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'95 TT
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Discussion Starter · #1 ·
I made this thread because I'm very curious how trap speeds relate with RWHP on the supra. :sadance:

So for those of you that have had your car dynoed, and have run it at the track at that same WHP, what have your traps speeds been like?

I'm mostly interested in numbers with the stock twins (since that's what I'm running) but everyone's welcome to post.
 

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1994 Toyota Supra Turbo 6spd
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i'm sure itll depend on elevation, weather etc as well. i know in vegas, most BPU cars were trapping 115-119 for the stronger ones. probably 420-480whp
 

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379whp bpu----> 119mph traps
450whp 15psi on T67----> 124mph traps
520whp 20psi on T67----> 128mph traps

This is on my car.
 

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Alex D said:
379whp bpu----> 119mph traps
450whp 15psi on T67----> 124mph traps
520whp 20psi on T67----> 128mph traps

This is on my car.
Strong trap for 450 RWHP! Of course that is MD, known for good conditions/fast tracks.

Here in hot/humid GA with my old T61:

450 RWHP----121 mph traps
550 RWHP----127 mph traps (bog, then spin on street tires, could've been faster :sadance: )
 

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Premium Member
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Trap speeds are more related to the uncorrected horsepower number you make, not the corrected, keep that in mind as you move around to different elevations. I can make 1130 on boost in Utah, but only trap 148, in Vegas I can trap 157. The difference in elevation is 2600 ft., not sure what the uncorrected numbers were until as of late........
 

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What? Me Save Gas?
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trap speeds depend on countless factors ... track conditions, elevation, ambient air pressure, humidity, your car of course, transmission, you name it ...
 

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Ex-hardtopper
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BTZ said:
how about weight.

~300rwhp 3550lbs 107mph
~370rwhp 3450lbs 114mph

what about the difference in trap speed from the 1/8 to the 1/4. I still wonder why I have gained around 26mph in the 2nd half while I have seen cars with a lot more power gain less mph.
The only pass to date that I've made with my car wasn't the greatest. Pump gas, 18psi on a BL67P (full supporting mods, stock motor) I trapped 120mph but had traction problems until late in 3rd gear when the car finally hooked. I gained 31mph from the 1/8 to the 1/4.
 

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'95 TT
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668 Posts
Discussion Starter · #10 ·
I recently dynoed at 367 rwhp / 370 tq and I generally trap right at 115-116 mph so I guess that's pretty accurate, it just seemed the dyno #'s were a bit low to hit that trap speed though. I thought I would be closer to 400.

Anyway, keep the numbers coming... this is interesting!
 

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Sooooooo JDM
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If you want to correct your 1/4 times, here's a good calculator:

http://www.modulardepot.com/density.php

For weather, you can use:
http://www.wunderground.com

Take a look at the PWS's (Personal weather station) history feature in your area to bring up the conditions for that day. I would suggest looking at more than one station as some have skewed data.

DA can make a substantial impact in trap speed. As someone mentioned, comparing corrected RWHP numbers to uncorrected E/T's is a complete waste of time.

Ryan
 

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1100+rwhp member
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I went 116 mph with 390 rwhp
I went 121 mph with 450 rwhp
I went 127 mph with 625 rwhp
and last but not least 130 mph bogging out the line and no boost on first with 700 rwhp ! LOL
 

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WI-FI FTW, GTFO fuse box!
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CONSISTANT (~30 ) passes BPU/AEM EMS at 429 RWHP(corrected)=111-113 trap.

I ALWAYS was bothered by my schwag traps.
 

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The need for speed
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Not too sure on my HP but with t67 p-trim and .81 exhaust housing I was trapping 131mph with boost between 18psi and 26psi. (VSS based boost.. 18psi from 0-60mph, then slowly ramping to 26psi by 110mph.
 

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Real Girl Thread FTW!
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mav7 said:
Not too sure on my HP but with t67 p-trim and .81 exhaust housing I was trapping 131mph with boost between 18psi and 26psi. (VSS based boost.. 18psi from 0-60mph, then slowly ramping to 26psi by 110mph.
Nice way of controlling traction issues! :bigthumb:
 

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Real Girl Thread FTW!
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Boostrush said:
Bill, how much boost were you running to trap 127? That's alot for the twins....
I agree, with traps like that you don't need a single conversion!
 
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