My 89 GTU has a bad motor and I was wondering if it would be possible to get the power I need out of a reliable dally driven NA 13b to make it as quick as my friends S2k. I've got a spare S5 motor that i'm starting to disassemble right now and i'm wondering what it would take. I know getting 240hp out of one of these things NA is not trivial, and probably not possible without crazy expensive parts. It's my dally driver so I would not like to kill the low end either. I also have a GTUs 4.3 diff at my disposal. even with a good J port can you get close?



I guess the FC has a small edge on the S2k in weight, but not by much...

carb manifold with, street port, and headers will get you at 200hp(little less or more)

i have no problem modifing the fuel injection system. Is the stock manifold a major restriction?



thanks

yes stock intake manifolds are a major restriction. Kahren has made 200hp with a custom manifold, haltech, fd coils, and stock port motor.

is that crank HP, or wheel HP?

i can run with a stock one at our 1/8 the mile track ( in my n/a) but they are'nt the best for drag racing

I was dead even with my friends S2000 through 3rd gear. Big streetport S5 engine, megasquirt EMS, full exhaust, ported intake manifolds, intake, pulleys, and an 8 lb flywheel. Shifts at 9500 rpm.

Is there any (major) problems with longevity when running that high of an rpm on stock parts?

You dont run those rpm's on stock parts. I did a lot of work to that motor when I built it to make it reliable at those rpm's.



Save your money, get a TII. Its cheaper to go fast with a TII than with a n/a.

Install a v-afc to control your vtec and you should abel to run low 13's.

v-afc's are only 300 bucks.

a stock S5 NA will have trouble with an S2K.

i seriously think you should consider getting a TII instead.

much easier to make fast with less money.



i'm not saying it can't be done, i just think it'd cost a bit more than it's worth. that's just my opinion though.

well, i guess i should preface this with. I have a spare engine to rebuild, and i have a nice car that needs an engine. I would like to make this car my dally driver. I don't really want to get rid of it, and i don't want it to be super fast, just quick. So i guess what i'm asking is, supose i hade a good exhaust and no limitations in the engine management department, what would be the ideal engen build up, for a nice streatable car.

Thanks for the input.

How fast you can make it is going to depend on how much you want to sacrifice you cant have one with out the other. Id reccomend maybe doing a full exhuast, standalone or safc(id do standalone and ditch the stock parts that are getting old, but then tuning becomes a issue), pulleys, and all the other little things. That will give you alright power and still a good running car.

Anything more than a full exhaust, intake, and e-fan is going to start compromising drivability. Some people just deal with the crap, but regardless, it happens. I demand excellent drivability from a daily driver, and I would keep it nearly stock. Trying to get the drivability of my GTU back on par with a stock car has cost me an incredible amount of money, and all I really had to show for it was a quick n/a that couldnt hold its own a full exhaust/intake TII.

how good is the s2k driver?