Intercooler Options
02-22-2009, 03:42 PM
#31
Rennlist Member
I looked up a Bell intercooler at this size and it is around $500. The SFR setup which includes hardpipes looks like it is cost competitive. I am going to mod the end cap on my stock unit first, the SFR unit looks like the next step.
From the Bell site: Size (3.50 22.90 8.00) Airflow (1503 CFM) $495.00 P/N (A350229080)
Has anyone ever done a test to see if the vented panels do any good? I always wondered if it causes a vacuum since it is in a low pressure zone and would pull air out before it gets to the IC. I have read lots of talk but I havn't seem any test results. A couple of pieces of yarn taped to the front would tell alot. Maybe Chris can do some wind tunnels tests.
Found this graph from a post.
https://rennlist.com/forums/944-turb...ted+nose+panel
The numbers on the body relate to the numbers along the horizontal axis in the middle of the preasure chart.
From the Bell site: Size (3.50 22.90 8.00) Airflow (1503 CFM) $495.00 P/N (A350229080)
Has anyone ever done a test to see if the vented panels do any good? I always wondered if it causes a vacuum since it is in a low pressure zone and would pull air out before it gets to the IC. I have read lots of talk but I havn't seem any test results. A couple of pieces of yarn taped to the front would tell alot. Maybe Chris can do some wind tunnels tests.
Found this graph from a post.
https://rennlist.com/forums/944-turb...ted+nose+panel
The numbers on the body relate to the numbers along the horizontal axis in the middle of the preasure chart.
02-22-2009, 08:31 PM
#34
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Tom, I have had experiences with several vendor's IC. First, I think Patrick's guy did one hell of a job, that thing is a monster and I'm sure it flows incredible. And even the one from Aribop's old car is fantastic, kudos to both of these guys. Over the years on RL, there have been a lot of guys on here who made custom ones too. Anyway, here are my experiences and future plans. I had the LR Stage 5 and that custom header panel, and for me, the panel wasn't my taste but the IC flowed a lot. They have data on their site. I then had the LR Stage 2, and it worked great on my old 3.0L 8V too. For my next car, I am going with both the SFR Oil Cooler and Tim's IC. For my application, this set-up will work fine and it will fit very nice right off of the shelf. I happen to like the plug-n-play thing. Just my $.02
02-22-2009, 09:14 PM
#35
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In a couple of weeks, I'll be testing my new intercooler. I will do a before and after, log intake temps and pressure to measure the efficiency and the pressure drop across. The testing will be done on the dyno the same day.
Unless you have the before and after dyno charts with the assocoated data, you cannot make a educated decision. When buying a intercooler, insist on getting this data.
BTW. I have no plan to sell intercoolers, this will be a one off for my personal car. I'll post details as soon as I have something to share.
Unless you have the before and after dyno charts with the assocoated data, you cannot make a educated decision. When buying a intercooler, insist on getting this data.
BTW. I have no plan to sell intercoolers, this will be a one off for my personal car. I'll post details as soon as I have something to share.
02-22-2009, 11:46 PM
#36
Race Director
Sorry Tom, I have like a 1000 messages in there. Just send to my email mate...
For some reason the stock IC is just well really good, its the very first thing 99% of the japanese market do and get good results... I got nothing!
For some reason the stock IC is just well really good, its the very first thing 99% of the japanese market do and get good results... I got nothing!
02-23-2009, 01:25 AM
#37
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Im runnin stock, how necesary do you guys think it is to upgrade?
02-23-2009, 08:46 AM
#39
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I am looking for some data, lots of people have made statements with no testing to back them up. For instance, I could say the reason you didn't gain any HP is BECAUSE of the nose panel vent.
02-23-2009, 09:32 AM
#40
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Another VERY important variable to get the air flowing is the pressure behind the IC, Radiator or Oil Cooler. Creating a low pressure area behind the coolers help greatly.
02-24-2009, 02:52 AM
#41
Race Director
https://rennlist.com/forums/944-turb...t=nz951+vented
page 2 is good.
02-24-2009, 04:29 AM
#42
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I know that when I tested one of my 3L builds with stock i/c on the dyno we got significant heat soak that really diminished the results as each pull progressed. This was prior to my nose vents as well.
My feeling is that a good front mount WITH bigger pipes AND throttle body combined with through ventilation (ie nose venting and hood venting) will reap results.
I have no significant personal data to back that up, but I'm betting it wouldn't take too long to come up with something.
My feeling is that a good front mount WITH bigger pipes AND throttle body combined with through ventilation (ie nose venting and hood venting) will reap results.
I have no significant personal data to back that up, but I'm betting it wouldn't take too long to come up with something.
02-24-2009, 08:05 AM
#43
Nordschleife Master
I don't think a vented nose is in a low pressure area, it's to close to the front.
IMHO the 924 chart confirms this. Plus, I don't think Porsche would have put the 931 vents there if that would be the case
Here's my intercooler:
IMHO the 924 chart confirms this. Plus, I don't think Porsche would have put the 931 vents there if that would be the case
Here's my intercooler:
02-24-2009, 08:06 AM
#44
Nordschleife Master
The 968 turbo rs hood vent is a very good idea but not suitable for non stock type IC-pipes.
I want something like HansB has on his racer, a huge went.
I want something like HansB has on his racer, a huge went.
02-24-2009, 09:16 AM
#45
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Once again, here's the picture of 924 pressure differential chart from factory:
944 is not that different from it's top side, bumper backwards...
944 is not that different from it's top side, bumper backwards...
__________________
Pete
Power. Lots is good, more is better, too much is just right...
'87 951, RIP
'00 996 C2 L92U AQ / IXAA IXRB IX54 M96/7.xx G96/7.88 M030 M375 M376 M436 M476 M601 M983 ... + 991 GT3 brakes, 997 GT3 sway bars, fully monoball'd suspension, Bilstein Cup Car coilovers, do88 Big Pack ICs. 10 & 12 x 19" BBS CH-R wheels with 265/30 & 325 /30 -19 MPSC2s.
Pete
Power. Lots is good, more is better, too much is just right...
'87 951, RIP
'00 996 C2 L92U AQ / IXAA IXRB IX54 M96/7.xx G96/7.88 M030 M375 M376 M436 M476 M601 M983 ... + 991 GT3 brakes, 997 GT3 sway bars, fully monoball'd suspension, Bilstein Cup Car coilovers, do88 Big Pack ICs. 10 & 12 x 19" BBS CH-R wheels with 265/30 & 325 /30 -19 MPSC2s.