IAT - Pre/Post Thermoblock
#1
Safety Car
Thread Starter
IAT - Pre/Post Thermoblock
I did some analysis this morning on IAT temps under different conditions. Summary is as follows:
Outside temps were cool today : 65F
IAT @ Idle : 113F
IAT absolute high : 115F (stoplight)
IAT absolute low : 97F flooring in 4th gear for a few seconds
IAT range normal driving : 100-111F
Now, I'll install the Thermoblock spacers and see what difference that makes in the temperatures. I'll try to do this today so that it will be better data.
Outside temps were cool today : 65F
IAT @ Idle : 113F
IAT absolute high : 115F (stoplight)
IAT absolute low : 97F flooring in 4th gear for a few seconds
IAT range normal driving : 100-111F
Now, I'll install the Thermoblock spacers and see what difference that makes in the temperatures. I'll try to do this today so that it will be better data.
#3
Safety Car
Thread Starter
Well, I did the install. It was relatively easy and no hiccups.
Results with the Thermoblock Spacers (TB and Intake Manifold).
IAT @ Idle : 102F
IAT absolute high : 106F (long idle @ stoplight)
IAT absolute low : 86F flooring in 4th gear for a few seconds
IAT range normal driving : 89-99F
So, under all conditions (except a long idle where there is an extra amount of heat-soak) the IAT drop is at least 10F. I'd say my estimates are slightly on
the conservative side. A NA car would see a bigger temperature drop, IMO.
Keep in mind that I am measuring IAT using the OBD-II scan tool via the stock sensor.
In summary I'd recommend this product for the price!![Thumbs Up](https://acurazine.com/forums/images/smilies/thumbsup.gif)
Link: http://www.outlawengineering.com/index.html
Results with the Thermoblock Spacers (TB and Intake Manifold).
IAT @ Idle : 102F
IAT absolute high : 106F (long idle @ stoplight)
IAT absolute low : 86F flooring in 4th gear for a few seconds
IAT range normal driving : 89-99F
So, under all conditions (except a long idle where there is an extra amount of heat-soak) the IAT drop is at least 10F. I'd say my estimates are slightly on
the conservative side. A NA car would see a bigger temperature drop, IMO.
Keep in mind that I am measuring IAT using the OBD-II scan tool via the stock sensor.
In summary I'd recommend this product for the price!
![Thumbs Up](https://acurazine.com/forums/images/smilies/thumbsup.gif)
Link: http://www.outlawengineering.com/index.html
#7
Three Wheelin'
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Originally Posted by allmotor_2000
Well, I did the install. It was relatively easy and no hiccups.
Results with the Thermoblock Spacers (TB and Intake Manifold).
IAT @ Idle : 102F
IAT absolute high : 106F (long idle @ stoplight)
IAT absolute low : 86F flooring in 4th gear for a few seconds
IAT range normal driving : 89-99F
So, under all conditions (except a long idle where there is an extra amount of heat-soak) the IAT drop is at least 10F. I'd say my estimates are slightly on
the conservative side. A NA car would see a bigger temperature drop, IMO.
Keep in mind that I am measuring IAT using the OBD-II scan tool via the stock sensor.
In summary I'd recommend this product for the price!![Thumbs Up](https://acurazine.com/forums/images/smilies/thumbsup.gif)
Link: http://www.outlawengineering.com/index.html
Results with the Thermoblock Spacers (TB and Intake Manifold).
IAT @ Idle : 102F
IAT absolute high : 106F (long idle @ stoplight)
IAT absolute low : 86F flooring in 4th gear for a few seconds
IAT range normal driving : 89-99F
So, under all conditions (except a long idle where there is an extra amount of heat-soak) the IAT drop is at least 10F. I'd say my estimates are slightly on
the conservative side. A NA car would see a bigger temperature drop, IMO.
Keep in mind that I am measuring IAT using the OBD-II scan tool via the stock sensor.
In summary I'd recommend this product for the price!
![Thumbs Up](https://acurazine.com/forums/images/smilies/thumbsup.gif)
Link: http://www.outlawengineering.com/index.html
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#8
Instructor
Originally Posted by ThinJim
I'd like to see what the temps are when the outside temp is in the 90 range, summer driving, when everything is well saturated in heat.
Good write up though allmotor
#10
Suzuka Master
So its just a spacer below the intake manifold and behind the throttle body?
You should do a pull on the dyno and see if they make a difference in power. I doubt it would be much, but just curious to see how it would compare to the gains they say it gives you.
You should do a pull on the dyno and see if they make a difference in power. I doubt it would be much, but just curious to see how it would compare to the gains they say it gives you.
#11
Senior Moderator
thanks much, Ram.
![Smile](https://acurazine.com/forums/images/smilies/smile.gif)
#13
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Originally Posted by allmotor_2000
The last few times I hit the track it was in the 90's!!
90 Degrees gave me a 13.7 LOL
I need all the help I can get to beat 12.9
![Wink](https://acurazine.com/forums/images/smilies/wink.gif)
These spacers unfortunately won't work with my application.
#18
Safety Car
Thread Starter
I just came back from dinner - about a 15 mile drive. I parked and popped the hood to feel the manifold. It was barely luke-warm... I'd even venture to say it
was at room temp while the engine was blazingly hot as usual. The Thermoblock certainly isolates the intake manifold from heat transfer!!
I like this...
I suppose for $95 its worth it - but then again I got it for free
Thanks Outlaw Engineering!
was at room temp while the engine was blazingly hot as usual. The Thermoblock certainly isolates the intake manifold from heat transfer!!
I like this...
![Thumbs Up](https://acurazine.com/forums/images/smilies/thumbsup.gif)
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#20
Safety Car
Thread Starter
I e-mailed Outlaw Engineering and said that there might be an interest for a Group Buy. I recommended they register with Acura-CL.com and do the needful. I don't know how much cheaper you are going to get it. The kit is not just two thermal spacers. It also includes two TB gaskets, one special gasket for the intake-manifold and all-new studs, nuts and bolts - the stock ones are not long enough.
#22
Dragging knees in
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For $101 shipped, it might be worth a shot. Looks like I found my next weekend project. ![Big Grin](https://acurazine.com/forums/images/smilies/biggrin.gif)
Thanks for the write-up, Ram. I heard about the company a while back, but wanted an opinion from a fellow forum member.
Any plans on doing a dyno run to see how many horses you've gained from this??
![Big Grin](https://acurazine.com/forums/images/smilies/biggrin.gif)
Thanks for the write-up, Ram. I heard about the company a while back, but wanted an opinion from a fellow forum member.
Any plans on doing a dyno run to see how many horses you've gained from this??
#25
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Originally Posted by mrsteve
Hmmm I wonder if the intake spacer would work with Steve's I/C setup? Probably not.
#27
Originally Posted by shinybluecls
![](http://www.outlawengineering.com/images/hondajdyno2.jpg)
this dyno of a stock tl type s before and after with the spacers. Opinions? You guys think this is accurate? If so....the price is more than worth it imo
![Confused](https://acurazine.com/forums/images/smilies/confused.gif)
Still, that shows almost 10hp gain..in places, for $101...nice.
#28
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Something is WAY off on that dyno. There is NO WAY the torque curve is accurate. And it also appears as if the test vehicle has an IMRC problem. There shouldn't be such a huge drop in horsepower after 5000 rpms. The torque curve starts off WAY too high and also drops off too soon and WAY too much.
Here's my dyno when I was N/A:
![](http://pic7.picturetrail.com/VOL212/1938280/4635287/58398661.jpg)
Now based upon the IAT readings allmotor gathered, these spacers do exactly what they are supposed to, although I wouldn't trust that dyno. It does not appear to be from an Acura CL-S. It also stops well before 7000 rpm. The J32A2 is rated at 222 ft-lbs of torque, yet this car is making 220 ft-lbs at the WHEELS.
Here's my dyno when I was N/A:
![](http://pic7.picturetrail.com/VOL212/1938280/4635287/58398661.jpg)
Now based upon the IAT readings allmotor gathered, these spacers do exactly what they are supposed to, although I wouldn't trust that dyno. It does not appear to be from an Acura CL-S. It also stops well before 7000 rpm. The J32A2 is rated at 222 ft-lbs of torque, yet this car is making 220 ft-lbs at the WHEELS.
#29
Senior Moderator
Originally Posted by mrsteve
Something is WAY off on that dyno. There is NO WAY the torque curve is accurate. And it also appears as if the test vehicle has an IMRC problem. There shouldn't be such a huge drop in horsepower after 5000 rpms. The torque curve starts off WAY too high and also drops off too soon and WAY too much.
Here's my dyno when I was N/A:
![](http://pic7.picturetrail.com/VOL212/1938280/4635287/58398661.jpg)
Now based upon the IAT readings allmotor gathered, these spacers do exactly what they are supposed to, although I wouldn't trust that dyno. It does not appear to be from an Acura CL-S. It also stops well before 7000 rpm. The J32A2 is rated at 222 ft-lbs of torque, yet this car is making 220 ft-lbs at the WHEELS.
Here's my dyno when I was N/A:
![](http://pic7.picturetrail.com/VOL212/1938280/4635287/58398661.jpg)
Now based upon the IAT readings allmotor gathered, these spacers do exactly what they are supposed to, although I wouldn't trust that dyno. It does not appear to be from an Acura CL-S. It also stops well before 7000 rpm. The J32A2 is rated at 222 ft-lbs of torque, yet this car is making 220 ft-lbs at the WHEELS.
#31
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The Outlaw dyno shows the car making 130whp at 3500 rpm. My modified CL-S only shows 120whp. At 4500 the Outlaw dyno shows the car making 180whp, my car is only making a little over 150whp. The Outlaw dyno shows peak whp at 5000 rpms. We all know our cars don't make peak power until closer to 7000.
Guys who plan on buying this mod, base your performance increase on allmotor's IAT readings and NOT on the Outlaw dyno.
Guys who plan on buying this mod, base your performance increase on allmotor's IAT readings and NOT on the Outlaw dyno.
#33
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Originally Posted by typeR
btw 4800 ish is when the vtec change over occurs or is supposed to occur it looks as if this car is having a problem there...perhaps low oil
Are you refering to the dyno I posted or the Outlaw dyno? My dyno is only for comparison of what a J32A2 dyno should look like and as you can see, the two are very different.
I'm assuming the dyno I posted because of the eratic curve around 4800 rpm. No idea why that occured. No oil leaks, nor have I ever had oil level issues.
#34
Safety Car
Thread Starter
I don't trust dyno-plots by any vendor, so just go by true measured data. The spacers certainly make a difference in intake-manifold temperatures. Due to physics, that should translate to a cooler intake charge hence more power.
I don't think Outlaw dyno'd every type of J-series motor. I am pretty sure they dyno'd one J-series (3.5 or 3.2 or whatever) with unknown modifications and are using that plot as a general representation of all J-series.
I don't think Outlaw dyno'd every type of J-series motor. I am pretty sure they dyno'd one J-series (3.5 or 3.2 or whatever) with unknown modifications and are using that plot as a general representation of all J-series.
#35
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Originally Posted by allmotor_2000
I don't trust dyno-plots by any vendor, so just go by true measured data. The spacers certainly make a difference in intake-manifold temperatures. Due to physics, that should translate to a cooler intake charge hence more power.
![Agree](https://acurazine.com/forums/images/smilies/agree.gif)
I don't think Outlaw dyno'd every type of J-series motor. I am pretty sure they dyno'd one J-series (3.5 or 3.2 or whatever) with unknown modifications and are using that plot as a general representation of all J-series.
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#38
Safety Car
Thread Starter
Originally Posted by jipper
would the spacers void any part of the factory warranty?
#39
Senior Moderator
so this is ~ a 2 hour install?
#40
Safety Car
Thread Starter
Originally Posted by mattg
so this is ~ a 2 hour install?
remove your intake, TB and entire intake-manifold for this... so I'd say if the car was hot and you took your time... 2hrs. There are four studs that need replacing and if those are stuck, then you are looking at more time