T-25's - Horsepower & Limits

>From: Danny Holland <thedsmguy@hotmail.com>
>To: SoCal-DSM@egroups.com
>Subject: Re: [SoCal-DSM] Re: tranny clunking noise!!!??
>Date: Tuesday, May 30, 2000 4:36 PM
>
>The T-25 will only support 250hp.  You can get the car to make 250 hp with
>free mods, filter, exhaust, upper i/c pipe and 1g bov running 17psi with an
>MBC.  The T-25 runs out of breathe at around 5000 RPM so if you crank your
>boost to 18psi the car is going to be running about 10 psi at 5500 rpm. At
>sea level Im not sure what you will run but at 6000' 250hp is good for a
>14.5 so I suppose a high 13 at sea level.  Now that 14.5 is based on an AWD
>car with a FWD car you can expect run a high 14 low 15 with 250hp at 6000'
>feet so a mid to low 14 at sea level.  I dotn knwo how much sense that makes
>to any of you but i hope it meant something FWIW.
>
>-Danny

----------

Several years ago I ran mid to high 13's with a T-25 on my AWD.  13.65 @
~ 97mph.  There were still plenty of mods I could have done to make the
car go faster with the T25.  So wow.. Stock 2G AWD's have 210 hp and
typically run 15.2's.. And with just 40 more horsepower they can run mid
13's?  You sure about that 250hp cap?

Actually, I've never been a fan of horsepower claims.  I doubt my car ran
11's from huge horsepower #'s, especially with a stock 2G head, unclipped
18G turbo, etc.  It's all about torque curve, folks.  Mine is very flat
and very steady (no hiccups, no big peaks & valleys, just a nice strong
reliable curve).  The T25 can turn out a nice little curve down low & in
mid-range, you'll have a hard time going faster than a mid 13 but you can
have a lot of fun up to that point and it shouldn't cost you a fortune to
get there.

As for 10psi at 5500.. You're not far off the mark, if memory serves
it'll hold 13.  I think 10-11 comes around 6000RPM.

Interestingly enough, it sometimes paid to stay in gear well past 6000rpm
when racing in the 1/4.. Remember, it's not just the power you're
currently making at that RPM, it's what happens when you shift to the
next gear.  Holding it longer in 3rd gave the car a chance to pull better
in 4th.  1st & 2nd didn't benefit from going too much past 6K though.

Marc S

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