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CrimsonGTP
04-28-2010, 07:24 AM
What do you think i could gain from just doing intake and exhaust on the car and having a dyno tune done. Modern muscle is only about an hour from me. just wondering what kind of gains i can make whether it would be worth the money or not.

WoodburyMan
04-28-2010, 07:32 AM
20whp-30whp easy on a ls1.

CrimsonGTP
04-28-2010, 07:34 AM
20whp-30whp easy on a ls1.
chalk one up for complete win. that sounds like money well spent to me...

CrimsonGTP
04-28-2010, 07:35 AM
20whp-30whp easy on a ls1.
chalk one up for complete win. that sounds like money well spent to me...

so with all the TOP END ESTIMATES such as KN's 18whp im supposed to get plus exhaust plus tune, i should be at like 350-360whp?

EDIT: just found a guy with a bone stock LS1 GTO and all he did was dyno tune and he got 335hp/342tq... say it aint so that i could be around 360tq!

WoodburyMan
04-28-2010, 07:47 AM
:bs:

That's 60+whp gain from stock on just a tune. No :lol: Unless he's tuning for 110 Octane or something.

K&N says 18hp. K&N overestimates, always. Take that as anywhere from 10-15whp. Exhaust, take it the same way. I've never seen HP #'s on any GTO exhaust, and estimated gains, but expect the same as you would a intake. Tune that shit together though and thats when you get everything. I'd see you putting down anywhere from 300who-320whp stock. With everything, I'd go anywhere from 320whp-340whp. Possiblely high as 350whp if you car is a factory freak.

I see factory freak LS2's putting down at much as 355whp stock, where they should be anywhere from 320whp-340whp stock.

Right now, with exhaust intake and tune, conservately estimating I made 320whp stock, I should be up to 340-350whp. There's a chance I might be making more, maybe up to 370whp, but I say 340-350 just to not overestimate. I wanna dyno soon.. Headers, and retune, you can gain 20whp from just that easily.

LoJac963
04-28-2010, 11:18 AM
^ :agreed:

this man knows his stuff! :D

mi04se1
04-28-2010, 11:54 AM
Depends on the dyno and conditions also.

WoodburyMan
04-28-2010, 12:16 PM
Exactly.

Mustang Dyno's also dyno higher than others.. at least 95% of the time. (There are A LOT of variables you can set in them related to atmosphere conditions and such, and they WIDELY varry.) This is bad and good, as it can try and get your "true" value... but if the guy programming it doesn't know crap on how to work it, it's widely inacurate. Also, you go back to the same place a week later, different conditions, and they set it up differerntly, you will get a completely different reading.

DynoJet's are regarded as "more consistant". They typically dyno lower than Mustang Dynos. They also have less settings for operating to play with... thus if the guy doesn't know what they are doing they are less likely to screw it up. Also, less settings mean the readings will be more consistant. Go back a week from then, different conditions, they will be very very close.

Superflow is a third, less popular dyno, since they are expensive. (There's only one here in my state). They are almost the same as DynoJet's as far as consitancy and settings go, minus they will read closer to the cars "real power" much like Mustang Dyno's set out to do...thus they are regarded as more accurate than DynoJet.. with the same consitancy... this the best of both.

stevey722
04-28-2010, 12:21 PM
dyno jet usually read higher than mustang dynos......

WoodburyMan
04-28-2010, 12:25 PM
dyno jet usually read higher than mustang dynos......
It depends on the particular Mustang dyno :coupe:

Thebeast
04-28-2010, 01:36 PM
id get a dyno tune if i was you. when my warranty is up, ill be doing headers and a cam. pick up 60-80hp at the wheels. cam alone is 66 at the wheels.
so for now, just brakes and rims. 2014 is when my warranty is up.
do you have a warranty? if you dont i would definately get headers

stevey722
04-28-2010, 01:44 PM
yea he has a warranty..... just order a new ecm and get a dyno tune!

WoodburyMan
04-28-2010, 02:03 PM
yea he has a warranty..... just order a new ecm and get a dyno tune!
It doesn't work that way with GTO's.

You can't just throw a ECM in like you can with G6's. You need a security code relearn and other crap done which you can only do once the new ECM has been put in the car via a Tech2. That's why Chris only offers tuned TCM's (automatic only).

Likewise, cams don't add a set amount of power. You can get a large variaty. There's small and large cams, and on both you can do custom grinds to whatever spec duration and lift you want. Most people go small "baby" cams with a medium spec for daily drive-ability unless they are tracking it completely.

Mulling it over, I wanted a Cam, but I can't do it until my GMPP is over in May 2012.. which I will be hopefully adding a blower then as well. For now, I have my exhaust, intake, and tuning. Going to be adding headers end of summer hopefully, and porting intake manifold and throttle body, and either LS3 heads or ported heads too.

Thebeast
04-28-2010, 02:07 PM
i was told headers void the warranty as well? is that true

WoodburyMan
04-28-2010, 02:18 PM
i was told headers void the warranty as well? is that true
No. Yes. Just like how a intake "voids" a warranty. It doesn't mean shit unless they can specifically prove the modified part caused the problem.

Example... if I I get headers, and my tranny blows... they cover the the tranny. Unless they can prove within reasonable doubt that its the headers that caused something to fail, it's fine.

Deal is with a Cam... it literally is the heart of the engine as it controls the movement of EVERYTHING more or less that moves in the engine.. so if something went, they'd easily be able to point to that and say something happened because of that.

Also tuning can void your warranty on engine itself. That's why when I had the G6, I had the stock ECM. For the GTO, i can use my Diablosport Trinity to return the programing on my ECM to stock in a instant.

CrimsonGTP
04-28-2010, 02:29 PM
actually i do NOT have a warranty. i had a 30 day 1000 mile from the dealer.(which is over) so i have no warranty. and yeah sure id love headers, but i dont have 1300 dollars to blow on car parts right now. 400 bucks for 30 hp sounds pretty good to me.

mi04se1
04-28-2010, 09:34 PM
id get a dyno tune if i was you. when my warranty is up, ill be doing headers and a cam. pick up 60-80hp at the wheels. cam alone is 66 at the wheels.
so for now, just brakes and rims. 2014 is when my warranty is up.
do you have a warranty? if you dont i would definately get headers

If you have my setup plus a cam, youll bee over 400 easy.

CrimsonGTP
04-28-2010, 10:24 PM
id get a dyno tune if i was you. when my warranty is up, ill be doing headers and a cam. pick up 60-80hp at the wheels. cam alone is 66 at the wheels.
so for now, just brakes and rims. 2014 is when my warranty is up.
do you have a warranty? if you dont i would definately get headers

If you have my setup plus a cam, youll bee over 400 easy.
but cam then also needs springs and rods and tune which =moneeeeeeeeeeeyyyyyyyy

Thebeast
04-28-2010, 11:36 PM
i have superchips cortex tuner, roto fab intake and magnaflow exhaust. next is headers and brakes and a trip to alberts dyno shop for some numbers.
stock is 365. so what do you think im at now?

as to your gto, any way you go should be a nice gain no matter what

WoodburyMan
04-29-2010, 12:11 AM
i have superchips cortex tuner, roto fab intake and magnaflow exhaust. next is headers and brakes and a trip to alberts dyno shop for some numbers.
stock is 365. so what do you think im at now?

as to your gto, any way you go should be a nice gain no matter what
L76 is actually 361 or 362hp (CRANK hp...)

Intake, tune, exhaust...

You have around 310whp stock. Conservatively 330whp. Id's say you can hope for 340's easily. Might be able to touch 350whp but not with a boxed tune. You need a real street / dyno tune.

Thebeast
04-29-2010, 12:20 AM
thanks for the info. this summer is definately going to be a money making summer so alot more to come for this awesome ride(headers, hi flow cats, brembos, z-rated tires, dyno time)

cookiemonster17
04-29-2010, 12:50 AM
whats the price range for a dyno tune by u?

CrimsonGTP
04-29-2010, 07:00 AM
whats the price range for a dyno tune by u?
for me at modern muscle a bolt on dyno tune is 400 bucks

coolmanvette75
04-29-2010, 07:02 AM
here in jersey the guys on corvette forum just did a dyno tune session for like $150. they were able to do it that cheap because there were tons of people there

CrimsonGTP
04-29-2010, 07:06 AM
here in jersey the guys on corvette forum just did a dyno tune session for like $150. they were able to do it that cheap because there were tons of people there
hmmmmmmmm midwest dyno meet?

coolmanvette75
04-29-2010, 07:07 AM
:lol:

WoodburyMan
04-29-2010, 09:34 AM
Theres a guy in PA that is doing a grand opening for his dyno and doing dyno tunes for GTO's only for $200 special for the first week.

CrimsonGTP
04-29-2010, 09:35 AM
That's a loooong drive

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LoJac963
04-29-2010, 10:44 AM
mine has already been tuned by our local guy so theoretically I should only have to pay for a "retune" when I'm ready which is $100 but we'll see