DeltaT

iTrader: (5)

Something else in your setup is holding you back. I'd focus on intake and exhaust restrictions and boost control & leaks. You need to check everything, assume nothing is good until checked.

Jim

SD99TA214

iTrader: (27)

ive done that, me and my friend know this car so effin good that im ready not to know it

Its had numerous exaust combos of the down pipe numerous cold side piping sizes and arrangments and boost is steady and clean.


What im looking at is what can be holding me back 200 HP, theres a guy who just posted up a stock ls1 or ls6 block with heads cam and supercharger making 685 on 8 psi wtf?!!!


Sorry just venting.

now im running a 3 " to 4" off the down pipe with 4 inch all the way out with straight through magnaflows for exaust.


Im really leaning towards cam guys.

Pro Stock John

iTrader: (34)

What rpm did it pull clean to?

engineermike

5 deg of overlap isn't killing 200 hp. In fact, if you reduce overlap, I dare say that you would lose power. Change the cam if you want, but it'll be a waste of money.

SD99TA214

iTrader: (27)

On a few pills i took it 6700 and it did fine but it stopped making power before that so i didnt take it any further then i needed to.

Ya i really want to believe you guys because you guys have been there and i havnt so i sticking it out.

heres my graph. the torque was acting up some times and since the dynojet reads off spark for torque you i couldnt print any horsepower pulls in engine speed so you can only see what it was doing in vehical speed but youll get the idea.

Maybe , my turbo is too small????? i know a 70mm is good for decent power
but have you guys ever seen a masterpower 70? its really small on the outside with a 70mm inlet. my friends "PT-50 trim" on his neon is the same physical size as mine.


I saw a gt-42 today and was like holy shiiiii. and its only a 72! anyway
look at my graph and get a good laugh at my big bad 6.0 turbod cammed and ported heads and all.

Zombie

iTrader: (2)

Graph looks pretty good to me, I don't see any major issues.

A T76 would give you a nice improvement, but is smallish for 370 cubes. Depends on what you are after.

SD99TA214

iTrader: (27)

SMALL! damn

So then a MP-70 is REALLY small then in your opinion?!

Im not turbo specialist, i mea i know how they work but im not a good judge of size and efficiency.

i cant grasp the concept of how big or small a turbo is for a car.
HOw can you8 tell if the turbos to small? symptoms?

I want to be FAST, and power is a must. and also i just want my car to make exceptable power for the combo. im no dyno queen but when a stock procharged camaro can put down 580 on the same dyno with 8 psi, i look at my numbers and im like

blue00ZZleeper

iTrader: (5)

hahaha refering to my punk *** car sam? lol

Chris

SD99TA214

iTrader: (27)

chris? D1SC chris from socal????? if so yes you hahaha!

blue00ZZleeper

iTrader: (5)

yes sir...I finally started posting on here lol...I've been stalking for years though...I'm changing my clutch and trans today...monster stage 4

SD99TA214

iTrader: (27)

sweet!


well hell my car may not be making the numbers id like but im still hanging in there at the track. Ran a 7.35 at 96mph tonight with a 1.70 off the footbrake and 11 psi.

At barona.

I think my turbo is to small. i might just go to a different kit and turbo all together

98Z28CobraKiller

iTrader: (17)

According to that last dyno sheet, the car stopped pulling at 104MPH which I am guessing is not a very high RPM. You need that information.

SD99TA214

iTrader: (27)

good ovservation, well probably dyno it again today now that the dyno is working properly.

I want to believe it peak hp somewhere around 5500 but only dropped 15 or hp by 6800.

i dint really like posting the speed graph because it doesnt give a good representation of what the motor did rpm wise. That graph would tell a better visual story.

by the way dont know if i said this before but i do have my waste gate bieng dumped back into the exaust, but its with 2 inch exaust pipe and it merges well at an angle..
just throwing that out there.

BLOWNBLUEZ06

iTrader: (17)

Are you scanning the car while making your dyno pulls to make sure you're getting your commanded timing? There are a few tables that will yank out timing. Burst knock (Delta cylinder air). IAT vs Spark, ECT vs Spark.

SD99TA214

iTrader: (27)

yes, every once and a while ill get a degree pulled out here and there , why , i dont know but nothing crazy.

I was scanning through a 5.0 magazune today and they had a 347 ci street car with aluminum heads, nothing crazy, it made 700 with a 88mm and 18 psi.


And im running a small 70mm on a 364.

camarokid94

iTrader: (2)

maybe check into a S480 on a 1.32 AR have to be a little better for the 6.0 plus in not 100% but i think the log kit you have is known for not making high HP as all the exhaust is dumped into that one pipe and it just cant flow enough to make the big number.... once again in not completly sure just thought i heard that once. good luck

SD99TA214

iTrader: (27)

I have benn wondering about this. Im also plagued with this enabilty to keep the turbo flange and cross over pipe from blowing gaskets/silicone (tried everything) seems that after i seal it up it takes about 5 or so good pulls to start the leaks again. Backpressure?

Id love to hear some solid numbers and info on cars that were running the QMP/TTI kits.

engineermike

I have a log setup and it works fine.

camarokid94

iTrader: (2)

what kinda power ya makin?

camarokid94

iTrader: (2)

id say the 6.0 mpt70 log setup and making tons of Backpressure might wana put a guage on it to verify