Is there really any benifit of upgrading to a better TMIC?? - Page 5

Tortfeasor STi · 05-26-2006, 08:17 PM

Gwinnet, do you have the dyno graphs? It would be an interesting comparison of power curves between the two. Spool of FMIC vs TMIC, and the area under the curve as well. Peak numbers are nice, but we dont race with peak numbers after all. If the FMIC had a much better total area under the curve due to mid range gains the .3 improvement would bear more scrutiny.

***Majin*** · 05-27-2006, 11:14 AM

^ i believe Scott was comparing the STi TMIC and the TXS TMIC; not a FMIC.

***Horhay*** · 05-27-2006, 11:37 AM

Quote:

Originally Posted by onefranchise

I just bought the auto dynasty tmic on ebay, i beleive surgical tuned me on to it. I had a injen fmic, and sold it to horhay, so I will try to compare them. It should be a good comparosion between the ebay tmic and the injen fmic on a stock turbo. Heres the link to the ebay tmic I bought http://search.stores.ebay.com/AUTO-D...coolerQQsofpZ0.

I know I paid a little more than $1g for the injen fmic, I wonder if this $180 piece will out perform it. If it does that I will wish I still had that $1g and I would turn it into a 20g!!!!

One thing that Ive noticed for sure with the Injen FMIC as compared to the stock TMIC; in the summer the car runs much stronger. This is just driving around. When it got hot and humid here and I had the TMIC installed, I could really tell the car wasn't happy. Now I hardly notice a difference. Granted I am running the Injen CAI which might also help alleviate the losses to heat.

I have no comparisons to aftermarket TMIC but after using this FMIC I will not be going back to a TMIC. Only other IC I am considering is the CBRD Q Mount, if and when it comes out.

My 20G is about 90% installed and my injectors are here, so Im getting ready for a tune. I will definately update with the results when I have them.

zedman86 · 05-27-2006, 05:58 PM

Quote:

Originally Posted by Horhay

One thing that Ive noticed for sure with the Injen FMIC as compared to the stock TMIC; in the summer the car runs much stronger. This is just driving around. When it got hot and humid here and I had the TMIC installed, I could really tell the car wasn't happy. Now I hardly notice a difference. Granted I am running the Injen CAI which might also help alleviate the losses to heat.

I have no comparisons to aftermarket TMIC but after using this FMIC I will not be going back to a TMIC. Only other IC I am considering is the CBRD Q Mount, if and when it comes out.

My 20G is about 90% installed and my injectors are here, so Im getting ready for a tune. I will definately update with the results when I have them.

im interested to see what you can get out of the car with that setup, since i was considering the injen fmic with my injen cai

1QIKSTI · 05-27-2006, 07:05 PM

Quote:

Originally Posted by stretch

I'll tell you why it's better since you asked.

The TMIC's may have nearly the same length, but the air moving through them will be going much slower, so it still has much more time to cool. It will be going slower because the core is thicker and thus the air has a far greater area through which to flow.

A FMIC may have longer tubes, but the air will have to flow very quickly through those fins. I believe Corky Bell says that it is more beneficial to have many short fins than fewer long fins, making the the TMIC shape more efficient for its size. A member here reported measuring 35 degree lower temperatures in actual use with a newer TMIC.

However, it's the smaller pressure drop (compared to stock) of the larger TMIC that really makes it worth its weight. DaveNow has measured the pressure drop of the stock intercooler to be near 3psi, but the aftermarket TMIC's are closer to 0.3psi. What a huge difference! That's 2.7psi less that the turbo has to make, meaning that's 2.7psi worth of heat that the already-too-small turbo has to work to create. As you probably know, the more work the turbo has to do, the hotter the intake charge will be exiting the turbo. Even ignoring cooling capacity of the intercooler, the lower pressure drop alone should prove to be an impressive gain. It's no surprise that DaveNow also reported seeing 20whp gains.

As far as heat soak- yes, a TMIC isn't the most optimal location. It can be more of an interwarmer without proper precautions. Wrap the turbo, use a heat shield, and coat the downpipe. Engine temperatures can stay reasonable. You may notice part of the hood scoop blows air onto the turbo to force air to flow down off of it rather than up. User-reported surface temperatures of the TMIC's have been extremely encouraging, and I don't think heat soak is an issue.

THANK YOU.

1QIKSTI · 05-27-2006, 07:06 PM

Quote:

Originally Posted by billg

This is the real answer. This is why I bought the Spearco TMIC. Also, I didn't want the greater expense of the FMIC, not to mention blatant advertising of the FMIC to the police to pull me over and check my other components. Look stock! Having said that, one could get better whp and less heat soak from an FMIC.

ditto.

i will be tuning my cobb stg2 block w/fp red soon.i will be staying with my spearco top mount.for many reasons.

05stiguy · 05-28-2006, 07:18 AM

Has there been a few people try the Ebay tmic and says it holds up good?

pt518sti · 05-28-2006, 07:25 AM

^^^ I haven't seen any concrete proof...
It makes me hesitant about pulling the trigger.

I really need a big TMIC for my 20g setup this summer, but I don't want to buy something that isn't going to do it's job as well as the other ic's.

davidm_sh · 05-28-2006, 05:07 PM

Well I got my auto Dynasty TMIC on Thursday and installed it. Aside from my own custom made hose from turbo to Y pipe the install was actually very easy. The intercooler is just as good as I can tell as the TXS TMIC v1 that I bought 3 years ago. The end tanks are cast but they are polished. THere were a few little scratches on the end tanks but I don't care about that type of thing.

I have a pre/post intercooler temp gauge but I have to get at least a week under my belt of driving to see how it compares to the stock TMIC. I also have to finish up customizing the intercooler splitter to get a good seal AND provide air flow to the entire intercooler. I figure I should get that done in the next few days. I will keep everyone updated.

From a few quick little pulls I am making maybe 1-2 psi more at the same AVC-R settings which is what I was expecting. That is where people are getting their gains in HP IMHO ... less pressure drop = 1-2 psi more = 10-20hp gains. I bought it more for trying to get a larger detonation buffer (read longer before the intercooler will heat soak with my 50 trim - ala Green on a WOT run).

PSMBoXer · 05-29-2006, 11:07 AM

Go with www.alkycontrol.com and a bigger tmic and you will be very

spool up on the 20g will be crazy with meth+tmic

Quote:

Originally Posted by pt518sti

^^^ I haven't seen any concrete proof...
It makes me hesitant about pulling the trigger.

I really need a big TMIC for my 20g setup this summer, but I don't want to buy something that isn't going to do it's job as well as the other ic's.

StoreBoght · 06-10-2006, 11:20 PM

one thing i am noticing now with my 20g is my tmic is heatsoaking during my daily drives. i'll drive a little through town and get out, pop the hood and feel the turbo side and it is warm. and this is in about 80 degree weather.

i don't have a turbo wrap tho, using the stock modified heat shield. i'm really considering front mounting it. dont want to do meth...yet.

***Nachos Libres*** · 06-11-2006, 06:40 AM

^^ Alcohol/water injection can fix that.

StoreBoght · 06-11-2006, 08:09 AM

^^^question tho, the tmic will still heatsoak right? or will it make it cool to the touch?

ValvetrainEngineer · 06-11-2006, 06:20 PM

Same here with my 20g....on a cold stock TMIC BEFORE tune saw 350 whp, after tune with a hot TMIC saw 333. Ebay TMIC is in the mail, arriving on Thurs I hope...

***Nachos Libres*** · 06-11-2006, 07:20 PM

Quote:

Originally Posted by StoreBoght

^^^question tho, the tmic will still heatsoak right? or will it make it cool to the touch?

It would bring the temps down some, but yeah, it might still heatsoak.

05-26-2006, 08:17 PM	#61
Tortfeasor STi S204 Racer Car: '08 335xi Coupe Fav Mod: Dinan Reflash Location: Princeton, NJ Posts: 3,496 Join Date: Aug 2005 Trader Rating: (0)	Gwinnet, do you have the dyno graphs? It would be an interesting comparison of power curves between the two. Spool of FMIC vs TMIC, and the area under the curve as well. Peak numbers are nice, but we dont race with peak numbers after all. If the FMIC had a much better total area under the curve due to mid range gains the .3 improvement would bear more scrutiny. This ad is not endorsed by this member. Please register or login to hide this ad.

05-27-2006, 11:14 AM	#62
*Majin* A.X.D. Car: 2004 STi Location: LI, NY Posts: 12,792 Join Date: Apr 2004 Trader Rating: (2)	^ i believe Scott was comparing the STi TMIC and the TXS TMIC; not a FMIC.

05-28-2006, 07:18 AM	#67
05stiguy Amateur STI Driver Car: 05 STI Fav Mod: Buying an STI over the WRX Location: Iraq currently, but CO Springs, in 6 months Posts: 44 Join Date: Apr 2006 Trader Rating: (0)	Has there been a few people try the Ebay tmic and says it holds up good?

05-28-2006, 07:25 AM	#68
pt518sti S204 Racer Car: 2005 White/Gold STi Fav Mod: TD06-20G/Tein Flex coilovers Location: New York Posts: 2,909 Join Date: May 2005 Trader Rating: (8)	^^^ I haven't seen any concrete proof... It makes me hesitant about pulling the trigger. I really need a big TMIC for my 20g setup this summer, but I don't want to buy something that isn't going to do it's job as well as the other ic's.

05-28-2006, 05:07 PM	#69
davidm_sh Junior STI Driver Posts: 169 Join Date: Sep 2003 Trader Rating: (0)	Well I got my auto Dynasty TMIC on Thursday and installed it. Aside from my own custom made hose from turbo to Y pipe the install was actually very easy. The intercooler is just as good as I can tell as the TXS TMIC v1 that I bought 3 years ago. The end tanks are cast but they are polished. THere were a few little scratches on the end tanks but I don't care about that type of thing. I have a pre/post intercooler temp gauge but I have to get at least a week under my belt of driving to see how it compares to the stock TMIC. I also have to finish up customizing the intercooler splitter to get a good seal AND provide air flow to the entire intercooler. I figure I should get that done in the next few days. I will keep everyone updated. From a few quick little pulls I am making maybe 1-2 psi more at the same AVC-R settings which is what I was expecting. That is where people are getting their gains in HP IMHO ... less pressure drop = 1-2 psi more = 10-20hp gains. I bought it more for trying to get a larger detonation buffer (read longer before the intercooler will heat soak with my 50 trim - ala Green on a WOT run).

06-10-2006, 11:20 PM	#71
StoreBoght Grassroots STI Racer Car: 04 STi/07 A3 S-Line/ Fav Mod: No Show, Mostly Go Location: Bay Area Posts: 567 Join Date: Feb 2005 Trader Rating: (1)	one thing i am noticing now with my 20g is my tmic is heatsoaking during my daily drives. i'll drive a little through town and get out, pop the hood and feel the turbo side and it is warm. and this is in about 80 degree weather. i don't have a turbo wrap tho, using the stock modified heat shield. i'm really considering front mounting it. dont want to do meth...yet.

06-11-2006, 06:40 AM	#72
*Nachos Libres* Beneath the clothes, we find a man... and beneath the man, we find his... nucleus. Car: 2005 Subaru WRX STi Fav Mod: Underglows Location: Tyler, Texas Posts: 8,592 Join Date: Jul 2005 Trader Rating: (0)	^^ Alcohol/water injection can fix that.

06-11-2006, 08:09 AM	#73
StoreBoght Grassroots STI Racer Car: 04 STi/07 A3 S-Line/ Fav Mod: No Show, Mostly Go Location: Bay Area Posts: 567 Join Date: Feb 2005 Trader Rating: (1)	^^^question tho, the tmic will still heatsoak right? or will it make it cool to the touch?

06-11-2006, 06:20 PM	#74
ValvetrainEngineer Spec C Club Car: '04 WRB Fav Mod: A working ECU... Location: CT Posts: 1,486 Join Date: May 2003 Trader Rating: (7)	Same here with my 20g....on a cold stock TMIC BEFORE tune saw 350 whp, after tune with a hot TMIC saw 333. Ebay TMIC is in the mail, arriving on Thurs I hope...