dyno results
dyno results Well my car is still strapped to the dyno tonight, it wouldnt go over 6000 rpm withouth breaking up, and the a/f leaning out, and something with the avalable fuel going wrong. I have the tsp 233/239 cam on a 112 LSA and they looked at me like i commited a crime. There running the same type of cam on like 116-118 lsa's and to me, based on every cam maker on the market of that size, that thats odd. I meen the MS4 one of the most powerful cams on the market is 110. Anyway they told me with my big duration and lift (.598/.603) thats i needed new injectors, so i bought them after much hesitation and i still dont know if i made the right choice...( imput would be appreciated), It made 332 h/p on a so called spike at 5900 rpm, while the car was breaking up and the a/f was leaning out. They say its an ignition problem, so im gunna check the plugs for cracks. And they bashed my msd superconductor wires... idk how MSD could ever be bashed. IDK im pissed off.... sorry for the rant
LOL, I am in your same position. I just ordered my injectors from speed inc. We probably both made the wrong choice. Either both of our injectors are REALLY dirty or have malfunctioned or its in the tuning. I made 331 rwhp. I have a 230/230 .591/.591, 4000 stall, 241 heads and 4.11 gears. You could clearly see on my dyno sheet where it broke up. Mine broke up at 5000 and leveled off. At 3000 rpm the injectors were over 100% duty cycle. I should be finishing my tune off thursday. The stock injectors should be good for around 500 hp.
Did you make sure that you had sufficient fuel pressure during the pull? I had 58 psi at idle and 54-55 over 3000 rpm on the dyno pull. Let me know how yours turns out
Did you make sure that you had sufficient fuel pressure during the pull? I had 58 psi at idle and 54-55 over 3000 rpm on the dyno pull. Let me know how yours turns out
Mines aftermarket... they said to change the filter too, i cant imagine the pump just going bad just 3 months ago i was runnin stock numbers with my 95,000 miled stock car, ill check all that stuff, but i know that that cam sould be makin more power, like it will but he said it looks as if its goin to 350 h/p... i cant imagine that big of a cam only makin 350... its dyno proven to make more. Im so aggrivated... i will keep up thoo...
Launching!
Joined: Nov 2005
Posts: 286
Likes: 1
From: Arlington, TX
i would check fuel filter and pump preasure and pump consistancy. some times as the engine revs and the pump is going the preasure will fall off. so make sure you make a pull with a preasure gauge while on the dyno so you can watch the guage. as far as the 112 there is nothing wrong with that.
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Verdad Gallardo Get rid of the aftermarket MAF. They mess up your fueling/AFR.
The other guy: was it a stock MAF just as the one you replaced or an 85mm Zo6 replacing a 75mmm stock oem fbody MAF.
If the place you took it to for the dyno run tuned it then you need to take it somewhere else.
Neither of ya should be out of injector either. The 30#'s are fine and your stock ones should be fine as well. Your not breaking 450hp.
The other guy: was it a stock MAF just as the one you replaced or an 85mm Zo6 replacing a 75mmm stock oem fbody MAF.
If the place you took it to for the dyno run tuned it then you need to take it somewhere else.
Neither of ya should be out of injector either. The 30#'s are fine and your stock ones should be fine as well. Your not breaking 450hp.
I do realize the injector issue and I said the same thing. I have just an oem MAF. The nearest reputable place to me is Jacksonville. WAY to far. If they do not fix the problem on thursday then I will ask for a partial refund. I'm moving to VA next week so I have to get this back home. nasty t/a in Hampton Roads has a good tuner, so IF I have to, I'll shell out the money. Maybe he does payment plans 
The weird thing is, they have tuned many ls1's. Maybe mine really are just done for.
The weird thing is, they have tuned many ls1's. Maybe mine really are just done for. same with me, idk bout that injector **** im pissed, i just want it to run, and then if it dnt make a number ill get pissed, 112 was fine to me too all of the other lsa's would sound stock... alot of people have that lsa. I might call tsp bout that injector issue, im pissed that its breakin up thoo i hope its a plug i rele do
Originally Posted by 98Camarod
My injectors were at 146% duty cycle at 5000 rpm. That is were mine leveled off
Originally Posted by slow trap
something is way out of kelter on your ride dude if your idc is 146 % at that power level. as to the original poster that cam with a locked vert (should) be in the 375 - 385 range i would think.check your wires for resistance with an ohm meter.
Originally Posted by vettenuts
What valve springs are you running? Did you check the wipe pattern on the rockers? How much lifter preload are you running? Did you measure pushrod length?
This probably isn't it but I'll post anyway. The first dyno pull on my car sounded OK until it hit some high RPM then sounded like crap. Turns out my car was top speed limited to 118mph. 
Speed limiter is now set at 250mph.
Speed limiter is now set at 250mph.