mas28O Posted August 13, 2004 Share Posted August 13, 2004 Congratulation Cyrus on the swap. I hope that you keep this one longer than the ls1 swap. Mike Quote Link to comment Share on other sites More sharing options...
cyrus Posted August 13, 2004 Author Share Posted August 13, 2004 Went to michaels muffler he turned me away saying it was too hard. Speed mechant estimate 7 to 8 hundred. And babe and lightning is doing it for 275!!! sweet!!! I am going to sacramento tomorrow to race if I can get a hood latch, catch can, and battery hold down tonight. Anyone else racing tommorow? Also it does not feel that powerful stock I am guessing 12.9@109. Quote Link to comment Share on other sites More sharing options...
wigenOut-S30 Posted August 13, 2004 Share Posted August 13, 2004 Let us know how you do.. Plus.. anyone bringing a video camera?? Quote Link to comment Share on other sites More sharing options...
Hybrid240z Posted August 14, 2004 Share Posted August 14, 2004 Cool Cyrus, good to hear it's running. Send me some pics if you want me to post them before I leave work for the weekend. Get some video too and see if someone can post it. Quote Link to comment Share on other sites More sharing options...
cyrus Posted August 15, 2004 Author Share Posted August 15, 2004 I have returned from Sacramento. And I ran a..................................................... 14.4@98mph... I was not to happy. I then ran a 100mph pass, then a 103, the a 106.5. And I was not doing anything signicantly different. The car was weak and surging at the top end. I saw a supra there with the minor mods busting out 12.3@116 (3400 lbs). I also weighed my car. My LS1 240z wieghed 2350 lbs with the same mods this car weigh 2550 lbs. So the 6 cylinder weighs 200 pounds more than the V8. Anyways I will change the old nasty plugs, etc. The car should be at 114mph. Fight on! Quote Link to comment Share on other sites More sharing options...
Guest zyg0te Posted August 16, 2004 Share Posted August 16, 2004 where did u race at (im from stockton) Quote Link to comment Share on other sites More sharing options...
stony Posted August 16, 2004 Share Posted August 16, 2004 Hey cyrus, Have you raced much? at the track that is. I did alot of street racing back in the day and racing at the track i found to be alot different then the street Anyways my first trip to the track yeilded alot of mid 12s in teh low 100s. with some practice launching and no other mods i eventually ran a 11.138 at 120mph. i dynoed shortly after this and i was sitting at 350RWHP on stock booste and maxed injectors. changed injectors and turned booste up a little,tuned on the dyno yeilded 392RWHP, slower ETs but higher 127+ traps. i was slower due to breaking crap and having to baby it off the line. Are you still running the r-200? if so beware. Do not launch hard with sticky drag radials at 20 PSI or lower. tire spin is nice it prevents breakage. At any rate i predict you will be dancing around the low 11s soon. Good luck Quote Link to comment Share on other sites More sharing options...
stony Posted August 16, 2004 Share Posted August 16, 2004 BTW did you get video of the maden voyage? keep us posted. BTW all you rbswapper wannabes This is the way to go if your in the US. I think its a tad cheaper and parts availabilty is ALOT better!!!!! not to mention its a 3 liter stock and a turbo upgrade will make this car scream!~!!!! Quote Link to comment Share on other sites More sharing options...
cyrus Posted August 16, 2004 Author Share Posted August 16, 2004 I have race lots of times. I know the engine is 120 or so down on power from stock. Quote Link to comment Share on other sites More sharing options...
Guest ON3GO Posted August 16, 2004 Share Posted August 16, 2004 I have race lots of times. I know the engine is 120 or so down on power from stock. why? mike Quote Link to comment Share on other sites More sharing options...
cyrus Posted August 16, 2004 Author Share Posted August 16, 2004 I do not know, it was surging at the top end. I will change the plugs and do a compression check. Quote Link to comment Share on other sites More sharing options...
Guest bastaad525 Posted August 17, 2004 Share Posted August 17, 2004 why do you say the power is down 120hp?? Stock 2jz has like 325hp at the crank right? You're estimating it's losing 120hp? that would put it close to 200hp at the crank, or about 170hp at the wheels. You said your initial run was 14.4 @ 98, but that your traps kept getting faster... you never did mention what your final ET was though. If you're running 106.5mph in the traps you're putting down more than 170hp to the wheels though! Just guessing your car weighs about 2700lbs with you in it. 106.5mph with 2700lbs means you're putting down about 255hp to the wheels. Factor in 15% drivetrain loss, and assuming you were driving it pretty much 100% perfect, that would put you at just about 20hp less than a stock 2jz. 20hp or roughly .2 second, that could easily just be you getting used to the car... I'd say your traps indicate power is right on the mark.... Quote Link to comment Share on other sites More sharing options...
cyrus Posted August 17, 2004 Author Share Posted August 17, 2004 Ok here is my thinking. all with driver stock supra (320 hp,3600lbs) 106.6mph my old z (400 hp, 2550 lbs) 119 mph so 240z (320 hp, 2750 lbs) = supra -850 lbs or ~115 mph I compression checked the car it is fine. I changed the plugs and the car runs amazingly better. No more missfire under high boost. ps notice how the supra is underated... Quote Link to comment Share on other sites More sharing options...
LS1240Z Posted August 17, 2004 Share Posted August 17, 2004 Your old Z has 332 HP.....I went t the Dyno recently before I did a few mods.You cant realy compare the both of them.They are totaly different motors.I hope you can squeeze a little more power from that motor. Ok here is my thinking. all with driver stock supra (320 hp' date='3600lbs) 106.6mph my old z (400 hp, 2550 lbs) 119 mph so 240z (320 hp, 2750 lbs) = supra -850 lbs or ~115 mph I compression checked the car it is fine. I changed the plugs and the car runs amazingly better. No more missfire under high boost. ps notice how the supra is underated...[/quote'] Quote Link to comment Share on other sites More sharing options...
cyrus Posted August 17, 2004 Author Share Posted August 17, 2004 The old 240Z LS1 is 332 RWHP * 20percent drivetrain loss = 400 engine hp Quote Link to comment Share on other sites More sharing options...
LS1240Z Posted August 17, 2004 Share Posted August 17, 2004 Yeh,your right about that.....but what realy counts is what your puttin down to the wheels.Crank HP doesnt realy count unless your driven a dyno with wheels .........Like the Z06 Vetts.The say right on the side of the fender(405HP).....That's at the crank not the wheels.At the wheels it's more like 350HP. The old 240Z LS1 is 332 RWHP * 20percent drivetrain loss = 400 engine hp Quote Link to comment Share on other sites More sharing options...
Guest bastaad525 Posted August 18, 2004 Share Posted August 18, 2004 a bone stock supra TT runs 106mph trap speed? I thought they ran more around 102 or 103? *shrug* anyways, it wasn't my math, I just used the calculator at this page: http://www.geocities.com/motorcity/4601/hpcalc.html Plugged in 2700lbs (cars weight with you in it) and 106.5mph trap speed and got 255rwhp, or about 300hp at the flywheel. If I plug in 3600lbs for the supra TT with driver, the calc says it would take 339rwhp (like 400 flywheel hp) to get that same trap speed! Hell even if I plug in 101 I get way more hp at the wheels than a stock TT is rated for... you SURE that supra weighed 3600 with driver? I know they are heavy but.... Ah well... maybe the calculator is not as accurate as I'd like But I can say from comparison, you're still definately not coming 120hp short of stock. Again, 120hp short would mean like 170hp to the wheels... My old N/A motor made exactly that in my 240, and didn't get anywhere near 106mph trap speed when I ran it, more like 95mph. Even my turbo now, with 210hp to the wheels, at best might run 101mph, at least, that is what I've seen run by comparable setups. Quote Link to comment Share on other sites More sharing options...
cyrus Posted August 18, 2004 Author Share Posted August 18, 2004 http://i-supra.com/eve/ubb.x?a=tpc&s=154607117&f=9126041111&m=5916082111 Quote Link to comment Share on other sites More sharing options...
Guest bastaad525 Posted August 18, 2004 Share Posted August 18, 2004 interesting.... stock supra must put down more power than it's rated for then... that's a pretty big discrepancy. Quote Link to comment Share on other sites More sharing options...
cyrus Posted August 19, 2004 Author Share Posted August 19, 2004 So the plugs helped, but the engine seems off. I took passengers for a ride and they were not scared out of their mind so something is amiss. I will be going to dyno spot in san jose soon (within 7 days) to see what the power is and may be tune it. I wonder if my pipes are leaking boost? Who beads aluminum tubing in SJ? 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.