Forced Induction Superchargers | Turbochargers | Intercoolers

Do I have an intercooler problem or an air flow problem?

Thread Tools
 
Search this Thread
 
Old May 21, 2017 | 07:08 PM
  #1  
rworcester's Avatar
Thread Starter
Staging Lane
 
Joined: Aug 2016
Posts: 92
Likes: 1
From: Florida
Default Do I have an intercooler problem or an air flow problem?

Here are 2 data logs from various times this year. The first was on the dyno with fans blowing air right into the intercooler, and the second is of a pass in 85 degree heat.

Looking at the 2 IAT graphs, would you say that my intercooler isn't working enough, or that I'm not getting airflow to my intercooler when on the track? It's hard to tell due to the short dyno pull whether or not the IATs would continue to climb, but the IATs at the track are getting to where the car is slower on more boost because of the heat. I have a CX Racing intercooler with a 3" core and run on 93/110 mix at the track. I'd like to avoid buying a meth kit if at all possible, but the Florida heat might say otherwise.

I've also attached a piicture of intercooler placement. We've made back-to-back passes with bumper on and off and no IAT changes were noticed.








5 19 17 run<br/>




The fiberglass bumper has a hole cut in to allow airflow when it is in place
Reply
Old May 21, 2017 | 07:20 PM
  #2  
RealQuick's Avatar
TECH Junkie
iTrader: (14)
 
Joined: Feb 2004
Posts: 3,970
Likes: 15
From: MA
Default

I'd say the IAT'a are too high. Can you make a dummy pipe to replace the IC (so no intercooler) and log IAT's?

Also, your injector duty cycle would worry me.

Meth injection would fix the some of the IAT and injector duty cycle issues.
Reply
Old May 21, 2017 | 07:25 PM
  #3  
rworcester's Avatar
Thread Starter
Staging Lane
 
Joined: Aug 2016
Posts: 92
Likes: 1
From: Florida
Default

We've addressed the injector duty cylce issue on the first log - we had a clogged fuel filter. The dummy pipe is a good idea, I'd also like to data log temp before the intercooler as well as right after.
Reply
Old May 22, 2017 | 06:54 AM
  #4  
Nitroused383's Avatar
9 Second Club
iTrader: (10)
 
Joined: Aug 2008
Posts: 2,817
Likes: 6
From: Washington
Default

That intercooler is junk. My chinabay 24x12x3 core would rise 80 degrees in a pass on only 15 psi. I had a custom a2a built using a quality Garrett core but my car isn't back together to see the results yet. I'm expecting only a 20-30 degree rise on over 20 psi though. To answer your other question, a few second dyno pull isn't going to raise IAT much at all.

Look at the fin density of a garrett
Name:  20170514_171050_zpsoan3legj.jpg
Views: 8150
Size:  209.8 KB

Name:  20170514_171043_zpstm0hpogh.jpg
Views: 8095
Size:  219.7 KB
Reply
Old May 22, 2017 | 07:00 AM
  #5  
JoeNova's Avatar
Restricted User
 
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
Default

Your IATs are less on your dyno pull because you were running less boost and it looks like you barely got into it.

Second graph looks like a much longer pull, so your IATs were going to rise a lot further.
Reply




All times are GMT -5. The time now is 11:21 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE