Cerser Posted March 10, 2011 Share Posted March 10, 2011 (edited) I'm looking for comparable numbers that take the cash spent on modifying a 280zx and 1/4 mile times in to consideration. I was hoping some of you would know any projects that the authors of which have recorded that sort of thing. I'm looking in to buying a 280zx (with the L28ET, of course), and am considering doing some things like http://www.xenonz31.com/s130/l28et.html outlines, and some of the other projects on this board. I want to see what sort of numbers I'm looking at for a drag car. Thanks for the help. Edit: If you can estimate, go for it. What sort of cash do you think it would take to get x second 1/4 mile times? Edited March 10, 2011 by Cerser Quote Link to comment Share on other sites More sharing options...
roger280zx Posted March 11, 2011 Share Posted March 11, 2011 Welcome to Hybridz! You will find this site very informative, and its members very helpfull, as long as you do your own research. It sounds to me like you are looking for a "best" for the money drag car modifcation list. Around here there is no "best", there is; however, a TON of information on drag racing l28et's both here and on the search engine of your choice. Check Bernard's posts. He has a really quick 280zx auto car. Quote Link to comment Share on other sites More sharing options...
Cerser Posted March 11, 2011 Author Share Posted March 11, 2011 (edited) Welcome to Hybridz! You will find this site very informative, and its members very helpfull, as long as you do your own research. It sounds to me like you are looking for a "best" for the money drag car modifcation list. Around here there is no "best", there is; however, a TON of information on drag racing l28et's both here and on the search engine of your choice. Check Bernard's posts. He has a really quick 280zx auto car. Thanks for the suggestion. I'm just now looking in to the cars and engines, so I'm just trying to find prospective builds at the moment, and see what sort of money it costs to get different times (relatively, of course, this is all really rough estimation). I'll check out the posts, and I'm deep in the middle of my own research at this point. I've found a lot of particular suggestions for certain parts that are like "suggested for greater than x HP" but I haven't really found anything that's specifically for power gain itself. Apologies if this was a crap post, but it's extremely general stuff at this point. Edited March 11, 2011 by Cerser Quote Link to comment Share on other sites More sharing options...
stprasinz Posted March 11, 2011 Share Posted March 11, 2011 (edited) t3t4 turbo, 3" mandrel bent exhaust, intercooler, megasquirt, bigger injectors, cams, porting polishing, forged pistons, limited slip differential, z32 transmission conversion, in just about that order thats just the power train.... lol..... and that has power levels ranging from 400hp and up........ searching is your best bet.. ok as for $ to time estimate... 15's can be factory done (might dip high 14's from a simple boost controller) easy 14's high 13's with little effort add a t3t4(400) 3" exhaust (300) intercooler, and piping (250-300) mid to low 13's maybe high 12's megasquirt(with all the frills ms1 with boost controller built in, all sensors harness ect, 550?) depending engine quality, weight all of that... because these engines on stock block and head have made 400 more than once... then you get into more money.... forged pistons porting polishng and cams probably close to another 2,000 or better but then your set to run enough power to run some hella power if its assembled and tuned correctly.... and well before that there are other things you NEED to attend to.. clutch for one all mounts will need to be up to the task ect, also you need brakes they always help.... ok enough babiling for me... now search.. what are your goals. is this strictly drag? street, autocross, ect.... Edited March 11, 2011 by stprasinz Quote Link to comment Share on other sites More sharing options...
Cerser Posted March 11, 2011 Author Share Posted March 11, 2011 (edited) t3t4 turbo, 3" mandrel bent exhaust, intercooler, megasquirt, bigger injectors, cams, porting polishing, forged pistons, limited slip differential, z32 transmission conversion, in just about that order thats just the power train.... lol..... and that has power levels ranging from 400hp and up........ searching is your best bet.. ok as for $ to time estimate... 15's can be factory done (might dip high 14's from a simple boost controller) easy 14's high 13's with little effort add a t3t4(400) 3" exhaust (300) intercooler, and piping (250-300) mid to low 13's maybe high 12's megasquirt(with all the frills ms1 with boost controller built in, all sensors harness ect, 550?) depending engine quality, weight all of that... because these engines on stock block and head have made 400 more than once... then you get into more money.... forged pistons porting polishng and cams probably close to another 2,000 or better but then your set to run enough power to run some hella power if its assembled and tuned correctly.... and well before that there are other things you NEED to attend to.. clutch for one all mounts will need to be up to the task ect, also you need brakes they always help.... ok enough babiling for me... now search.. what are your goals. is this strictly drag? street, autocross, ect.... Strictly drag, but it needs to be street legal. I'm definitely planning on exhaust first off- the stock exhaust system is awful from what I can tell. Another thing I want to make sure is to keep it's reliability. I don't want to end up pushing any boundaries with reliability that are drastic. Thanks for the writeup, I'll keep it in my notes for this project. The car I'm looking in to has bad brake pads, but I'm replacing the braking system with performance-grade materials regardless. My extremely loose and rough HP estimation would be about, eh, 250-300(max) HP at first. After that I'll deal with the new fuel lines and forged pistons that the extra power will require. Even then, I'm probably going to not hit 340-350 for a very long time considering it could be pretty rough to the stock block. Another thing I want to look in to is the transmission. A 280zx with automatic transmission will make up for power losses through brake-torque launching as well as a shift kit (hell, I may even be able to shift manually considering they're 3 speed), but I need to modify it for it to become viable/reliable. Once I get enough sufficient research down I'll make a thread for the project, post the setup, and see if people will troubleshoot it for me. I'm aiming for initially doing modification to the L28ET that will be taken one step at a time, with a gap of time in between, so I can really get a feel for what each is doing, as well as re cooperate resources. Edited March 11, 2011 by Cerser Quote Link to comment Share on other sites More sharing options...
Bernardd Posted March 11, 2011 Share Posted March 11, 2011 You should decide how fast you want to go before deciding anything. And my car is not fast, it's just very uncommon for someone with an L28 to drag race. Quote Link to comment Share on other sites More sharing options...
Cerser Posted March 11, 2011 Author Share Posted March 11, 2011 You should decide how fast you want to go before deciding anything. And my car is not fast, it's just very uncommon for someone with an L28 to drag race. This is a rough estimate, but somewhere around the neighborhood of 11's? Why is it uncommon for a L28 to drag race? It seems like a pretty damn good platform for it to me. Quote Link to comment Share on other sites More sharing options...
Cerser Posted March 11, 2011 Author Share Posted March 11, 2011 Also, if anyone could help me out with this, is there any easy way to figure out how much brake-torque a drive train can handle without damaging it? I'm curious to get some resources, but I can't find anything. Quote Link to comment Share on other sites More sharing options...
BluDestiny Posted March 11, 2011 Share Posted March 11, 2011 (edited) You can hit about 300hp with a manual boost controller, and intercooler and just up the boost. There are a bunch of writeups on it. Also search big phil. With minor (relative to what you want to do i.e forged internals and stuff) modifications he was running 25psi and closing in on 400hp on a STOCK block. Edited March 11, 2011 by BluDestiny Quote Link to comment Share on other sites More sharing options...
stprasinz Posted March 11, 2011 Share Posted March 11, 2011 I ran 24 psi on a stock rebuild and cams with ported polished heads.. Out of a 60-1 turbo.... ran a whole summer.... so 350 would be easy even on a stock block and pistons... these things are pretty stout.. Its a straight 6 so torque will be plentifull....... with a more efficient turbo intercooler and exhaust you should reliably run over 300..... "reliably" Quote Link to comment Share on other sites More sharing options...
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