JPR S2 heads & TR 224 cam dyno results
#21
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JS- I don't think Joe is questioning the validity of your dyno numbers, he just wants to prove the point about dyno numbers being lower in hotter, more humid conditions- regardless of the correction factor.
And who said anything about dyno tricks being worth 30 RWHP? You are the one throwing around this magical 30 HP number. Joe and I never said 30 HP. You are right about one thing, though- I am VERY HAPPY with my JPR package <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> Joe treats his customers like family- I bet you don't get that personal touch with some of the larger shops.
I am proud of my dyno numbers, sure. I'd be lying if I said I don't care about dyno numbers, but they aren't EVERYTHING. The dyno is a TUNING TOOL, that's all. After all, we don't race on dynos, do we? <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
And who said anything about dyno tricks being worth 30 RWHP? You are the one throwing around this magical 30 HP number. Joe and I never said 30 HP. You are right about one thing, though- I am VERY HAPPY with my JPR package <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> Joe treats his customers like family- I bet you don't get that personal touch with some of the larger shops.
I am proud of my dyno numbers, sure. I'd be lying if I said I don't care about dyno numbers, but they aren't EVERYTHING. The dyno is a TUNING TOOL, that's all. After all, we don't race on dynos, do we? <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
#22
10 Second Club
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I stand corrected,BAD.U never said 30RW....
U did imply that these so called tricks are worth more than they actually are..
Now your implying that because JPR treated u well,like family as u put it,that other shops might not've given u the service that JPR provided.
FWIW,I've had excellent treatment from CARTEK,JFP,TR,JD's,LS1 SPEED,MTI,RAPID,JPR etc...
I say this is an indiviuals opinion..
Nothing more,Nothing less
Lastly I totally agree with u that if its hot when u dyno,the number can suffer,But if u give the car time to cool its not the "sun threw the clouds breakthrew" u are implying.
Good luck Bad.....
JPR does good work and u got good results!!
JS
<small>[ August 14, 2002, 10:53 AM: Message edited by: JS ]</small>
U did imply that these so called tricks are worth more than they actually are..
Now your implying that because JPR treated u well,like family as u put it,that other shops might not've given u the service that JPR provided.
FWIW,I've had excellent treatment from CARTEK,JFP,TR,JD's,LS1 SPEED,MTI,RAPID,JPR etc...
I say this is an indiviuals opinion..
Nothing more,Nothing less
Lastly I totally agree with u that if its hot when u dyno,the number can suffer,But if u give the car time to cool its not the "sun threw the clouds breakthrew" u are implying.
Good luck Bad.....
JPR does good work and u got good results!!
JS
<small>[ August 14, 2002, 10:53 AM: Message edited by: JS ]</small>
#23
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Hey, Joel, I'm not trying to badmouth any of the other board sponsors. I have had great service from MMS, MTI, TR, Tom Byrne, LS1 Motorsports, Scott Jantzer, Fast Toys, Rapid, SLP, and Cartek as well as JPR. In fact, I have only had one negative experience with a board sponsor (who shall remain nameless). I believe our sponsors (JPR in this case) deserve kudos when things go well. Lord knows, they get bashed when things turn sour.
However- how many other sponsors would let you borrow their own car so you don't have to get a rental? How many other sponsors would take you out on the town with their wife and buddies?
So, yeah- I think JPR is a cut above. But that doesn't mean my analysis of my dyno results are biased, if that is what you are implying. I call it the way I see it. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
And although I have had good SERVICE from the other sponsors on the board, their PRODUCTS haven't always delivered as advertised. In this case, JPR's heads have delivered the goods. I have seen plenty of stage 2 heads and cam packages from other sponsors that only ended up delivering 370-390 RWHP and these get explained away with "some cars are stronger than others" or "the tuning must be off." IMO, that is <img border="0" alt="[bullshit]" title="" src="graemlins/gr_bs.gif" /> in many cases. How many low dyno numbers have you seen from JPR packages? I haven't seen any. In fact, some of Joe's fastest cars aren't even on the board. These guys are hardcore street racers and will not post their times or their dyno results.
However- how many other sponsors would let you borrow their own car so you don't have to get a rental? How many other sponsors would take you out on the town with their wife and buddies?
So, yeah- I think JPR is a cut above. But that doesn't mean my analysis of my dyno results are biased, if that is what you are implying. I call it the way I see it. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
And although I have had good SERVICE from the other sponsors on the board, their PRODUCTS haven't always delivered as advertised. In this case, JPR's heads have delivered the goods. I have seen plenty of stage 2 heads and cam packages from other sponsors that only ended up delivering 370-390 RWHP and these get explained away with "some cars are stronger than others" or "the tuning must be off." IMO, that is <img border="0" alt="[bullshit]" title="" src="graemlins/gr_bs.gif" /> in many cases. How many low dyno numbers have you seen from JPR packages? I haven't seen any. In fact, some of Joe's fastest cars aren't even on the board. These guys are hardcore street racers and will not post their times or their dyno results.
#24
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I purchased the 5.3L heads from Flow Technics in Washington State.. I sent them to CNC to have them inspected by them. It ended up costing me almost a grand to repair them. Detonation issues, tweaked valves, etc.. I am still in limbo when it comes to my setup. I have the same exhaust setup as when I dyno'd 390rwhp/380rwtq. Now I have a cutout. Post dyno'ing with the new heads I only dyno'd 402rwhp/388rwtq with 3.42's. I changed gears to 4.10's with no other changes and dyno'd 396rwhp/382rwtq. Today we opened the cutout and I dyno'd 411rwhp/393rwtq. We changed to another ED W. pcm with 29 degrees of timing. My A/F was never right, but even when we got it right today and with Ed W. adding 3 degrees more timing I dyno'd the same 411rwhp. NO KR.. Closed the cutout and I dyno'd 397rwhp/382rwtq. Go figure. After all of that.. Guess what? ED W. sent me a truck pcm. We found that out because of the vin #'s on the pcm kept my air bag light on.. So I put my old pcm back in.. Its just not meant to be.. I am hoping the all might ls1edit can fix my woes.. If it does not.. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />
#25
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Told you would pick up around 15RWHP from the cutout. I dont understand why you dont get a reflashed STOCK PCM and get it LS1 edit tuned on the dyno?
Cheers,
Chris
Cheers,
Chris
#26
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Keep your head up, Vince. You keep getting better in small increments- you are moving in the right direction. Realistically, getting the A/F ratio right could be worth 10-15 HP, or more. 29 degrees of timing with no KR sounds pretty good- do you have pulleys and an LS6 intake? Your numbers aren't bad- the real issue is that you did not pick up much from the heads, correct? The 390 HP was with stock heads, wasn't it? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
#27
Shorty Director
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Chris I am getting ls1edit. My scheduled date is on the 23rd. My fear is I will not pick up any secondary to my luck so far. I have LS6 intake and a pulley. I am not seeing good results from the heads honestly.. If you do the math.. I have picked up more from the cutouts than the heads. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" /> I know, I know.. Change the heads.. I am going with a new setup next year and I am tired of investing in this current setup.
#28
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Vince, I'm sure you have heard this before- but IMO your valves are too big for stock CID, especially with 5.3L heads. Anything more than 2.02 intake/1.57 exhaust is overkill for stock cubes- again, IMHO. From what I have seen the quality of the port work is far more important than what valves are used, anyway. Look at the stock valve S1 setups that outflow and make more power than some S2 setups with larger valves. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
#31
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Thanks, Vince. I agree. Joe and I were talking some about your car and the problems you have had over the weekend. I forget- who did your heads originally? Was it ARE? Didn't you then send them out to someone else to have them reworked? CNC in Florida, maybe? BTW, how on earth did they fit huge valves like yours in 5.3L heads? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />