It has finally arrived. Thank you Comptech!!
08-21-2003, 12:44 PM
#72
Registered User
Thread Starter
Join Date: May 2001
Location: Goodyear, AZ
Posts: 541
Likes: 0
Received 0 Likes
on
0 Posts
I'm getting it welded next week. I had it on my car before the aftercooler, but now i just need to weld a new flange on to a new heat exchanger piece. Is that the print from Comptech? It looks like u'r doing 304.2 to the wheel? Thats awesome. What do u have on u'r car again? I think i'm gonna pull the V-AFC outta the MAP stuff and then let comptech tune my car this time.
08-21-2003, 01:17 PM
#73
Registered User
The only other mod I've done that would affect the HP output would be the flywheel and two lightweight pulleys (same diameter as stock). That'd acct. for, what--maybe ~3 hp tops?
I think that Comptech's dyno may be a little on the generous side compared to a Dynojet....my car dyno'd at 212 (at a low 8200 RPM) with just a PRM intake and the pulleys. It is an '02, but still, that's pretty generous.
Comptech's heavily modded C&D car dyno'd on the same dyno at 308, though. I could give Dick a call at Dynospot and dyno my car there so we can compare....180 bucks, though???
I think that Comptech's dyno may be a little on the generous side compared to a Dynojet....my car dyno'd at 212 (at a low 8200 RPM) with just a PRM intake and the pulleys. It is an '02, but still, that's pretty generous.
Comptech's heavily modded C&D car dyno'd on the same dyno at 308, though. I could give Dick a call at Dynospot and dyno my car there so we can compare....180 bucks, though???
08-26-2003, 10:29 PM
#75
Registered User
Join Date: Jun 2002
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by JRSC_Si
This is a common misconception. The higher the flow rate of the pump, the better any AW IC works. I've seen efficiency graphs from serveral manufacturers, and every one shows higher cooling rates are proportional to a higher fluid flow rate.
This is a common misconception. The higher the flow rate of the pump, the better any AW IC works. I've seen efficiency graphs from serveral manufacturers, and every one shows higher cooling rates are proportional to a higher fluid flow rate.
1. Yes, you want the highest flow rate possible (as well as some pressure) through the charge air exchanger. This will remove the most amount of heat from the charge air. The more water passing through to pull heat energy out, the better!!
2. On the water cooler side, you want the LOWEST flow rate possible as to allow the water to cool back down. More ambient air cooling in contact with each water molecule for the longest period of time possible.
This is where the compromise is...as with anything it is a balance.
Have fun!!
08-26-2003, 11:00 PM
#77
Registered User
Join Date: Jun 2002
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by JRSC_Si
..... I don't think you'll ever see a professional race car on a track (not a 1/4 mile) using an air to water IC. It would be almost usless after a few WOT laps. The water would be too hot to do much cooling with.
..... I don't think you'll ever see a professional race car on a track (not a 1/4 mile) using an air to water IC. It would be almost usless after a few WOT laps. The water would be too hot to do much cooling with.
Apparently you have not followed PD Cunninghams success in Speedvision WC GT racing. He has been using a Vortech supercharged NSX with, get this, ...an air/water charge cooler!! He had been winning enough races in the past two seasons that SCCA kept slapping him with weight additions and boost restrictions. I have seen the car in person and it has a well engineered and properly executed air/water cooleing system.
Some of the points that you make are valid, but only with a poorly designed air/water cooler system. When properly done, air/water achieves excellent results. Water is 9 times more effective at removing heat than air is. That is a key item that allows it to work so well. That is also why you do not need the circulating water to be as cool as the air to remove large amounts of heat. Why do you think that many of the OEM's are moving to air/water coolers for their applications (Maybach, Mercedes, Rolls/Bentley, Ford, Jaguar and others) it is certainly NOT because they are cheaper and perform poorly!!!
Air/air has its merits (low cost being one), but air water has many strong points that make it superior in many applications.
I have been entertained by some of the content in your posts (..you need ice...etc.)...reminds me of some of the print ads (ie; propaganda) I have seen from ATI Procharger. You don't work for them....do you? Funny stuff!!
Take care!!
Thread
Thread Starter
Forum
Replies
Last Post
duff0000
Forced Induction For Sale
2
08-18-2012 09:04 PM