SRT-4 vs. Vette C5
Originally posted by Steve Y
Average stock C5 6-speed hardtop runs low 13s at 110ish. Average SRT-4 Stage 1 runs high 13s at 103ish. A lot more of a difference than .3 and 4 mph.
Average stock C5 6-speed hardtop runs low 13s at 110ish. Average SRT-4 Stage 1 runs high 13s at 103ish. A lot more of a difference than .3 and 4 mph.
The AVERAGE C5 does not trap 110. I don't know what planet you're getting that number by, but I'm going by the C5's I've actually raced. How many C5's have you run in an SRT-4?
I have raced a few in something much slower than a M6 C5 and I spanked them in my Lightning. Now they are hunting C5's...not the pig auto's with 2.73, but the M6 C5's...**** is getting thick around here.
Originally posted by CANTONRACER
I have raced a few in something much slower than a M6 C5 and I spanked them in my Lightning.
I have raced a few in something much slower than a M6 C5 and I spanked them in my Lightning.
Regarding the **** getting thick, I was referring to a Stage 1 SRT-4 not being that far behind, not a stock SRT-4.
I raced a 2004 SRT-4. He ran a 14.5's@99 vs my 13.90@102. He got it down to 14.1's@99 driving the ***** off it, but I also got my Lightning down to 13.5's@102 the same night just by working on my 60'. Could he have ran better given the track and weather, sure, but so would my Lightning.
The only thing a SRT-4 being stock could even hope for is we start from 120 MPH or faster.
You would need a Stage I to stay with my Lightning. But I think it would only be fair that I "Stage I" my Lightning then..if there is such a thing...
The only thing a SRT-4 being stock could even hope for is we start from 120 MPH or faster.
You would need a Stage I to stay with my Lightning. But I think it would only be fair that I "Stage I" my Lightning then..if there is such a thing...
I've been at the track on nights where L's were running 13.6@102. I was going 13.9@101. 14.1@99 is not driving the ***** off of an SRT-4. Even the clowns at Car and Driver went. 13.8@102, faster than myself.
Every L I've raced from a roll is pretty much dead even, with me pulling away eventually as aerodynamics favor me.
Every L I've raced from a roll is pretty much dead even, with me pulling away eventually as aerodynamics favor me.
Do you go 13.9@101 every night? Weather has no effect on you? Traction has no effect on you?
For all you know, this guys might run a 13.7@102 at your track. To assume that he was not driving his car to full potential is an assumption that you have no way of proving. Way to many variables just to see a ET/MPH and make that call. For all you know, my Lightning might run a 13.2@104 at your track?
For all you know, this guys might run a 13.7@102 at your track. To assume that he was not driving his car to full potential is an assumption that you have no way of proving. Way to many variables just to see a ET/MPH and make that call. For all you know, my Lightning might run a 13.2@104 at your track?
Originally posted by CANTONRACER
Weather has no effect on you?
Weather has no effect on you?
And yes, I do go 13.9 pretty much every night I'm at the track. Not on every run (I may botch a launch here and there, I'm certainly not perfect), but many I do.
Originally posted by CANTONRACER
The only thing a SRT-4 being stock could even hope for is we start from 120 MPH or faster.
The only thing a SRT-4 being stock could even hope for is we start from 120 MPH or faster.
First one on the h-way, dont know which year it was though, went around him pretty easy and I he had a surprised look on his face. I chalk beating him so easy on driver.
Let me start off by saying that I know absolutely nothing about the srt4. With that said, your post I'm quoting is completely the opposite of how a turbo car responds to weather. In the winter, the cold air cools your intercooler much better than hot summer air. In the winter time, my Z has a hard time staying below 18 psi even with the boost controller set to 15 psi. In the summer, I'm hard pressed to hit 18 psi no matter the boost controller setting. I simply can't understand how you gain boost in the summer?? It's unheard of. In 82 degree heat my car made 322 rwhp. In 57 degrees, it made 341 rwhp. I don't see anyway that PCM tuning can make your intercooler as efficient in 90 degree weather as it is in 40 degree weather? What am I missing?
I'm not calling bs on you or anything stupid like that, but I've owned 2 sc'd vettes, 2 twin turbo supras, 2 turbo z's, a 99 L, and a sc'd frontier....so I have lot's of experience with forced induction....and everything I've experienced is the exact opposite of what you said.
Jason
I'm not calling bs on you or anything stupid like that, but I've owned 2 sc'd vettes, 2 twin turbo supras, 2 turbo z's, a 99 L, and a sc'd frontier....so I have lot's of experience with forced induction....and everything I've experienced is the exact opposite of what you said.
Jason
Originally posted by Big Red Jim
Pretty much, yeah. The PCM adjusts its tune based on weather. I see anywhere from 3-4 psi more in the summer than in winter. The car is designed to make the same power regardless of ambient temps. Therefore, I can eliminate that variable. The only major one left is the driver. And I can state that he was not driving it to his potential with a fairly high degree of confidence.
And yes, I do go 13.9 pretty much every night I'm at the track. Not on every run (I may botch a launch here and there, I'm certainly not perfect), but many I do.
Pretty much, yeah. The PCM adjusts its tune based on weather. I see anywhere from 3-4 psi more in the summer than in winter. The car is designed to make the same power regardless of ambient temps. Therefore, I can eliminate that variable. The only major one left is the driver. And I can state that he was not driving it to his potential with a fairly high degree of confidence.
And yes, I do go 13.9 pretty much every night I'm at the track. Not on every run (I may botch a launch here and there, I'm certainly not perfect), but many I do.
Last edited by yellavette; May 5, 2004 at 04:20 PM.
Originally posted by yellavette
Let me start off by saying that I know absolutely nothing about the srt4.
Let me start off by saying that I know absolutely nothing about the srt4.
Sound backwards? Yeah, because my Mustang gains boost as it gets colder too. But my Mustang does not have a PCM controlling boost levels like the SRT-4 does.
P.S. - the stock intercooler will support over 450whp, so the efficiency doesn't really change anything at stock power levels.
Originally posted by Big Red Jim
And that's why everything following this sentance here does not apply. Like I said, the PCM adjusts the tune for the weather. Hot and sticky? The PCM gives you more boost, to make the same level of power that it would with cooler, more dense air. Cold outside? PCM limits boost. In winter I see spikes of 12-13 psi at the most. In the summer, I see spikes to 17psi.
Sound backwards? Yeah, because my Mustang gains boost as it gets colder too. But my Mustang does not have a PCM controlling boost levels like the SRT-4 does.
P.S. - the stock intercooler will support over 450whp, so the efficiency doesn't really change anything at stock power levels.
And that's why everything following this sentance here does not apply. Like I said, the PCM adjusts the tune for the weather. Hot and sticky? The PCM gives you more boost, to make the same level of power that it would with cooler, more dense air. Cold outside? PCM limits boost. In winter I see spikes of 12-13 psi at the most. In the summer, I see spikes to 17psi.
Sound backwards? Yeah, because my Mustang gains boost as it gets colder too. But my Mustang does not have a PCM controlling boost levels like the SRT-4 does.
P.S. - the stock intercooler will support over 450whp, so the efficiency doesn't really change anything at stock power levels.
I don't think I worded the intercooler thing right. What I was getting at is that 40 degree air is going to cool your IC much better than 90 degree air and, in turn, make more power regardless of the size, volume or efficiency of your IC.
Jason


