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Going fast reliably... well I'm not sure you can without damn near a bottomless wallet. That was the take I got from the GTR video. If you've got a trust fund to pull from endlessly, then cram on the horsepower, but plan on an engine rebuild/replacement frequently. :icon14: I'd love to build my car to the 600hp range, but after doing the research (which included reading Spooler's, Elmo's and some failed build threads), I determined that I was happy with where my car is right now. I'm not at a place in life where I can drop $20K+ on a TT car and be without the car for 6 months or more. I'm okay with that. Spooler has been gracious enough to share with the community the challenges he's gone through to get his car where he wants it. I'll just live vicariously through him, Elmo & jchammond's builds and wish I had the $$$$ to do the same. :tup: |
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I feel like I just buy parts for a car that I haven’t seen in two years.
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Without sounding like a total pu 55y, does anyone with any success in regards to traction at this power level? I hate to say it right now man but I kinda don’t like this thing. Lol it’s damn scary, just tried a launch and it feels like I’m trying to wrangle her down and between the lines from zero to 130+. Like in 5th gear still feeling like I’m on skates. My launch is perfect, I take right off the line but as soon as I go into boost, even with boost by gear, the damn thing immediately hits redline, shift, immediately redline, 3rd is at least worth something and I get moving, but after all that power, I’d still be slower off the line than my c8 and my buddies stock supra. As soon as I go full throttle it’s immediate redline. If you try to feather it, you’ll them lose boost. I don’t get it
I have the MT super streets, 305/35/18, they are aired down to 27 cold, (originally I thought I went 24 but checked them after the run and they were cooled down) wondering if I should go lower but can’t imagine that’ll make THAT much of a difference. I did a burn out to heat up the tires, then did my launch, maybe just too cold outside? It was in the 50s when I tested this out. Wanted tonight to boost my confidence in launching and rolling through gears, instead it did the opposite :( I love her, but damn man tonights one of those where you're just down in the dumps :/ |
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[QUOTE=GeauxTigers1;3984076]Without sounding like a total pu 55y, does anyone with any success in regards to traction at this power level?
I have the MT super streets, 305/35/18, they are aired down to 27 cold, (originally I thought I went 24 but checked them after the run and they were cooled down) wondering if I should go lower but can’t imagine that’ll make THAT much of a difference. I did a burn out to heat up the tires, then did my launch, maybe just too cold outside? It was in the 50s when I tested this out. You’re a bit high on pressure; though with a stick shift Z, may require more sidewall...like in a 17” wheel or smaller :ugh2: Also factor in your rear camber settings, as 0* or even a tick on + side would be optimum for Dragstrip, as rear wheels naturally camber negative on launching :tup: |
Stock springs/height and rear alignment all zeroed out made Justin’s Z hook up insanely better than mine. Needs the higher center of gravity and softer suspension both to greatly aid weight transfer to the rear tires.
Also make sure your tires are fresh. Drag radials heat cycle out and lose grip long before the tread is worn out, especially on IRS cars that heat them up a lot more during highway driving, in my experience |
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LOL We are in the same boat. Gotta dial in the suspension. I was going to Motec to help with this but it appears it may be a while longer until I do that. 720whp is where my car was best. I feel the same. You have to work your butt off in the drivers seat. Try 900whp, that is wild. The car is constantly trying to kill you. When it is below 80 deg, forget it. I have a new set of 325/30/19's going on when it gets warm. I need to finish getting my 17's for the rear. Going to a MT Street R 305/45/17. They will only be on the car when needed to prevent heat cycling them out. |
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haha sounds good! She goes in Wednesday to install the splitter so I'll definitely have them check rear camber. I want 17s man but none of the wheels I like come in the fitment we need to clear Akebonos :( I might just have to settle on the wheels just to have a 17 option. Just can't imagine it'll make that much of a difference just form 18s to 17, but I guess there's a reason everyone always goes the smallest wheels possible. This stupid car. lol
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Diabel with his build awhile back had said at his peak of 77X?rwhp that felt like the limit of traction for the street. Derek, me and you saw that on our "Day of destruction" you were good till you tried that 25psi. What I need now is to score a set of DSS axles then I'm done. I have an odd feeling as soon as I get my new clutch in , I'm gonna twist up the stocks.
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Many folks end up selling their baby after that, myself included too many times, and then we reminisce about our old cars we wish we still had. Never making that mistake again. |
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That’s straight through The Drive Shaft Shop in Salisbury NC :tup: They also offer an upgraded CF driveshaft for the M/T Z’s...but mine’s an A/T, so they need my old one for accurate dimensions to make one :ugh2: |
I linked these over in my thread but seems relevant to the conversation above, here.
no affiliation but maybe these could help with traction issues? /shrug |
Throttle body sizing... Live now.
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So, the jest of it is to measure the boost pressure in front of the throttle body and also after the throttle body. You are looking for the pressure difference. 3/4 psi, not a big deal. 5 psi, it would be worth looking at upgrading. He also gives the math for the sizing on a N/A car.
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72 deg. today. I got a good drive in this afternoon. I had to get my boost junkie fix.
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Winters Quick change anyone....
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There once was a man from Claxton,
Who’s twin turbos were set to maximum He went for a spin, cause he liked to win, And ended up scaring JChammond. |
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Sent from my SM-G975U using Tapatalk |
Wow... I'm a lot salty I just found out about the steering rack and K member modification. I literally just had a custom pan built because I couldn't find anything like that.
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Great video on engine diagnoses. I have watched it before, figured I would post it if I haven't already.
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Sitting here debating on what to do with the car tune wise. I have no choice but to go to boost by gear. 4 port MAC valve here we come. I think I want to do 12,12, 17, 24,30,30. 4th is iffy at 25psi right now. I am gonna need an old man tune at 12,12,17,17,17,17 when I am running pump E85. Sure would like to be driving back and forth to work again to enjoy the car. Working from home has it's good and bad.
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