Cjarloz Posted December 16, 2004 Share Posted December 16, 2004 I have finally entered into the 13's. 13.7 to be exact, with 9 lbs of boost 3.54 non lsd yay heres a video sorry didnt have it when i posted. http://www.vqpower.com/maximumsportZ/VGC_Trackday3/chrisVS240Zturbo.mpg Quote Link to comment Share on other sites More sharing options...
Drax240z Posted December 16, 2004 Share Posted December 16, 2004 My 72 240z L28ET ran 13.83 at 9psi and an open 3.54:1 diff. Sounds familiar! I had some serious traction issues... Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted December 16, 2004 Share Posted December 16, 2004 Cool Carlos!! Quote Link to comment Share on other sites More sharing options...
wigenOut-S30 Posted December 16, 2004 Share Posted December 16, 2004 Awesome man.. Great job.. I cannot wait to hit the track again since I have the IC... Quote Link to comment Share on other sites More sharing options...
Scottie-GNZ Posted December 17, 2004 Share Posted December 17, 2004 Awesome!!!! Glad to see you finally got it going. Quote Link to comment Share on other sites More sharing options...
Cjarloz Posted December 17, 2004 Author Share Posted December 17, 2004 yea but now that i got used to some boost lol im addicted. i need a daily so i dont have to worry about speeding lol. Quote Link to comment Share on other sites More sharing options...
orklc Posted December 18, 2004 Share Posted December 18, 2004 Scottie: I think the car pulls hard through 1st and 2 gear but top end is laying down a little. I am thinking that the hydrulic lifters are discharging by the time they get to 3 rd gear and the engine is not processing as much power. What you think? Talking about getting it going, How is the red RX7GNZ going? Any track time as of yet? Quote Link to comment Share on other sites More sharing options...
Scottie-GNZ Posted December 18, 2004 Share Posted December 18, 2004 If you are not losing boost or have a badly slipping clutch, then you might be on the right track with the power problem. The Buick turbo engines have a similar problem caused by weak valve springs which would produce the same symptoms and results. What was the trap speed and did you guys put an I/C in the car? Tried to run the 7 last Sunday and the engine felt strong but the car was an absolute dog only able run 11.7 @ 114.4mph with the datalog showing the engine almost at redline thru the traps. Brand new Art Carr convertor was slipping at close to 40% all the way down the track! They will fix it for free, but dangnabbit, I have to pull it and ship it back to them again. Quote Link to comment Share on other sites More sharing options...
Cjarloz Posted December 18, 2004 Author Share Posted December 18, 2004 scottie traps were 98 and 99 mph almost everytime. and yes we have an intercooler. one from a ford probe. i was crossing the finish like around 5800 to 6000 rpm in third. i dun think i was having issues cooling the air from the intercooler considering the fact that it was like 30 degrees that night, if thats what your asking about. Quote Link to comment Share on other sites More sharing options...
Scottie-GNZ Posted December 19, 2004 Share Posted December 19, 2004 13.7 in a 240Z turbo with 3.54 should probably trap 5mph more. What was the 1/8-mile ET/MPH? I know a lot of folks do not want to hear this and do not agree with me, but I think part of the problem is the I/C being too restrictive. That I/C was designed to support an OEM engine with ~150hp. No one can argue that OEM I/Cs in a low-cost car like the Probe was very efficient and probably has a fair amount of pressure drop with the stock engine. Anyone believe that I/C was designed to support another 50% increase in flow with any efficiency? With a good trap speed, I put you in the 210+rwhp range and would not be surprised if the turbo is pushing 13+psi to net you 9 at the intake. That translates into higher intake temps. Definitely look into the lifters or even a swap to a P90. If you run again soon w/o changing anything, shift into 4th and not run it up to 6000 in 3rd to see if that helps. I do not believe a stock L28ET gains anything above 5800. If you have a bigger turbo and exhaust it would be a little different. Quote Link to comment Share on other sites More sharing options...
Cjarloz Posted December 20, 2004 Author Share Posted December 20, 2004 RT - .658 60 ft - 2.083 330 - 2.083 1/8th - 8.831 mph- 79.97 1000 - 11.476 1/4th - 13.733 mph - 99.23 Quote Link to comment Share on other sites More sharing options...
clarkspeed Posted December 21, 2004 Share Posted December 21, 2004 Congrats, Ken took me for a ride in it 2 weeks ago. That car is sooo nice. Quote Link to comment Share on other sites More sharing options...
Scottie-GNZ Posted December 21, 2004 Share Posted December 21, 2004 The car gained less than 20mph in the 2nd half and I believe your light weight and 3.54s should net more than that. Not a diss but inspiration for you to know the car can do a lot better. If you are using regular street tires, talk to Z-Gad about a pair of DRs as there is lots to gain by working on the 60'. Nail that 60' and turn it up to 15psi and you will need surgery to get that sh*t grin off your face. Quote Link to comment Share on other sites More sharing options...
Cjarloz Posted December 21, 2004 Author Share Posted December 21, 2004 lol yes i need new injectors im using stock and tires mine were balding as well as lsd but just to remind you my focus for this car is not drag it is for track use. aka left and right turns. but its hard to make modifications on a student budget who do you think i am ON3GO. Quote Link to comment Share on other sites More sharing options...
Guest ON3GO Posted December 21, 2004 Share Posted December 21, 2004 but its hard to make modifications on a student budget who do you think i am ON3GO. ouch... mike Quote Link to comment Share on other sites More sharing options...
Drax240z Posted December 21, 2004 Share Posted December 21, 2004 Dude I have no idea how you spend so much on your cars as a student! Quote Link to comment Share on other sites More sharing options...
Guest ON3GO Posted December 21, 2004 Share Posted December 21, 2004 Dude I have no idea how you spend so much on your cars as a student! work, side jobs, and pretty much all the money that was spent on the green Z and now some of the blue Z was from the sale of my Z32 project. in florida i worked crazy hours all the time, as some of the other "kids" thats on this site knows about as i would come on the internet at 5am from just getting off work and then head back to work at 8am. right now im working at a local euro repair shop and doing some aftermarket work on the side for some local import/domestic kids that dont know how to install a short throw shifter. cheap and easy money. cant do big jobs as i dont have the tools or know how sometimes. on this time for the blue Z's motor rebuild i had to ask my mom for alittle cash as the motor rebuild was about double the price it should have been. plus on some weekends i help a friend polish parts for his customers, just wish i could do my own parts mike Quote Link to comment Share on other sites More sharing options...
Drax240z Posted December 21, 2004 Share Posted December 21, 2004 Well I really commend you for finding the time to work so much while going to school, that's a tough haul at times! I suppose I could have worked while at school too, instead I spent 50 hours a week on FSAE on top of my classes. That would have been a lot of money had I been getting paid! Quote Link to comment Share on other sites More sharing options...
Scottie-GNZ Posted December 21, 2004 Share Posted December 21, 2004 ..but just to remind you my focus for this car is not drag it is for track use. aka left and right turns. My exact words when I started running the Z (L28ET-powered) to dial in the power in preparation for autocrossing and Porsche/BMW drivers schools. Lets revisit this discussion in a couple of months when you crack into the 12s and start notching "musclecar" victims on your door :D Quote Link to comment Share on other sites More sharing options...
Drax240z Posted December 21, 2004 Share Posted December 21, 2004 If your goal is to compete on the track, concentrate on traction rather than more power at this point. Quote Link to comment Share on other sites More sharing options...
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