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Joined: Jan 2004
Posts: 744
Blue_Bomber
Senior Member
Blue_Bomber May 27, 3:58pm - #187068 
2000 Spectra Blue Mica Toyota Celica
Senior Member
2000 Toyota Celica

Joined: Jan 2004
Posts: 744
Freehold, NJ
For All Of You That Doubt TPR's CAI/SRI, Check This Out!

I did some research a while back on how our stock MAFS gets its readings, and why most aftermarket Intakes cause lagging and sometimes CELs. What I came up with is that the MAFS needs to be placed in a specific housing to get accurate readings, which requires two things:

1. 2.5" Piping: Most aftermarket Intakes use 2.75" piping, which actually slows down aiflow past the MAFS, since the engine can only suck up so much air at one time. This makes the engine think it's getting less air, since less is going by the MAFS at any given time. This results in the ECU reducing the amount of fuel used, making the engine run leaner than stock. This may not cause a CEL or bogging by itself, but the MAFS needs one other part to operate correctly (which NO aftermarket Intakes have had until now):

2. 6 MAFS "Fins": The bars that sit right in from of the MAFS in the stock airbox. These direct air through the hole in the bottom of the MAFS. This in turn helps pull air through the top of the MAFS. The air enters the front of the MAFS, goes up through the top with the two little spring wires, then comes out the back, and gets accelerated by the air going through the bottom. Thee intersecting fins on either side of the MAFS help concentrate the airflow around the bottom hole, increasing the airflow through the MAFS even more. These fins are just as important to achieving the correct air speed through the MAFS as the right size piping is, which is why the 2.5" RMM Short Ram with no fins still causes bogging, even though it has the right piping size.

TPR MAFS fins layed over the stock airbox tube with its own fins:
Linked Image

The TPR CAI and SRI has both of the above qualities, so when installed correctly and used with a clean, properly working MAFS, you will NEVER get a lean CEL! Basically, the TPR Intakes are comparable to running with a stock airbox with the restriction almost eliminated. The fuel curves are much better than with any Intake, so you will never run lean and bog or get a lean CEL (P0171). In the end, if you didn't get a CEL or bogging/hesitation problems running with the stock airbox, you won't get any running with these Intakes.

I originally came up with the idea of modding the stock airbox to achieve the same thing (codename: Perfect CAI), and it has worked flawlessly for everyone who has tried it, on CAIs and SRIs. I'd link to the posts with the info and reviews, but the site they're on has been mysteriously blocked here for some reason wink (if anyone wants the links for proof, email me at spectracelica@ieathondas.com). This same idea was used in the TPR Intakes for those of us who wanted a show quality appearance instead of a DIY job. The TPR CAI does have a different power curve than the ebay/AEM CAI and stock airbox combo, but it still competitive and/or superior to any other CAI out there (including AEM Gen 1 and 2, Injen, K&N , etc).

Of course, if you have a Power FC or any other aftermarket ECU or piggyback ECU, you can tune the MAFS to read any Intake properly, since the MAFS and ECU won't be limited to the stock detection range. But for cars with the stock ECU, the TPR Intakes are the best and safest Intakes on the market.

I've attached pics of the Perfect CAI stock airbox mod I mentioned above (email me for info on how to do it, since I can't link to that "other" site rolleyes ). All this mod is is cutting out the tube part of the stock airbox, smoothing the surface, and attaching it to any aftermarket Intake. It may not look that great, but that's what the TPR Intakes are for. These pictures are NOT of the TPR Intakes:
1870014158-Pefect-CAI.gif
Joined: Oct 2002
Posts: 2,677
RicePowered
ECelica Staff
RicePowered May 27, 4:13pm - #187069 
ECelica Staff

Joined: Oct 2002
Posts: 2,677
South Jersey
nice bomber thumbsup thumbsup thumbsup
Joined: Sep 2003
Posts: 476
Easy_C
Senior Member
Easy_C May 27, 4:18pm - #187070 
2000 Spectra BLUE BABY! Toyota Celica
Senior Member
2000 Toyota Celica

Joined: Sep 2003
Posts: 476
Mass
thank you bomber, you know what you are talking about.

TPR Intake! - Injens high end with AEM's low end and NO BOGGING!
TPR EXHAUST! - Exhaust made 10.5 whp peak and 32 whp at 6300 on my car!!!
http://www.tuningprecisionracing.com/shop
Joined: Aug 2004
Posts: 993
Celica2k
Jace
Celica2k May 27, 4:40pm - #187071 

Jace
2000 Toyota Celica GT

Joined: Aug 2004
Posts: 993
Springfield, MO
so where could you buy this? sounds nice
Joined: Apr 2003
Posts: 1,899
Gen7fan
ThE iRoN mAiDeN
Gen7fan May 27, 4:52pm - #187072 
2003 silver streak Toyota Celica GT
ThE iRoN mAiDeN
2003 Toyota Celica GT

Joined: Apr 2003
Posts: 1,899
Maryland
^^^ Ditto, I want one.
Joined: Sep 2003
Posts: 476
Easy_C
Senior Member
Easy_C May 27, 4:56pm - #187073 
2000 Spectra BLUE BABY! Toyota Celica
Senior Member
2000 Toyota Celica

Joined: Sep 2003
Posts: 476
Mass
TPR or blue bombers mod?

TPR Intake! - Injens high end with AEM's low end and NO BOGGING!
TPR EXHAUST! - Exhaust made 10.5 whp peak and 32 whp at 6300 on my car!!!
http://www.tuningprecisionracing.com/shop
Joined: Jan 2004
Posts: 744
Blue_Bomber
Senior Member
Blue_Bomber May 27, 4:57pm - #187074 
2000 Spectra Blue Mica Toyota Celica
Senior Member
2000 Toyota Celica

Joined: Jan 2004
Posts: 744
Freehold, NJ
Originally Posted by Celica2k

so where could you buy this? sounds nice
Originally Posted by Gen7fan

^^^ Ditto, I want one.


Well, my Perfect CAI is a do-it-yourself mod that you can do with your stock airbox, stock Intake hose, and any pipe-based aftermarket Intake (eBay CAI preferred due to its low price and high Performance). Email me (spectracelica@ieathondas.com) for instructions on how to make it, since I'm not allowed to link to the board the instructions are on. rolleyes If you really think you can't make it yourself, I could mod your stock box for $50. I'd need you to mail your box to me. The mod is really simple to do though, so I doubt you'd have to resort to that. wink

If you meant the TPR CAI and SRI, just PM EasyC. He's the owner of TPR.
Joined: Apr 2003
Posts: 1,899
Gen7fan
ThE iRoN mAiDeN
Gen7fan May 27, 5:26pm - #187075 
2003 silver streak Toyota Celica GT
ThE iRoN mAiDeN
2003 Toyota Celica GT

Joined: Apr 2003
Posts: 1,899
Maryland
PM sent to Chris. BB love your mod to, read every word over at that "other" celica site. But who can pass up black metalic powder coat with no CEL. Love N_C.org members thinking out side the box.
Joined: Jan 2004
Posts: 744
Blue_Bomber
Senior Member
Blue_Bomber May 27, 5:54pm - #187076 
2000 Spectra Blue Mica Toyota Celica
Senior Member
2000 Toyota Celica

Joined: Jan 2004
Posts: 744
Freehold, NJ
Originally Posted by Gen7fan
But who can pass up black metalic powder coat
Actually, the TRP Intakes use a much stronger coating than powdercoat. It starts off with a layer of ceramic paint, which helps reduce heat soak by reflecting away from the pipe, leading to cooler Intake air temps. Next comes the color paint layer. Finally, a clear layer of POR 15's Pelucid is applied. Pelucid is one of the hardest, most flexible clear paints out there, and will resist chips, scratches, peeling, flaking, etc. better than powdercoating or any other type of paint.

For reference, I used POR 15's rust preventative paint on my brake rotors. It took me an entire trip home from a friend's shop (80 miles, mostly freeway) to wear the paint off the braking surface. I barely had any braking power for the first 10 stops. eek As opposed to regular spray paint that will scrape off in the first 2 uses of the brakes (powdercoat isn't much stronger). Pelucid is the best you can get.

BTW, the upcoming TPR exhaust will also be coated in ceramic paint to improve exhaust flow, and will use POR 15's high temp paint to eliminate the possibility of external rust.
Joined: Apr 2003
Posts: 1,899
Gen7fan
ThE iRoN mAiDeN
Gen7fan May 27, 6:47pm - #187077 
2003 silver streak Toyota Celica GT
ThE iRoN mAiDeN
2003 Toyota Celica GT

Joined: Apr 2003
Posts: 1,899
Maryland
Thats fucking sweet!! thumbsup
Joined: Oct 2002
Posts: 1,233
EuRoBoYGT
black & blue 4 you
EuRoBoYGT May 27, 8:20pm - #187078 

black & blue 4 you
2000 Toyota Celica GT

Joined: Oct 2002
Posts: 1,233
El Paso, TX
pretty cool thumbsup

[Linked Image]
i've been changing but you'll never see me now
now i'm blaming you for everything
Joined: Sep 2002
Posts: 3,030
Erick
Bread Fishing..
Erick May 27, 9:57pm - #187079 

Bread Fishing..
2001 Toyota Celica GT

Joined: Sep 2002
Posts: 3,030
Bay Area, CA
hmm interesting thumbsup

LNK
"you only need something when you know it exists..then it becomes a want"
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