My shitty dyno chart

[thunderstruck507]

Pisses me off every time I look at it, but posting this now will make me feel a lot better when I get a real tune, ls6 intake, and post up a much better one.

http://img.photobucket.com/albums/v477/thunderstruck507/dyno001.jpg

The red line falling off fast is because I broke the tail housing and let off right before 6k.

There are several other small things I suspect added to my shitty results but I'm not going to make excuses, it is what it is.

[Jet-Lee]

dude, 339/324 ain't bad.

[thunderstruck507]

not bad, but like I said those are the same numbers cars with bolt ons make...for a cammed car its disappointing

it definitely feels awesome on the street though, feels similar to the old motor, maybe even a little less torquey...but once she hits 3k the pull starts and it feels great

a 2-1 downshift will obliterate the tires on a lot of the pavement around here, every now and then it'll dead hook and just yank really hard

I think the best is nailing it from a 50-60 mph roll where it drops from overdrive down to second, 60-100 happens quick but sadly that's as fast as its been so far

[5point_Slow]

do you have a print out of your a/f?

[zerocool5468]

dude, 339/324 ain't bad.

gotta remember she weighs a lot though .

[thunderstruck507]

weight will be 3500 or less now

was 3740 in street trim before (including tools, sub, and 1/2 tank), went to an all aluminum engine with a plastic intake and took out all the a/c

EDIT: fully dressed ls1= 455 lbs, fully dressed 350 with aluminum intake= 540lbs

removed a/c compressor, condenser, and all the junk inside the a/c box...easily over 100lbs so my guess should be pretty accurate

[Triepsyn]

Nice numbers!

[thunderstruck507]

they weren't doing a/f that day

it smells rich to me though

[NWADSM]

very nice numbers i made not much over that n im a boosted car...a better tune should net you better results for sure...did you finally get all the bugs worked out ??

[thunderstruck507]

the small cooling fan is on a temp switch I put in the water pump (drilled and tapped)and sometimes doesn't want to kick on for some reason...I'm can't ever catch it not coming on when I have a meter with me to find out if its the sending unit or the switched 12 volt source

the stock stall hates the cam...tries to power through the brakes since the idle in gear is 1000-1200 rpm, I want a 2800-3200 stall anyway

tranny leaks a bit out of the yolk if the car is on a slope or jacked from the front

my driver side o2 sensor doesn't read, its either been tuned out by accident or the extension harness is bad

other than those its good, which to me is great, I expected many many glitches so I consider myself lucky so far

[NWADSM]

actually lee i did make more power then his N/A car... on a mustang dyno the DSM put down 397 at only 16 psi ;) n pump gas ofcourse...n anyone will tell you im far from a ricer, n i was giving possitive feed back towards his accomplishments....Also on the power to weight comments i know from experiance the DSM's are big n heavy...if i had the power from the DSM in my Integra she would be a freaking bullit....the one main advantage hes got is RWD...even if he does burn the tires up a lil on launch he will have more drive force then a FWD with wheel spin

[Pace]

eventually I would like to see 390 minimum but I might have to go to a more aggressive cam or get heads to do it, I have a set of 5.3 truck heads that if I had my valves put in them would give me 25-30 more rwhp so that might happen one day, I'm just not ever going to spend $1200 plus for 30hp or less like a lot of guys do...I'd rather put on a blower

Do I hear the whine of a Vortech? :P

Seriously man, sorry to hear about the car spilling fluids all over the dyno. Other than a few snags here and here, looks like it's doing well. Awesome work. I look forward to seeing it running right and (mostly) problem-free. :thumbup:

[Jet-Lee]

gotta remember she weighs a lot though .
I didn't say anything relevant to weight.

The engine makes decent power for what it is.

[thunderstruck507]

what the hell happened in here?

anyway in case it was missed: NWADSM, that's badass! Definitely impressive numbers and even more so since its on a Mustang dyno, those things are notorious for being "low" on readings...in fact had my chart been on one of those instead of a dynojet I would be smiling instead of wondering what's wrong

[NWADSM]

what the hell happened in here?

anyway in case it was missed: NWADSM, that's badass! Definitely impressive numbers and even more so since its on a Mustang dyno, those things are notorious for being "low" on readings...in fact had my chart been on one of those instead of a dynojet I would be smiling instead of wondering what's wrong

thanks but lets not take away from your thread....hopefully you can get all the lil kinks worked out .. n you didnt miss much bro just a lil nut swing contest between two forum members...looks like a mod cleaned things up tho

[thunderstruck507]

Well problem #1 was discovered...throttle pedal was bottoming out on carpet and the car was only seeing 92% throttle now that the cable stretched and settled in.

Also started throwing a code for TPS sensor, after plugging and unplugging a couple times and clearing the codes it definitely started running better. The downshifts are more responsive and it seems to pull a hair harder.

[FlatBlack]

Awww...

You put weight #s up for the 350 but no power numbers. What was the stock hp and torque?

[thunderstruck507]

it wasn't stock...didn't put up numbers cause I dunno 100% what they were

car weighed 3860 with me and 1/2 tank and went 9.2@75mph in the 1/8th with a 2.3 60ft

I'd estimate 270-280 rwhp

[BDP]

I havent followed your setup but because of the TPS I suppose you did an EFI swap. I wanted to comment on the temp sensor... Did you figure out if it was functioning properly? Is this sensor in a "closed loop" with the fans or does it go to another computer/device?

Did you happen to have it self or shop wired up to a relay and not some form of "kit", I didnt know if you realize that the temp sensor adjusts its ground output based on Ohms of the two metal conductors at low numbers under probably 400 Ohms. Some relays will not activate the coil unless the ground current exceeds 500 Ohms.

If the Relay states "Resistance/Tolerance =400 Ohms +/-10%" then it might not throw until your water is boiling but you would technically need to see what the sensors specs are first.

Not saying this is the problem but in case you didnt know, usually "medium temp" will read like 200 Ohms on the ford sensors I've played with, when I did my fans I had to boil my temp sensor with a multi meter on it and gator clips to find out what the operating range was to obtain proper relays/circuit.

Sorry I hope that makes since, I just made it to Nebraska and its like 2am. No offense if you knew and if anyone can assist in making this sound simpler, then go for it :D

[FlatBlack]

What generation 350? Stock?

[thunderstruck507]

it was a gen 1, 882 heads that were ported pretty decent, comp 268he cam (.454/.454), hei ignition, headers, edelbrock performer intake, holley 670 street avenger...pretty basic stuff

the fan issue turns out that the engine just doesn't get hot enough...they come on every time it gets over 195, I just didn't realize since they turned on sooner on my 350 because of where the sensor was

its a painless electric fan kit, just has a grounding unit that I tapped into the water pump

[Pace]

Well problem #1 was discovered...throttle pedal was bottoming out on carpet and the car was only seeing 92% throttle now that the cable stretched and settled in.

Also started throwing a code for TPS sensor, after plugging and unplugging a couple times and clearing the codes it definitely started running better. The downshifts are more responsive and it seems to pull a hair harder.

Drive by wire electronic TB > Drive by cable TB. No rerouting the cable or having to deal with it's problems. Just tweak the torque management a bit, and it's all better. :P

Anyway, glad you figured it out. Maybe time for another dyno pull in the near future?

[thunderstruck507]

I just don't like the idea of drive by wire...dumb I know but I'm still old school enough I'd rather have it physically there

[Pace]

Yeah. I do miss being able to mess with the cable under the hood. Although, that was a little more fun because it wasn't a six. Oh well.

Although, apparently GM got tired of the electronic throttle, because I'm pretty sure they went back to the cable setup on some cars.

[thunderstruck507]

Well I tested a theory and found problem #2. The cone air filter I have is too small. Its becoming a decent restriction at WOT. Also seems my WOT timing is low.

I really can't wait to get a decent tune and sort some of this stuff out the right way.

[5point_Slow]

just put a turbo on the end screw a filter!!

[Dragon@Heart]

Hey, NWADSM and Thunderstruck, nice cars guys, would like to check them both out sometime.

[thunderstruck507]

as soon as it warms up I'll start being at sonic nearly every weekend most likely

right now I'm scrounging for a job so I can get this thing properly tuned, found out my injectors are nearly maxed out, which is ridiculous for anything short of 430rwhp

I just saw someone with a cam a hair smaller than mine on the same lobe profile throw down 380rwhp/370rwtq so I have hopes of being a lot better off after the tune, much less the new intake

[FlawleZ]

as soon as it warms up I'll start being at sonic nearly every weekend most likely

right now I'm scrounging for a job so I can get this thing properly tuned, found out my injectors are nearly maxed out, which is ridiculous for anything short of 430rwhp

I just saw someone with a cam a hair smaller than mine on the same lobe profile throw down 380rwhp/370rwtq so I have hopes of being a lot better off after the tune, much less the new intake

What are you running, 42lb injectors?

[Dragon@Heart]

Cant wait till the weather warms a bit more.

[thunderstruck507]

they are stock 28# injectors, but they should be plenty for me until I add heads to the car

my cam is small in comparison to the average ls1 cam these days, but I'm still making less power than bolt on cars

either my injectors are working too hard due to being bad rich or they're just shot, but I won't know until I can afford a good tune with a wideband

[FlawleZ]

they are stock 28# injectors, but they should be plenty for me until I add heads to the car

my cam is small in comparison to the average ls1 cam these days, but I'm still making less power than bolt on cars

either my injectors are working too hard due to being bad rich or they're just shot, but I won't know until I can afford a good tune with a wideband

Yeah you really just need to tune it. You could realize up to 30 rwhp easily from a tune alone. Also, what intake manifold are you running?

[thunderstruck507]

currently its a ls1, I will be getting a ls6 asap, someone I met at sonic sat night is supposed to contact a nice guy in rogers who supposedly has extras I could get for a good price

intake alone will be 15-20hp, if it leans out the tune I currently have some it will be more

if after a tune and intake I don't make at least 370rwhp or run low 12s high 11s something will be changed

[FlawleZ]

currently its a ls1, I will be getting a ls6 asap, someone I met at sonic sat night is supposed to contact a nice guy in rogers who supposedly has extras I could get for a good price

intake alone will be 15-20hp, if it leans out the tune I currently have some it will be more

Okay, what year LS1 intake manifold? Is it pre 01? If so, those are actually quite restrictive. What were your AFR's on the dyno?

[thunderstruck507]

Okay, what year LS1 intake manifold? Is it pre 01? If so, those are actually quite restrictive. What were your AFR's on the dyno?

it was a dyno day, they weren't hooking up widebands so I dunno my a/f that's the problem, I need to find someone who has one

the manifold is a 98, what happened was in 2001-2002 the ls1 cars all got the ls6 corvette intake and a smaller cam...this made the cars still pass emissions but not require EGR equipment

intake also comes on all ls1 GTOs

[FlawleZ]

it was a dyno day, they weren't hooking up widebands so I dunno my a/f that's the problem, I need to find someone who has one

the manifold is a 98, what happened was in 2001-2002 the ls1 cars all got the ls6 corvette intake and a smaller cam...this made the cars still pass emissions but not require EGR equipment

intake also comes on all ls1 GTOs

Right. But the 01+ manifolds flow better obviously. You could grab one on the cheap from someone upgrading to a FAST intake manifold on LS1Tech or plenty of other forums.

[thunderstruck507]

Yeah I've been looking, but "cheap" for them is still $300+ so I haven't had the cash just laying around yet. I just do want to make sure I have one before the tune.