!!

I didn’t run water-meth at all - the jury is still out but I may part-ways with the setup...I don't know that it's helping me.

turbo lag is kicking my *** ... might revamp the intercooler setup and revise the intake to shorten the intake track as a whole - sorta how meatbag runs his setup.

It might be time to part ways with the Haltech ... Reading & hearing really good things about the link G4+ at 1/3rd the cost of the haltech elite.

I think being lighter helps out more at higher speeds than it does at lower speeds (not like anyone gives two *****)...

Goals for the next session:
strap on the enkeis/r888 at least on the rear.
a few easy pulls with no BCS duty cycle and slowing increase boost
quit missing shifts
under 13.25et / under.15rt

(picture sucks)








Last edited by bealljk; 08-24-2018 at 04:18 PM.
Old 08-24-2018, 05:28 PM
  #564  
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Interesting breakdown, couldn't put the power down with the higher boost. Those trap speeds are suggestive of a mid 11 car though.


I was in the mid 13's when I was slipping with Michelin Pilot SS's (275's).

When I went and blew my diff with the 305 drag radials I ran a 12. 8

Can you tune in your traction control with the haltech? The stock one sucks so I turn it off.

Old 08-24-2018, 06:12 PM
  #565  
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^encouraging ...

I was pretty happy with the 116mph pass (speed-wise)

It really seems like the car cooks once it gets moving - turbos dont kick in until 3000rpms so it's just a slow start ... too much duct work? likely

I'm really really leaning towards selling the haltech and looking into the haltech elite or the link G4+ standalone.

Also fellow member JDM_V35 brought some perspective about weight reduction (which I know I'm batshet) but the smarter thing to do is go get retuned and max-out the engine ... at 12-14psi I'm in the mid to high 400s...I get tuned to 24 to 27 psi and I'm in the 700s ... 2900lbs/700 = 4.2, 2700/450 = 6.0 and the retune would be half the cost of a CF hatch...

I'll also run the R888 seeing that I have them ready to go...

The best part of this is that its just one big experiment ... if something doesnt work try something else...

Last edited by bealljk; 08-24-2018 at 06:18 PM.
Old 08-29-2018, 08:39 PM
  #566  
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Ahhhh good times...woke up this morning and wasn't sure if I was going to take the car to the track for test & tune but decided to take the car to work and make a game time decision. 3pm came around and I felt really good about getting the car out. Got to the track, tech'd, and geared up. Had two really good runs and one ehhhhh so-so runs and one shi-tay run...put the enkeis / r888 wheels on the back and the advan / proxes 4 on the front, full exhaust/everything back on the car, 1/2 tank of gas and full 5gallons of water meth and bc I didn't have my pickup there I also had tools, clothes, misc stuff - the car came in at 3035lbs.

Run #1 - matched up against (I believe) a fully stock on street tires camaro ZL1. I ran 12.939s @ 115.62mph RT of .126s. The camaro ran 12.536s @ 116.87mph. I think I was pushing 12psi of boost. All my shifts were smooth and no traction issues.
Run #2 - matched up with a camaro SS, ran a 13.478s @ 113.49mph RT of .239s, he ran a 13.039s @ 109.73mph … if I remember right I didn't get into 3rd gear efficiently and lost some time.
Run #3 - up against a C6 Z06 w/some mods, owner said he was pushing 580hp, ran a 13.311s @ 117.4mph RT of .096s. The Z06 ran a 12.779s @ 117.01mph. I added some BSC and was pushing around 15psi.
Run #4 - sucked 14.353 @ 109 missed a shift and the car mis-fired
Run #5 - sucked hard 15s @68mph (just a get into 6th to get off the track), couldn't get the car started and had to scramble to get a jump box on the battery, also loaded a tune with too much BCS … shtay run that's all.

overall happy … really happy with the 117mph run and the 12.94 run, first time I've been in the 12s...still looking to go full stand alone and re-tune.

I was in line to take a 6th pass and with 35 or 40 sets ahead of me I just bailed... it struck me that my better passes are usually my first few of the day and that these mis-fires are occurring towards the end of the day/night. The car not starting on my 5th pass essentially drained my battery and although the car got started Im starting to think the mini alternator and lightweight battery are the issues. More so the mini alternator - which is pushing 54amps at anything above ~2k rpms … So I think it's time to put the OEM alternator back on and abandon the smaller alternator idea. I don't know how the battery will do when the alt is putting ~120amps out but I may jump up in size once this battery expires - only one way to find out.

For the humanity of the 350z realm - you need more than a 60amp alternator to run the bare-basics … maybe an 80 or 90 is the smallest one should go.

Last edited by bealljk; 08-29-2018 at 08:48 PM.
Old 08-29-2018, 09:22 PM
  #567  
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Nice runs. How are your 60ft times?
Old 08-30-2018, 06:25 AM
  #568  
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With that Mile per Hour, you should be at least in the very low 12" or high 11's


Originally Posted by bealljk
Ahhhh good times...woke up this morning and wasn't sure if I was going to take the car to the track for test & tune but decided to take the car to work and make a game time decision. 3pm came around and I felt really good about getting the car out. Got to the track, tech'd, and geared up. Had two really good runs and one ehhhhh so-so runs and one shi-tay run...put the enkeis / r888 wheels on the back and the advan / proxes 4 on the front, full exhaust/everything back on the car, 1/2 tank of gas and full 5gallons of water meth and bc I didn't have my pickup there I also had tools, clothes, misc stuff - the car came in at 3035lbs.

Run #1 - matched up against (I believe) a fully stock on street tires camaro ZL1. I ran 12.939s @ 115.62mph RT of .126s. The camaro ran 12.536s @ 116.87mph. I think I was pushing 12psi of boost. All my shifts were smooth and no traction issues.
Run #2 - matched up with a camaro SS, ran a 13.478s @ 113.49mph RT of .239s, he ran a 13.039s @ 109.73mph … if I remember right I didn't get into 3rd gear efficiently and lost some time.
Run #3 - up against a C6 Z06 w/some mods, owner said he was pushing 580hp, ran a 13.311s @ 117.4mph RT of .096s. The Z06 ran a 12.779s @ 117.01mph. I added some BSC and was pushing around 15psi.
Run #4 - sucked 14.353 @ 109 missed a shift and the car mis-fired
Run #5 - sucked hard 15s @68mph (just a get into 6th to get off the track), couldn't get the car started and had to scramble to get a jump box on the battery, also loaded a tune with too much BCS … shtay run that's all.

overall happy … really happy with the 117mph run and the 12.94 run, first time I've been in the 12s...still looking to go full stand alone and re-tune.

I was in line to take a 6th pass and with 35 or 40 sets ahead of me I just bailed... it struck me that my better passes are usually my first few of the day and that these mis-fires are occurring towards the end of the day/night. The car not starting on my 5th pass essentially drained my battery and although the car got started Im starting to think the mini alternator and lightweight battery are the issues. More so the mini alternator - which is pushing 54amps at anything above ~2k rpms … So I think it's time to put the OEM alternator back on and abandon the smaller alternator idea. I don't know how the battery will do when the alt is putting ~120amps out but I may jump up in size once this battery expires - only one way to find out.

For the humanity of the 350z realm - you need more than a 60amp alternator to run the bare-basics … maybe an 80 or 90 is the smallest one should go.
Old 08-30-2018, 06:26 AM
  #569  
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With that Mile per Hour, you should be at least in the very low 12" or high 11's


Originally Posted by bealljk
Ahhhh good times...woke up this morning and wasn't sure if I was going to take the car to the track for test & tune but decided to take the car to work and make a game time decision. 3pm came around and I felt really good about getting the car out. Got to the track, tech'd, and geared up. Had two really good runs and one ehhhhh so-so runs and one shi-tay run...put the enkeis / r888 wheels on the back and the advan / proxes 4 on the front, full exhaust/everything back on the car, 1/2 tank of gas and full 5gallons of water meth and bc I didn't have my pickup there I also had tools, clothes, misc stuff - the car came in at 3035lbs.

Run #1 - matched up against (I believe) a fully stock on street tires camaro ZL1. I ran 12.939s @ 115.62mph RT of .126s. The camaro ran 12.536s @ 116.87mph. I think I was pushing 12psi of boost. All my shifts were smooth and no traction issues.
Run #2 - matched up with a camaro SS, ran a 13.478s @ 113.49mph RT of .239s, he ran a 13.039s @ 109.73mph … if I remember right I didn't get into 3rd gear efficiently and lost some time.
Run #3 - up against a C6 Z06 w/some mods, owner said he was pushing 580hp, ran a 13.311s @ 117.4mph RT of .096s. The Z06 ran a 12.779s @ 117.01mph. I added some BSC and was pushing around 15psi.
Run #4 - sucked 14.353 @ 109 missed a shift and the car mis-fired
Run #5 - sucked hard 15s @68mph (just a get into 6th to get off the track), couldn't get the car started and had to scramble to get a jump box on the battery, also loaded a tune with too much BCS … shtay run that's all.

overall happy … really happy with the 117mph run and the 12.94 run, first time I've been in the 12s...still looking to go full stand alone and re-tune.

I was in line to take a 6th pass and with 35 or 40 sets ahead of me I just bailed... it struck me that my better passes are usually my first few of the day and that these mis-fires are occurring towards the end of the day/night. The car not starting on my 5th pass essentially drained my battery and although the car got started Im starting to think the mini alternator and lightweight battery are the issues. More so the mini alternator - which is pushing 54amps at anything above ~2k rpms … So I think it's time to put the OEM alternator back on and abandon the smaller alternator idea. I don't know how the battery will do when the alt is putting ~120amps out but I may jump up in size once this battery expires - only one way to find out.

For the humanity of the 350z realm - you need more than a 60amp alternator to run the bare-basics … maybe an 80 or 90 is the smallest one should go.
Old 08-30-2018, 07:20 AM
  #570  
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Originally Posted by WTFMike
Nice runs. How are your 60ft times?
I meant to post my slips ... it was late, I wanted to go to bed! I’m #499











Originally Posted by OldManZ350
With that Mile per Hour, you should be at least in the very low 12" or high 11's
Thanks OMZ - two thoughts ... #1 - I'm a noob and need more seat time, my ETs and trap speeds are getting better with each sessions. And I think it helped that I ran a non-street tire.

#2 - (asking with the utmost respect) have you run 1/4s at elevation? Any thoughts on the effects of elevation - sea level vs. altitude? I don't know if it's me or if its the lack of oxygen but damn it sucks!

Big picture, I'm getting there. I'm figuring out my ECU situation and a retune should add 100 or 200 more hp. formal slicks may be in my future.

Thanks to everyone for the encouragement!

Last edited by bealljk; 08-30-2018 at 08:39 AM.
Old 08-30-2018, 10:54 AM
  #571  
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The affect of altitude robes Hp, less Oxygen and less pressure. But it is relative and does not affect the relation between ET & MPH

I saw your MPH and your cars is pulling good, But your ET is down big time.

Slicks are a must for the drag strip.

The Good thing is, it tell tells you that you have a lot of room for improvement

Hint: Try leaving as soon as the 3rd yellow lights.

Hope this Helps

I understand about being new at it, and you will get much better with time.

Drag Racing is not Easy
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Old 08-30-2018, 01:28 PM
  #572  
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Originally Posted by OldManZ350
Drag Racing is not Easy
I'm gonna get this on a T-shirt

Thanks OMZ - I appreciate the insight. I give myself half a beat on the 3rd light and go ...

formal 7 and 9lb bov springs came in

EDIT: the 9psi spring is the winner ...


Last edited by bealljk; 08-30-2018 at 04:49 PM.
Old 09-02-2018, 04:22 PM
  #573  
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What welder did you end up buying to weld Aluminium? See you at z nationals / zcon. Lol
Old 09-02-2018, 10:17 PM
  #574  
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Originally Posted by Tran251
What welder did you end up buying to weld Aluminium? See you at z nationals / zcon. Lol
Everlast DX200 - AC/DC TIG & Stick


Originally Posted by bealljk
And my dash lights / far left gauge (temp/fuel econo/timer/TPMS) is out ... checked fuses and nothing is jumping out at me...might be a ground??
it's cause I'm dumb ... I didnt check the fuse in slot #6 bc I didnt have a fuse in there in the first place - long story, it got moved . To the credit of the nissan folks - whomever wrote Section DI did a pretty good job.
Old 09-03-2018, 06:51 AM
  #575  
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Originally Posted by bealljk
it's cause I'm dumb ... I didnt check the fuse in slot #6 bc I didnt have a fuse in there in the first place - long story, it got moved . To the credit of the nissan folks - whomever wrote Section DI did a pretty good job.
I can't even count how many times I've had some stupid issue with my build because I overlooked something simple.

Old 09-03-2018, 08:53 AM
  #576  
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Originally Posted by WTFMike
I can't even count how many times I've had some stupid issue with my build because I overlooked something simple.
Sorta a double-edged sword ... would you rather it be something exhausting or something simple? lol!! and I'm that much smarter ... my expectations were rather low digging into the 'electrical' section of the FSM last night.
Old 09-03-2018, 10:03 PM
  #577  
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Good G'darn'it

Haltech Platinum Pro standalone $1200
Link G4+ standalone $1200

grrrrr...

Last edited by bealljk; 09-03-2018 at 10:23 PM.
Old 09-04-2018, 06:48 PM
  #578  
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What has the better more user friendly software?

in the end they both have the same capabilities correct?
Old 09-04-2018, 07:54 PM
  #579  
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Originally Posted by Conway_160
What has the better more user friendly software?

in the end they both have the same capabilities correct?
Thats a really good question - from the exposure I've had (which is minimal) ... I still dont know

I think the Link has better features but it's also newer. One thing that I really really like about the Link is that you can assign or reassign used / unused / unassigned ECU terminals for the additional sensors or outputs I need. Meaning, I can re-assign the OEM narrow-band terminals to Link wideband sensors and take my wideband readings from that terminal. I think Link has better tuning tools within the program...hell, I really dont know - I'm up in the air.

Old 09-05-2018, 02:33 AM
  #580  
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Hmm what a pickle first world problems lol.


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