Another disappointed result, TR 224
Nah, my buddies SS was tuned stock and it left w/ 13:1, then it lean out for some reason (14:1) within a month and dyno'd 20 less than it did once they got it back to 13:1
Originally Posted by 98NBM_TransAm
Nah, my buddies SS was tuned stock and it left w/ 13:1, then it lean out for some reason (14:1) within a month and dyno'd 20 less than it did once they got it back to 13:1
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From: Barbaria
Change the plugs and wires. I have a 98 with all the usual boltons and a smaller cam. On the first pull after the cam, it did 300hp. I was pissed. After changing the plugs and wires, it jumped to 345hp. This was also with 2 cats in my Y pipe and 1 cat in the intermediate pipe when I had to get the car through emissions before obd2 testing came out. Without the cats, later it did 373hp.
330hp is definitely not ok for those mods and that dyno. Unless you dyno at 5k feet above sea level in a hurricane.
330hp is definitely not ok for those mods and that dyno. Unless you dyno at 5k feet above sea level in a hurricane.
I did plugs and wires about 2 years ago, should i try to do them again? What plugs and wires do you recommend?
Last edited by 98NBM_TransAm; Nov 20, 2005 at 01:51 PM.
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From: Lakeland, FL
Originally Posted by 98NBM_TransAm
I did plugs and wires about 2 years ago, should i try to do them again? What plugs and wires do you recommend?
stockers are good for replacement plug wires, no real sense in spending extra dough on something that works the same, I went through several taylors before I just said screw it and went back to stock. (taylors kept falling apart on me)
Do you have any friends wiht an ls6 intake that they would let you borrow? It definately does not look like you have a valve float issue as your hp is inear but your tq does drop off a bit early for that cam IMO.
Try the ls6 who knows maybe thats it.
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From: Barbaria
Originally Posted by 98NBM_TransAm
I did plugs and wires about 2 years ago, should i try to do them again? What plugs and wires do you recommend?
I change the plugs every summer just to be safe.
Yea valve float was one thing that i wasnt sure of, my springs have about 15k on them so they better not be failing already! I just ordered some wires and i'll get plugs this weekend when my friend works, gotta love discounts! then we'll redyno it maybe sometime next week so we'll see what it does, if it doesnt do much i'm just going to settle until i have the new motor built, its not like i get races in it anyway, scared of the lope, i'll keep you guys posted, thanks for all the help guys, i appreciate it
Originally Posted by kilr12
yeah,that's for everything.I cost me 4k to get 46 rwhp! not right.
98NBM, I hope you get something figured out on this.
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From: Barbaria
Originally Posted by 98NBM_TransAm
Yea valve float was one thing that i wasnt sure of, my springs have about 15k on them so they better not be failing already! I just ordered some wires and i'll get plugs this weekend when my friend works, gotta love discounts! then we'll redyno it maybe sometime next week so we'll see what it does, if it doesnt do much i'm just going to settle until i have the new motor built, its not like i get races in it anyway, scared of the lope, i'll keep you guys posted, thanks for all the help guys, i appreciate it
read his sig, 918s however why did you put 918s on without a cam? Valve springs can go bad after a while. Might want to change them and see if that helps. changed them on my friends car and it definately helped quite a bit.
Originally Posted by JimTA
Wait a second...you're running a 224 with stock springs?
Originally Posted by BrianC98Z28
read his sig, 918s however why did you put 918s on without a cam? Valve springs can go bad after a while. Might want to change them and see if that helps. changed them on my friends car and it definately helped quite a bit.
I just talked to the shop last week and they said that somone had messed w/the dyno and the scales were off (the hp and tq cross) so it should be higher, it goes into dyno wednesday again after i get these plugs and wires in so we'll see where its at, i'll keep you guys posted
Well it went in today and did better, 342/348, the guys at the shop rocked, i guess that the intake and pulley is holding me back pretty good so those seem good to me, i'll get the graph up for anyone who is interested, run conditions were about the same. we figure the cam has timing ground into it hence the lower peak, but power down low so it doesnt seem there is actually anything 'wrong' w/the car, just an older type intake and bigger/heavy pulley. What do you guys think?
Last edited by 98NBM_TransAm; Nov 30, 2005 at 08:52 PM.
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From: The point of no return...
I say something may still be off...all dynos are different too. THe LS6 intake will definitely help you out. I guess you don't need to be too concerned with a motor in the works anyways huh?
Originally Posted by Josh
Do you attribute the gains to the dyno or the plugs and wires?
Josh
Josh
Originally Posted by WS-Sick
I say something may still be off...all dynos are different too. THe LS6 intake will definitely help you out. I guess you don't need to be too concerned with a motor in the works anyways huh?
I'll be checking one more thing before i give up, i was told i could have bent my pushrods from hitting the limiter so many times from crappy tires (i've hit it hard, 6500 limit and banging it)
