blackeg

i like the atp cutout because its vacuum actuated and i think i might be to lazy to push a button to open it, as with the dmh. the dmh seems to be a very nice unit, comes with the better piping than the atp for flow. guess im looking for personal experience on both, mainly the 2nd gen atp one, cause i saw some good stuff about the dmh when i searched.

boostd hatch

I prefer the DMH unit, it is made very well. As for the vaccum actuated one I think it kinda defeats the purpose of incresed spool time because it dosent open until the turbo is already making boost. And you could never turn it off if you wanted the car to be totally quiet.

yee SERIOUS

iTrader: (1)

^^^ i agree...with the actulator on there, it won't open until it sees boost. how can you show that off at idle?

mrbsponge

i had a DMH for about 2 years and it was the best ****!

turbo si with stock exhaust and a black intercooler! mad nice!

blackeg

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mrbsponge &raquo;</TD></TR><TR><TD CLASS="quote">i had a DMH for about 2 years and it was the best ****!

turbo si with stock exhaust and a black intercooler! mad nice!</TD></TR></TABLE>

good to hear, ill probably order the dmh tomorrow. i like the sleeper too that you had going, im gonna be rolling stock exhaust, ill paint the i/c and roll on stock si wheels with all stock exterior

AlphaQup

Any of you DMH guys have pics of your cutouts installed? Mine is in the mail... just wanted to get an idea of how you guys chose to mount that badboy.

N20civicB18

why not just do a electric cutout on a WOT switch?

B18Flip

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mrbsponge &raquo;</TD></TR><TR><TD CLASS="quote">i had a DMH for about 2 years and it was the best ****!

turbo si with stock exhaust and a black intercooler! mad nice!</TD></TR></TABLE>

nice...2 years and no problems??

yee SERIOUS

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by N20civicB18 &raquo;</TD></TR><TR><TD CLASS="quote">why not just do a electric cutout on a WOT switch?</TD></TR></TABLE>

that's a good idea...like a mircoswitch used for nitrious eh?

but would if you WOT to open it....and then you left off the gas to shift and then hit WOT again, wouldn't that close it?

thermal

Here's mine: Look at the 4th and 5th picture:
http://www.hstuners.com/forums...er=14

blackeg

well.... i went with the dmh. loved it. i only have maybe 2-3 inches clearence to the ground. sometimes i would nudge the motor out of place and cause the flap to not open. no biggie just go under and redajust. well happend again the other day, so i go down to adjust and find this.



yea... i dont remember hitting anything or hearing it bouncing under the car.

now i hear dmh has actually given out motors under the warranty, but idk, ive heard they are hard to contact lately and whatnot. i called on fri and it was busy, im gonna call again this week and see what comes of it. totally sucks because my car is a dog with the stock exhaust

mr_hahn73

DHM end of story!

dpetro1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aallbbeerrtttttt &raquo;</TD></TR><TR><TD CLASS="quote">just wondering, when you guys tune your motors, do you tune for open cutout or closed cutout? or does it even matter at all?</TD></TR></TABLE>

thats what i was thinkin. i assume they tune for open cutout since they probably dont go WOT too much when the cutout is closed. i guess the o2 sensor could make the small adjustments when cruising with the cutout closed?

or am i way off here?...

NightRiderS2K

i tuned for open cutout.. yet I drive with it closed most of the time...

I still get avg 26mpg mostly city driving.

SPOON_BeIgHtEeNsEe

do u guys have leaking problems? i mean the noise doesnt really bother me but i wouldnt mind it being alittle quiter when its not open and loud when its open... mine leaks and its kinda loud when not open...

blackeg

tune open cutout . it will run a little richer with it closed, and you will more than likely make a few less psi depending on your exhaust, but tune for open cutout.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SPOON_BeIgHtEeNsEe &raquo;</TD></TR><TR><TD CLASS="quote">do u guys have leaking problems? i mean the noise doesnt really bother me but i wouldnt mind it being alittle quiter when its not open and loud when its open... mine leaks and its kinda loud when not open...</TD></TR></TABLE>

i hear the exhaust a little more. its kinda a lower rumble though, i think possibly in part to the fact i have a 3"dp and no cat as well though...

Quad-Damage

THE ATP UNIT IS **** PLEASE SEARCH!
My friend was runing it on his turbo teg, it doesn't open or close correctly. The welds are very weak tigs and don't hold much.

DMH ALL DAY over this unit

nuclearhappines

anyone try a cutout with a supercharged car ?

thinking of getting one for the benz (keeping it stock 90% of the time, but giving it that extra oomph when i want to get on it)...

I searched/googled cutout dynos a while back and ran into several pontiac GTP owners showing power losses with cutouts ...

what do you guys think ?

edit: PS... how fast do these cutouts respond... if you put it on a WOT switch how long will it take to go open... and besides... do you typically do they use a momentary switch , or a toggle switch ?

My car's an automatic so i won't have the between shifts problem... i could just wire it up to the kickdown switch (WOT switch) and it will cross over when i need it to... however will it damage it to keep getting voltage while i'm at WOT or are they desigend to auto switch off even if it's still powered ?

thx

Quad-Damage

it's all bad, the weld on the open and close are very weak, if u have stiff mounts it's going to snap in weeks happen to my friend. + on and dyno and driving it would get stuck 1/2 open and wouldn't close all the way, leaks like crazy, he even try high temp honda bond to try to make it seal when closed, still leaked and only went 1/2 way

STAY AWAY

blackeg

damn rota even your daily driver is boosted haha .

actually i remember seeing you run the yellow hatch at lebanon valley last summer and you had a cutout. you got me thinking into getting one which i did and im very happy

BB6-213

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackeg &raquo;</TD></TR><TR><TD CLASS="quote">

good to hear, ill probably order the dmh tomorrow. i like the sleeper too that you had going, im gonna be rolling stock exhaust, ill paint the i/c and roll on stock si wheels with all stock exterior </TD></TR></TABLE>


On my prelude, I have the stock exhaust, black IC and untill I spool or open the exhaust, nobody knows it's boosted....you can have alot of fun with a cutout.

nickromeo

atp sucks because it doesnt help with turbo lag.
its waits for the pressure to build up then it opens, rather than being open already and spool the turbo fast when u punch it

blackeg

summit sells the dmh electronic cutout

drumking15

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackeg &raquo;</TD></TR><TR><TD CLASS="quote">tune open cutout . it will run a little richer with it closed, and you will more than likely make a few less psi depending on your exhaust, but tune for open cutout.
</TD></TR></TABLE>
this richness seen is due to increase in back pressure of the exh...many wbo2 companies list this already....so you should tune for open cutout...end of story...so its really not running that much richer when closed...its just your wideband makin you think so