bearboy80

What are the difference b/w T3, T4 and T66 turbos? Those 3 are only turbos that i know, are there any other kind? which turbo would be best for D series?

b16 matt

Um Ok thats only a needle in the haystack but there are such huge differences between a t66 and a t3/t4 are enormous so do yourself a favor and search.

kommon_sense

few simple rules of turbo

- Smaller turbo spools faster (good for small engines)
- Smaller turbo heats up the air more than a larger turbo (this is bad)
- Larger turbo typically can produce more boost than a smaller turbo (i.e. greater power potential)

T3 is smaller than T4 which is smaller than T66.

The T3/T4 is a hybrid between the T3 and T4. They tried to get the best of both worlds. T3 compressor and T4 turbine, so it spools like a T3, but has power potential like a T4. If I explained anything incorrectly, I'm sure that someone will flame me.

You really don't need anything bigger than a T28 or T3 for a lil' civic engine. T28 is smaller than a T3.

Here is a turbo size calculator which will give you info on how to determine what turbo fits your needs.

http://www.turbofast.com.au/TFmatch.html

I would also recommend that you read "Maximum Boost" by Corky Bell and hang out in the turbo forum.


[Modified by kommon_sense, 8:30 PM 4/4/2003]

maxim

In my experience, a smaller one from a Greddy kit would be much better. Possibly a TD05-15g or look into an IHI turbo(very high quality and good spool).

T3/T4 is a bit big for street driving in the city with traffic(if that's the environment you live in).