240 is sick... getting beaten by Hondas!

[Datsun_Man]

Ive got some problems or something. I got beat by a civic hatch with a B18B, non-vtec LS, motor. It was a good car length on me. I also was side by side with a 91 turbo Probe. Am I just smoking crack to think that my mods are good enough to beat these cars? The Probe was 100% bone stock, it has 145 hp and 190 ft.lbs. My 240 has Stillen cams, Injen cold-air extension mounted on the stock plastic tube (for the time being), ignition wires, and a magnaflow muffler. If im correct and that set-up is good for 180 hp, crank, then why am I side by side with a FWD 3000lb (dry weight) Turbo 2.2L Probe!? I was creaping by and after about a 1/4 mile I was maybe a 1/2 car length ahead. I got a sensor that was in the K&N filter hooked up but just sitting outside the pipe where the filter was origionally found before the extension was put on. I have no clue what the sensor does, its not the MAF sensor, maybe a intake air temp sensor? If it is a temp sensor then the 110 degree reading will be making the car run a tad lean cause its getting 80 degree air. Should I kick up the fuel pressure any, I have an adjustable fuel pressure regulator.

[sykikchimp]

I would guess thats more like 170 crank hp.  Thats if the Cams helped A LOT.
ignition wires and CAE on stock tube gave you next to nothing.  the CAE may have gotten about 2hp.  the muffler maybe 3-4hp since its probably still on stock piping.  If you got 10hp from cams, then that's badass.  Realistically I would guess your whp b/w ~135-145.  
Don't feel bad if you are barely beating a turbo probe.  Personally I'd feel pretty good about beating him.  I used to have one.  Those things are fast as shit for what they are..  I could easily beat the newer 6-cyl GT probes.  The 145hp they claim is really closer to WHP than crank.  I've seen a lot of guys dyno their bone stock turbo probes at 140-150hp.  Which means they are probably real close to the same amount of power your putting to the ground.

[MyFirst240SX]

My freinds Stock Turbo Probe has ran a 15.8.

[240sxtreme]

...those cams must really help, cause the muffler(unless you have the piping to go along with it, and the intake filter really won't do much...I'd guess 5hp together.

I believe it was at the first National 240sx meet where they proved that OEM ignition wires make the most HP...of course I believe that car only had I/H/E, maybe ecu, and I doubt it had cams at the time.

unfortunately, our 240's are slower then snails(when it comes to straightline) when they're stock.  I'd suggest throwing on a full intake system, full piping/muffler, and headers. along with your cams, you should be able to hold up better.

I have I/H/E, ecu, pulley, lightened flywheel, and I'm really starting to think that I may not need to go to turbo or sr swap, just throw in some cams, maybe raise the compression, change injectors, swap in a cobra MAF....I'll be good enough...of course, I don't care about highHP...but I'd be happy with 200-210hp.

[rotaryknight]

Unfourtunatly 240sx are slow as crap stock....but the beauty of them is that they take well to modification if you turbo the KA or SR swap with mods.

Also as far as cams go....in all honesty no matter what mods you have if the car is not tuned to what you have sometimes you can make your car slower than it was stock.

People expect to slap on parts and gain HP.  Doesn't work like that with the bigger mods.

[matic 240sx]

well, it happens...  i lost to a civic one time but it turns out he had a prelude motor with mods...  you should go run your car at the track.  

If i was you the next thing i would get would be the full intake and i would get a jim wolf ecu. &nbsp;that will really help. &nbsp;do you still have a cat? &nbsp;run st8 with just a muffler. &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt=':p'>

[Datsun_Man]

Cool thanks for the info. I have had the car a week and im still replacing ricer crap on it. The ram intake comes in a few days and that will make the intake full. Im ordering a header in about a week and I plan to go to a 2.75" pipe from the cat-back and install a resonator, my car is headache and pull me over loud. I got a few parts for sale if anyone wants em:

5" Tach w/ shift light (off my 240)
DTM Style Aluminum Wing (again off my 240)
HKS Universal Muffler with 3" axle back pipe (off my turbo 2.5 RS Subaru)
- Muffler has a 5" tip and comes with a silencer although its not very loud on a turbo car but you will need it for an N/a most likely

MAKE AN OFFER
Email me @ [email protected]

[wherezmytofu]

honda ownz n/a.....time 2 go turbo ...ur lucky it wasnt a b18c1 in there...civic + b18c1 = low 14's high 13 second car......with a stock b18c1 <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/cry.gif" border="0" valign="absmiddle" alt=':cry:'>

[rotaryknight]

If you are planning not to turbo I think you have gone too big on your exhaust piping.

You need some amount of backpressure for street driving in a NA. &nbsp;For a turbo car 3"+ is fine.....

And HKS Hiper are very loud on a Turbo car depending what other mods you have.

[sykikchimp]

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (rotaryknight @ May 24 2002,6:26)</td></tr><tr><td id="QUOTE">If you are planning not to turbo I think you have gone too big on your exhaust piping.

You need some amount of backpressure for street driving in a NA. For a turbo car 3"+ is fine.....

And HKS Hiper are very loud on a Turbo car depending what other mods you have.</td></tr></table><span id='postcolor'>
actually backpressure is bad.. &nbsp;low exhaust velocity is what makes larger diameter piping suck. &nbsp;You reduce piping size to increase Exhaust Gas Velocity. &nbsp;It's a very tough balance to get piping that is big enough to get rid of backpressure, and yet still maintain gas Velocity. &nbsp;I think 60mm is just about perfect.. that's just und 2.5" I think?

[sykikchimp]

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (240sxtreme @ May 24 2002,1:29)</td></tr><tr><td id="QUOTE">I have I/H/E, ecu, pulley, lightened flywheel, and I'm really starting to think that I may not need to go to turbo or sr swap, just throw in some cams, maybe raise the compression, change injectors, swap in a cobra MAF....I'll be good enough...of course, I don't care about highHP...but I'd be happy with 200-210hp.</td></tr></table><span id='postcolor'>
There are Very Few reasons to ever need to upgrade your fuel injectors OR MAF on a N/A 240. &nbsp;If for some reason you need to up fuel pressure an adjustable FPR would do the trick. &nbsp;The only reason you would need to up injector size and MAF is if you started Flowing MUCH more air. &nbsp;In your N/A app, you'd have to have some REALLY wild cams, and probably quite a bit of head work, and manifold work. (porting, poliching, bigger valves, etc..)

Remember.. in a turbo app the stock 240 Fuel system can handle about 4psi. &nbsp;With an fpr you should be able to get 7psi before pushing the injectors too hard. &nbsp;So you'd be hard pressed to come anywhere near the need for that change in Air/fuel consumption with an N/A application. (not to say it is impossible. &nbsp;Cause it's not)

[Coldsun]

honda power? (mr burns) :: "excellent"... &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/sly.gif" border="0" valign="absmiddle" alt=':sly:'>

Well man, basically i'm surprised you kept up with the 91 probe gt.... them shits is pretty quick, especially if you tune them up...

Anyway , take up autocross if you wanna start winning at something.... or swap out that engine for a SR, or turbo your KA... then you'll be doing ok...you would think a stock 240 would be faster but, the truth is , its not.... welll atleast your car is respectable...

ahhh i feel good <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=':)'>
-Sun

[Datsun_Man]

I plan on going turbo in a few months. The car is equipped with 370cc injectors and a fuel pressure regulator. What all will I need for the upgrade, I can think of the following:

Manifold
Turbo
Intercooler
IC Pipes
Blow-Off Valve
Wastegate
Larger Exhaust
Turbo Timer
Boost/EGT Gauge
Boost Controller

Please let me know where I can get these peices cheap!
I can get the BOV off a DSM for 10 bucks or so. Im looking to run about 5-7 psi so the stock ECU should be good right? Would a switch to a JWT ECU benefit the reliability dept.?