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Good Idea Or Bad Idea?

Daboss

By Daboss,
in Engines & Forced Induction

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Daboss Experienced

Daboss

Posted
Posted

Hey forum just a quick question was wondering if I would run into any problems with a single q45 afm on a r33 gtr with a gt35 turbo. My aim is just a street friendly car with 500hp at the wheels. Would I be better off with two z32 afms or would the q45 be alright? Just looking at the air flow metering here will have all the supporting mods just want to kno which is beter a single q45 or two z32s? All help is appreciated?

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Adriano Grand Master

Adriano

Posted
Posted

You may run out of resolution with a Q45, but its easier to run than making a twin AFM single turbo pipe. There is a table here somewhere that has the flow abilities of each. Or you can put the guts of a standard AFM into a 100mm pipe, and it increases the flow abilities by 2.3. I may be wrong here, but i believe that Much of the difference in the AFM abilities is that they use the same "sensor", but by fitting it into a bigger pipe it simply measures a smaller percentage of the air. Obviously there are a few different types of sensor, but i wouldnt be surprised if a Q45, Z32 and rb26 afm all use the same sensor, whereas the rb25 one is different.

Daboss Experienced

Daboss

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  • Author
Posted
street friendly 500hp haha, hope you like wheelspin at 150

Ok well maybe not street friendly! lol lol but its gonna be used as a daily driver. So I just didnt want any idle problems and wanted to know if one q45 could handle 500hp.

Spoolup Mentor

Spoolup

Posted
Posted

Not sure what street you live on - but 500rwhp isnt very friendly.

The Q45 is up to the task - depends on who tunes it though. But putting the AFM guts into a 4 inch pipe is a good option.

Your 2 Z32's might be the best option though.

street friendly 500hp haha, hope you like wheelspin at 150
Daboss Experienced

Daboss

Posted
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Not sure what street you live on - but 500rwhp isnt very friendly.

The Q45 is up to the task - depends on who tunes it though. But putting the AFM guts into a 4 inch pipe is a good option.

Your 2 Z32's might be the best option though.

Man and I already bought the q45 :rolleyes: , bummer. When you say put the guts into a 4 inch pipe what do you mean? taking the sensor out the afm and placing it in a 4inch pvc or whateva material pipe you have or am i misunderstanding and you mean something else?

rob82 Mentor

rob82

Posted
Posted
Man and I already bought the q45 :rolleyes: , bummer. When you say put the guts into a 4 inch pipe what do you mean? taking the sensor out the afm and placing it in a 4inch pvc or whateva material pipe you have or am i misunderstanding and you mean something else?

See if the Q45 will go the distance first - just make sure it is well away from turbo and add a bend in the pipe if you can - this way you will stop reversion back through the AFM. Also if you need to neck the pipe diameter down do it close to the turbo.

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