Z-Gad Posted July 21, 2014 Author Share Posted July 21, 2014 Footbrake, leaving with 7-8 lbs of boost Just found out part of the problem...the MegaSquirt was pulling up to 4* of timing for the second half of the track due to the intake temps above 200*F!! I completely missed that in my initial evaluation of the day's tuning... Timing is 19-20 * at 18-19 psi Just to do a little bench racing... Best 60' with the 2JZ was 1.32 so for every .1 in the 60' = .15 in ET, so roughly .3-.4 Car is around 200 lbs heavier than with the 2JZ, roughly .1 for every 100 added weight... that's .2 Car pulling out timing for half the run, maybe another .1 Add all that up, and it is right where I was with the 2JZ...at 30psi and 100 shot of nitrous Car has A LOT more in it 1 Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted July 21, 2014 Author Share Posted July 21, 2014 AFR's were conservatively between 11.3-11.5 : 1 Quote Link to comment Share on other sites More sharing options...
clarkspeed Posted July 22, 2014 Share Posted July 22, 2014 Keep us updated Mike. That car is sick! Would love to watch it run. Quote Link to comment Share on other sites More sharing options...
Zfan1 Posted July 22, 2014 Share Posted July 22, 2014 Video? Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted July 24, 2014 Author Share Posted July 24, 2014 Won't be able to get track video until I'm legal again... My NHRA license expired a couple years ago, so I cannot simply renew ... I have to go through the whole process again. NHRA physical next week, then... Hopefully certification run the following week... Quote Link to comment Share on other sites More sharing options...
Zfan1 Posted July 24, 2014 Share Posted July 24, 2014 Good luck with it! Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted August 3, 2014 Author Share Posted August 3, 2014 NHRA license runs and physical complete - Woohoo!! I worked on the launch tune, and left the rest alone. I needed to make two 9 second passes, and knew it was good for mid 9's already... So...performance gains were found completely in the 60' Last pass was... 60' ... 1.456 1/8 ... 6.081 mph .. 117.05 1/4 ... 9.443 mph .. 145.44 Again, sorry, no video... Quote Link to comment Share on other sites More sharing options...
thezguy Posted August 3, 2014 Share Posted August 3, 2014 Wow great times! you really need to get some videos up man. Quote Link to comment Share on other sites More sharing options...
Turbo Meister Posted August 3, 2014 Share Posted August 3, 2014 Nice run...good to see you back in action. Quote Link to comment Share on other sites More sharing options...
DAV240ZTRIP Posted October 2, 2014 Share Posted October 2, 2014 Can't wait to see video! Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted October 7, 2014 Author Share Posted October 7, 2014 Quickie update... As many of you know, little over a month ago I had something let go in the bottom end of the built motor at the track, effectively destroying the short block and everything inside with maybe 500 miles on it. Fortunately the heads escaped unscathed... Had a thread on here, but it all disappeared with the site crash a month ago... Anyway, after a month and a half of number crunching, and agonizing on what to do since a new built bottom end is not in the cards right now, and I know I won't feel comfortable with just a stocker... I've decided to take the car down for a while to do some things to it that I have wanted to do, part out the turbo LS setup, and go back to the 2JZ. I'll be posting some items in the for sale section shortly... Quote Link to comment Share on other sites More sharing options...
datASSun Posted October 7, 2014 Share Posted October 7, 2014 Sorry to hear that. Did you figure out what let go in the bottom end ? Also a LSX block is 2500 bucks give or take another 500 in machine work and you won't have weak block problems anymore.. Not that a aftermarket rotating assembly is very affordable. Quote Link to comment Share on other sites More sharing options...
Daz Posted October 7, 2014 Share Posted October 7, 2014 (edited) Sorry to hear this ! So ahhh..... How much gonna want for the hotside ? Edited October 8, 2014 by Daz Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted October 7, 2014 Author Share Posted October 7, 2014 Sorry to this ! So ahhh..... How much gonna want for the hotside ?I'm going to keep the turbo and maybe the wastegate, so I guess it would depend on how much of the hot side you would want/need...I know this isn't the for sale section, so if someone is interested, PM me and we can talk further Quote Link to comment Share on other sites More sharing options...
SUNNY Z Posted October 8, 2014 Share Posted October 8, 2014 Sorry for your misfortune, sounds like you had THE bad experience with an LSx. BUT, thats why most people get the setup figured out on a stocker. I killed about every bearing in the bottom end, and I'm out $450. Out of curiosity, what does a 2J cost to make the power you had before? Which was? Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted October 8, 2014 Author Share Posted October 8, 2014 Starting with a stock longblock, (just picked up a complete JDM 2JZGTE pullout with trans for 1600) I dropped in a pair of HKS 272 cams ($800) in a stock longblock, with stock valvetrain, and ran as quick as 9.7 @ 144 with 72mm turbo, and supporting fuel/engine management. I ran it for a couple years like that, and engine still ran fine when pulled, and was only pulled when my built engine was done... For my previous built longblock, .020 oversize Ross forged pistons and Eagle rods Stock n/a block and stock crank ARP 1/2 in head studs ARP mains Ported head 1mm oversize Ferrea valves crower 280 cams, springs, retainers Stock metal head gasket 100 shot of nitrous and 30 psi boost went 8.91@153 with R200 rear and 300zx CV's The money spent was pretty equal between the two built engines (2JZ or LSx) Quote Link to comment Share on other sites More sharing options...
thezguy Posted October 8, 2014 Share Posted October 8, 2014 Sucks to hear that but damn I love a 2JZ Quote Link to comment Share on other sites More sharing options...
v8dats Posted October 8, 2014 Share Posted October 8, 2014 ... =) Quote Link to comment Share on other sites More sharing options...
SUNNY Z Posted October 9, 2014 Share Posted October 9, 2014 Interesting. Wish you'd gotten that setup lined out. I think you would have squealed when it went low 8's like it could have. Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted October 10, 2014 Author Share Posted October 10, 2014 Interesting. Wish you'd gotten that setup lined out. I think you would have squealed when it went low 8's like it could have. I know, I know... It has not been an easy decision to make. The time, $ spent, and final product is hard to walk away from. It definitely had the potential to go low 8's once tuned and sorted. (Sigh) Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.