my first dyno results

[allmotor95pgt]

got my car dynoed in south florida at a place called cartech. the out side temps were about 90 deg.and i had no cool down time, engine was at full temp. my first pass was a whooping 151.1 whp and 142.9 wtq. on my second pass i tryed lowering my fuel pressure from 45 wot to 43 or 44 dont remember, i got 146.4 whp and 140.2 wtq. on the last past i put it back up to like 45.5 and that gave me148.6 whp and 143.6 wtq. im pretty happy with my 151 whp and 142.9 wtq.but i know it could have put out at least 5 or more hp if the motor was cool. so im happy. hey im only 23 whp and 3wtq of from 95probess. he has a ze without the japanese computer and he put out 174whp and 146wtq. i think my numbers are pretty good considering my car has 139 thousand miles on it . ask 95probess he can tell you all about my car he was there at the dyno. :D

[ZiMX3]

If your sig is right then you tied your VRIS open, why don't you let them do what they're supposed to and you might get better torque numbers. You seem to have your exhaust work done, I'd recommend going for a larger TB next to work on better breathing, then a good acid port of the IM.

Did you do the run with the hood open?

[95ProbeSS]

His VRIS were operational during the dyno.


His car was hot though...he had just made a 200 mile drive with no cooling time.

Good #'s.


Get more mods and dyno again :D

[ZiMX3]

Oh...

I thought he meant hot from a drive arond town or maybe 30min to an hour on the highway. With the VRIS though, I thought he tied them open as some people mistakingly do.

Good numbers

[allmotor95pgt]

the hood was open but like 95probess said i had just made a 200 mile trip and had no cooling down time. and about the vris i have to change my sig i confused everone when i put that my vris were now open.when i first put my mods on my sig i did have them tied open and thats when i ran a 15.6 at 90 with a 2.4 60s. so i started to aske people y is my car running so slow (other than the no traction problem). they told me to let the vris do its job so i untied them. then i edited the sig but what i meant to say was vris now closed. i did not realize that i posted it wrong untill know. sorry but i think it would put out more with a good cool down. and then maybe my numbers would look something like this 156whp and 148wtq. a cool run i good for anywere from 2 to 5 hp.

[allmotor95pgt]

ill try to post my dyno sheet but i dont know how to. my car seem to have power al the way to fuel cut, wich in my case was like 7300 rpms and my air fuel was pretty nice to it was in the 13s all the way till like 6400 then it hit the 12s.

[allmotor95pgt]

16.6whp and 11.7wtq over stock is pretty good right. this puts me at 20.3hp and 14.3tq at the fly over stock.add 20.3 and 14.3 to the stock 164hp 160tq and that give me 184.3hp 174.3tq to the motor.(these # are based on a 18%loss)

[LuCKys94probeGT]

nice numbers i also got similiar figures with intake headers and exhaust. i put down 154 and 151 at car tech on the previous dyno i wanna go back i dynoed with 18's a cel and atx ecu probably can do better also fixed a exhaust leak:D

[97pGT]

Originally posted by LuCKys94probeGT
nice numbers i also got similiar figures with intake headers and exhaust. i put down 154 and 151 at car tech on the previous dyno i wanna go back i dynoed with 18's a cel and atx ecu probably can do better also fixed a exhaust leak:D

Heyyyyy i got an idea how about u send me the FPR u owe me ?? !

[allmotor95pgt]

i was wondering y is my tq so low. most of you all put down almost even hp and tq, like for example 154hp 151tq. i know i did the dyno with no cool down ,but still i put out 151hp 143tq thats a diffrence of 8.were could i be loosing tq.what do you all think

[ZiMX3]

could be an improper A/F ratio, if you went to larger rims and thus decreased your torque, could be a number of things.

[allmotor95pgt]

i still have stock rims and tiers, i think maybe its the air fuel like you said. is there anything else that could couse a loss of tq.anyone got other suggestions.i did change my tps voltage to .6 something volts.

[Probe 2C]

So what are you figuring for drivetrain loss?

[95ProbeSS]

Originally posted by Probe 2C
So what are you figuring for drivetrain loss?


By his math, 22%.

[LuCKys94probeGT]

isnt it suppose to be 15 %?

[allmotor95pgt]

I just posted a scan of my dyno. Check my sig for the link.

[hppwdn]

If you figure 18% loss you have to take the final number of 184.3 and multiply it by .18 to get the loss of 33.2hp.

The reason you got 22% was you did it backwards and divided the whp of 151.1 into the 33.2 loss and got 22%.

The proper way to figure out hp at the crank from a whp number form a dyno is to take the whp (151.1) and divide by .82 (100% -18%) because 151.1 is actually 82% of the hp at the crank when factoring a 18% loss due to the drivetrain.

151.1/.82=184.26829

[13699631]

"151.1*.82=184.26829"
What the hell you smokin...you mean 151.1/.82=184.26829

[allmotor95pgt]

yep thats what he meant to say.

[95ProbeSS]

Good #'s either way :D

[SpeedProbe]

Those are some good numbers but your tq is low for your hp....Chris pulled 151tq with the same mods pretty much.

Alan, your tq is a bit low as well (compared to HP) but it could all depend on if you have a CAT, testpipe, if you IM is dirty, bends in the exhaust etc.

[SpeedProbe]

Alan, you ever run the car?

Damn, If I still was in Florida I know I could pull a 14.6 with your car NO PROBLEM (if I was driving hehe)

[allmotor95pgt]

i have no cat i got it cut out and put a pipe in palce. i cleaned my im with some honda cleaner thati had wen i use to work there.and for my disty i have not check the cap and rotor since i bought the car almost a year ago. that could be part of the problem what do you all think. also i have not changed the fuel filter or plug wiers.

[95ProbeSS]

The day i dynod my vris #2 wasnt working so i think that affected the torque a bit.


I ran it once but it was a pretty bad time (spun, bogged...still managed a 93mph trapspeed though)

I raced Nitro (purple probe,ze w/bolt ons) on the highway that night a few times. From a 2nd gear roll I put a few cars on him by the time i was redlining 4th.

The power is definitely there...

[95ProbeSS]

"allmotor95pgt"...I'm gonna be in Orland for Hot Import Nights, you should come.


I wanted to race your buddy's turbo'd neon just for kicks, but i wont be driving my car :(

[LuCKys94probeGT]

why would u wanna race a turbo neon??

[pin]

Originally posted by LuCKys94probeGT
why would u wanna race a turbo neon??

Why the hell not?


How do you figure you'd have seen a peak HP increase of 2 to 5 HP if your engine had been cool? I know how a heat soaked intake manifold makes the car feel sluggish, but by that much I'm not so sure. :shrug:

[95ProbeSS]

My bad....Not Neon but a Turbo Focus :)




Lucky, it wast a fuel pressure hose that came off on your dyno, and it came off after you dynod. I know cause i was the first one to notice it. ;)

[LuCKys94probeGT]

actually it came off during the dyno i have the vid. ask shadome for it or if u have dsl ill send u a copy via aim. it fell off way before the dynos was over. we didnt notice it til after.

[CrimSon_ReD]

Whats the stock HP on probes?

I have 89 Escort GT T3 Turboed that has to be close to 300HP.
But I believe in can be far more.

the reason I asked is because I just bought a 97 GT 2.5
and I wanted to know what I was working with.

[Zimphire]

Originally posted by LuCKys94probeGT
why would u wanna race a turbo neon??

Why wouldn't he?

[95ProbeSS]

Originally posted by CrimSon_ReD
Whats the stock HP on probes?



135-145whp stock usually.

[LuCKys94probeGT]

Originally posted by Zimphire
Why wouldn't he?
cuz he wouldnt win!

[BigProbe]

Arguing about 'Guesstimated Flywheel HP' is pointless. One dyno showed MY Car was Losing FIFTY HP thru the drive train. If I believed it, my NATURALLY ASPIRATED 93 PGT motor was making 208hp with only a CAI and a GReddy.


The amount of drive train loss should be a FIXED number, plus a small percent due to increased heat (Friction).

Miatas lose about 26hp, documented, thru drive train loss. I'm willing to allow that RWD would lose LESS HP than a FWD set up - most of the times. I figure about 30hp...I am NOT sure the same math can be used for TORQUE, however.

By your math, my PGT was making 158.6/.82 =193.4. It's VERY hard to believe the 'estimated' Flywheel numbers when using 18% FIFTEEN Percent seems more realistic, I'd GUESS...but we'll never know until one of us yanks our motor and puts it on an engine dyno.

But here we are again...debating the course of a hand-full of horsepower. :(

[onlyp]

Originally posted by pin
....How do you figure you'd have seen a peak HP increase of 2 to 5 HP if your engine had been cool? I know how a heat soaked intake manifold makes the car feel sluggish, but by that much I'm not so sure. :shrug:

I thought you'd want your engine to be hot like normal operating temp hot. I know IM heat soak is bad. But, with the speed of air going into the motor plus that big arse fan blowing colder air right in front of the engine, shouldn't that kinda help the heat soak thing?

I recently put my car on a dyno. After about 45 mins of Texas's Summer afternoon drive and about 15 mins waiting time, I actually gained 2.1WHP from the first to third pull. They shut down the engine for just a few minuits during each pull. Here's the plot for my 3rd pull (http://pages.sbcglobal.net/onlyp/Probe/Pix/DynoPlot.jpg). And this is the list of my
mod's (http://www.ntpoc.com/onlyp.html) (HS headers just installed before the pulls. I set my FPR at 43psi@idle.

[LuCKys94probeGT]

hey only P what were ur mods for that run ???

[onlyp]

Originally posted by onlyp
.......And this is the list of my
mod's (http://www.ntpoc.com/onlyp.html) .....

That's the list of my mods + HS headers that I just put on a few days before the dyno. The FPR was set at 43psi. If I'm not mistaken, I should be running rich according to the graph. But, when I pull my plugs, they all have white spots on the electrodes. The porcelains look a bit tan tho. What the hell does that mean??? I remember seeing the number from b4tn. He puts 175whp with quite similar mods except that he has ZE IM but no cams. I was quite disappointed with my numbers.

[LuCKys94probeGT]

dam there is something wrong i pulled 156 with intake headers and custom exhaust i also did dyno with 18's and some cells. i recently bought a 65mm tb and fpr i also set it at 43 gonna see what i pull in 2 weeks