GTM Performance Engineering Stage 1 Turn key Supercharger kit In house Installation.

theDreamer · 06-11-2010, 02:49 PM

Quote:

Originally Posted by shumby

From Sam i know th enumbers were not anywhere near where we wanted them. So really i do not care. I want the best out of this and this is what Sam sugests to get theat. I trust him fully. he did warn me about the LTH and that it might be an issue. We just did not think it would be this much of an issue

If you had set numbers you wanted to hit then you probably made the right choice to just get to that. Hope it turns out great.

shumby · 06-11-2010, 02:50 PM

lol i think he was just sharing. now if he could do this with my 5.0 FX i would be sending him it right now

shumby · 06-11-2010, 02:51 PM

damn one post to slow

bullitt5897 · 06-11-2010, 02:52 PM

probably was...

Sam will have you taken care of. Your gonna have to kiss your wifes butt for a long time!!!

shumby · 06-11-2010, 02:53 PM

that sounds good to me . lol

i think the lack of kissing it will be te issue

rednek01 · 06-11-2010, 02:54 PM

Quote:

Originally Posted by bullitt5897

these are two totally different animals the 5.0 and the VQHR especially down to the tuning aspect.

Domestic sports cars are built so that the aftermarket can really pump them up... its been that way for decades.

HUH? both of them have independent variable valve timing. How is it totally a totally different animal? the concepts are the same the engines are similar. the programming is different, yes but they aren't that different.

theDreamer · 06-11-2010, 02:55 PM

Quote:

Originally Posted by shumby

that sounds good to me . lol

i think the lack of kissing it will be te issue

Just buy her something fancy, usually shiny.

JB-370z · 06-11-2010, 03:08 PM

Quote:

Originally Posted by theDreamer

Just buy her something fancy, usually shiny.

No these kinda things can;t be bought. . .Well I guess if he came home with some diamonds she would kool down. But untill then his @ss is grass

theDreamer · 06-11-2010, 03:44 PM

Quote:

Originally Posted by JB-370z

No these kinda things can;t be bought. . .Well I guess if he came home with some diamonds she would kool down. But untill then his @ss is grass

True, guess a shiny new supercharger will not do it?

FuszNissan · 06-11-2010, 04:03 PM

Quote:

Originally Posted by theDreamer

True, guess a shiny new supercharger will not do it?

FuszNissan · 06-11-2010, 04:03 PM

If I was Sam, I would include a set of Diamond Earrings with every F.I. purchase.

bullitt5897 · 06-11-2010, 05:27 PM

Quote:

Originally Posted by rednek01

HUH? both of them have independent variable valve timing. How is it totally a totally different animal? the concepts are the same the engines are similar. the programming is different, yes but they aren't that different.

The 370z has a much more valve overlap than the mustang. Hence the problem that shumby is having with the SC setup. We have different designed valvetrain. Yes we both have a type of vvel but so is vtec. Doesn't mean we have vtec lol

Jordo! · 06-11-2010, 07:21 PM

I don't get it. Is it that their reflash device can not edit the VVEL maps, or just no one knows what they're doing? They should be able to nail this within 4-6 hrs of systematic changes to the maps provided they have full control over VVEL...

As someone else said, too much valve overlap will blow the boost right out before enough cylinder pressure builds. At least you don't have to deal with the built in restriction of a turbo...

Once they get the rough fuel and spark advance map sorted, they just need to run successive dynos manipulating valve and lift. Overlay the dynos to find where power is gained vs lost, while noting boost levels (note that more boost doesn't always mean more power either).

My educated guess is that you need less overlap in the low and midrange and probably don't even need to mess much with lift until the boost really starts to build (centrifigul's build boost late, so this means few changes until later in the rev range).

If it needs changes early on, it might actually be flowing less air if the manifold design was altered from stock, so it might need a little less lift and a little more duration until higher RPM's when boost starts to seriously build -- again, just a guess).

I'm really sorry you are having a tough time with this -- I hope they figure out what they are doing soon -- good luck!

Neo187H · 06-11-2010, 07:25 PM

Quote:

Originally Posted by Jordo!

I don't get it. Is it that their reflash device can not edit the VVEL maps, or just no one knows what they're doing? They should be able to nail this within 4-6 hrs of systematic changes to the maps provided they have full control over VVEL...

As someone else said, too much valve overlap will blow the boost right out before enough cylinder pressure builds. At least you don't have to deal with the built in restriction of a turbo...

Once they get the rough fuel and spark advance map sorted, they just need to run successive dynos manipulating valve and lift. Overlay the dynos to find where power is gained vs lost, while noting boost levels (note that more boost doesn't always mean more power either).

My educated guess is that you need less overlap in the low and midrange and probably don't even need to mess much with lift until the boost really starts to build (centrifigul's build boost late, so this means few changes until later in the rev range).

If it needs changes early on, it might actually be flowing less air if the manifold design was altered from stock, so it might need a little less lift and a little more duration until higher RPM's when boost starts to seriously build -- again, just a guess).

I'm really sorry you are having a tough time with this -- I hope they figure out what they are doing soon -- good luck!

No one has cracked VVEL yet, hence the issues.

shumby · 06-11-2010, 07:28 PM

^^^ sumed it up nicely in one line. thank you

06-11-2010, 02:50 PM	#122 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 236	lol i think he was just sharing. now if he could do this with my 5.0 FX i would be sending him it right now __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

06-11-2010, 02:51 PM	#123 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 236	damn one post to slow __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

06-11-2010, 02:52 PM	#124 (permalink)
bullitt5897 Premium Member Join Date: Jan 2009 Location: North GA Posts: 6,831 Drives: Twin Turbo Z34 Rep Power: 3682	probably was... Sam will have you taken care of. Your gonna have to kiss your wifes butt for a long time!!! __________________ *Shop Cars: 2013 318whp Nismo VspecII 370z SOLD, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054*

06-11-2010, 02:53 PM	#125 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 236	that sounds good to me . lol i think the lack of kissing it will be te issue __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

06-11-2010, 04:03 PM	#131 (permalink)
FuszNissan A True Z Fanatic Join Date: May 2009 Location: St. Louis Posts: 14,275 Drives: Pure Sex Rep Power: 542	If I was Sam, I would include a set of Diamond Earrings with every F.I. purchase. __________________ Mods: Too Many to list! LouFuszNissan ZDAYZ 2012

06-11-2010, 07:21 PM	#133 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	I don't get it. Is it that their reflash device can not edit the VVEL maps, or just no one knows what they're doing? They should be able to nail this within 4-6 hrs of systematic changes to the maps provided they have full control over VVEL... As someone else said, too much valve overlap will blow the boost right out before enough cylinder pressure builds. At least you don't have to deal with the built in restriction of a turbo... Once they get the rough fuel and spark advance map sorted, they just need to run successive dynos manipulating valve and lift. Overlay the dynos to find where power is gained vs lost, while noting boost levels (note that more boost doesn't always mean more power either). My educated guess is that you need less overlap in the low and midrange and probably don't even need to mess much with lift until the boost really starts to build (centrifigul's build boost late, so this means few changes until later in the rev range). If it needs changes early on, it might actually be flowing less air if the manifold design was altered from stock, so it might need a little less lift and a little more duration until higher RPM's when boost starts to seriously build -- again, just a guess). I'm really sorry you are having a tough time with this -- I hope they figure out what they are doing soon -- good luck! __________________ Enjoy it. Destroy it.

06-11-2010, 07:28 PM	#135 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 236	^^^ sumed it up nicely in one line. thank you __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

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