GTM supercharger DYNO

Kastley85891 · 12-14-2010, 10:06 PM

11:8.1 on FI... these motors love the leaner side, wonder how they would look in SC or TT with E85 12:5.1 few more degrees of timing across the board, the extra TRQ would beery nice on top of an already great graph for both offerings.

SAM@GTM · 12-15-2010, 01:55 AM

Quote:

Originally Posted by toner123

hey sam on a car with after market exhaust and test pipes is it ok to go from the tail exhaust then or will that also cause to have a lean apearance. Also I would imagine that the 11.8 is the same for both TT and S/C cars. So at what point does the AFR start to become not so optimal to you guys? Finnal question when running data logs I know you mentioned before that they tend to read a little higher then what it really is, so does the little higher varry between each car or is there a set formula you guys use once you get the afr off the ECU. Sorry for all the questions but found this to be a great opertunity to educate my self. Thanks
Frank

Yes it is, Ultimately the closer you are to the engine the more accurate samples you will get. with having test pipes in place taking samples out of the tail pipe will be good enough.

Ideally 11.5 to 11.8 is the desirable AFR ration for forced induction, different fuel will require leaner AFR like C16 race gas.

Sam

SAM@GTM · 12-15-2010, 01:56 AM

Quote:

Originally Posted by Fezzik

Awesome clarification Sam. I would like to thank the whole team at GTM for a wonderful job and the wonderful product I have. I have to recommend to anybody the customer support is awesome. If I ever had a question, they were there to answer it. A good product is nothing without customer support and this company has both!

We are glad that we have met your expectations

.

Sam

toner123 · 12-15-2010, 01:59 AM

Quote:

Originally Posted by SAM@GTM

Yes it is, Ultimately the closer you are to the engine the more accurate samples you will get. with having test pipes in place taking samples out of the tail pipe will be good enough.

Ideally 11.5 to 11.8 is the desirable AFR ration for forced induction, different fuel will require leaner AFR like C16 race gas.

Sam

Ok so what would be acceptable reading from lets say the Blitz guage unit that reads afr from the ECU for the OBDII port? Just wondering this since I plan on getting it after christmass.
Frank

SAM@GTM · 12-15-2010, 02:00 AM

Quote:

Originally Posted by Kastley85891

11:8.1 on FI... these motors love the leaner side, wonder hwo they would look in SC or TT with E85 12:5.1 few more degrees of timing across the board, the extra TRQ would beery nice on top of an already great graph for both offerings.

Yes they do, The VQ37VHR head combustion design has a lot to do with it. You could never run the same timing tables form the VHR on the DE engine not in million year .

Sam

SAM@GTM · 12-15-2010, 02:03 AM

Quote:

Originally Posted by toner123

Ok so what would be acceptable reading from lets say the Blitz guage unit that reads afr from the ECU for the OBDII port? Just wondering this since I plan on getting it after christmass.
Frank

The blitz AFR voltage conversion tables are a little more accurate then the Osiris tables so i would say 10.8 to 11.5 would be spot on .

Sam

toner123 · 12-15-2010, 02:06 AM

Quote:

Originally Posted by SAM@GTM

The blitz AFR voltage conversion tables are a little more accurate then the Osiris tables so i would say 10.8 to 11.5 would be spot on .

Sam

Awsome that is great info to know. Thank you for the education in that area. its nice to have guages but completely useless if you don't know how to read them to know what the thresh hold is.
Frank

kevin1985912 · 12-15-2010, 02:42 AM

Quote:

Originally Posted by jamaica951

why kevin...are you getting one....

not yet bro, I'm waiting for your used one

SAM@GTM · 12-15-2010, 02:50 AM

Quote:

Originally Posted by NYBladeZ

This news definitely made my day, VVEL has greatly limited tuning and I'm blown away by this news. My only question/concern is that will it be via uprev or will those already with uprev be forced to opt for a completely new possibly standalone setup. While I want vvel cracked standalone engine management is $$$$.

No it is not via the Uprev and it may never be sense even Nissan does not control the VVEL via the ecu, it has its separate stand alone controller to do that, Our short term goal is to have full control over the engine and to do so we will be utilizing an external software and hardware to control the the cam phasing and the VVEL separately. keep in mind that having more control is not always better, More control does become more beneficial for complex modifications like supercharging an engine witch such high VE like the VQ37VHR but you may never be able to out do the factory valve timing for a stock engine set up.

Stay tuned

Sam

shumby · 12-15-2010, 08:32 AM

weeeeee hehehehehehehehe

I got to get me that BOV ASAP. Sam e-mail sent with the pick up info for the trans. Man theses number look good. A lot of stuff i need to buy now. Cannot wait to get my LTH back on rebuilt trans and the 8 psi pulley and then maybe some VVEL upgrades. man i like toys.

weeeeeeeeeeeeeeeeeeeeeeeehehehehehe

Z eliminator · 12-15-2010, 08:56 AM

Things are looking good for next year. GTM's stage 2, up rev tuned by Sam and a VVL stand alone. VB. torque convter and a built 7 AT. on 94 0ctane.
Could be big rwhp #'s coming the Z's car in Canada.
Its been a long wait for my stage 2 but hopefully it should be here early next year.
11.7's herewe come in the 1/4 mile.
The waiting is killing me. It is taking for ever, but with 4 to 5 ft of snow up here the car is put away for the winter.

" Shumby my Canadian cousin your car will be slow compared to mine "
you got the first one but i will be geting the faster one .
Canadian dollar almost at par = more GTM toys for the 370z.

sinceday1 · 12-15-2010, 11:10 AM

Sam, did you check my PM?
Another possible stg2 SC in Canada!

#452-LE · 12-15-2010, 12:21 PM

Field Trip to GTM for tours!!!

Solus · 12-15-2010, 01:48 PM

Quote:

Originally Posted by shumby

weeeeee hehehehehehehehe

I got to get me that BOV ASAP. Sam e-mail sent with the pick up info for the trans. Man theses number look good. A lot of stuff i need to buy now. Cannot wait to get my LTH back on rebuilt trans and the 8 psi pulley and then maybe some VVEL upgrades. man i like toys.

weeeeeeeeeeeeeeeeeeeeeeeehehehehehe

What VVEL upgrades are you getting? Did I miss something? Last I checked no one could do anything with VVEL yet and COBB flat out and gave up trying to mess with it.

Seb@SZ · 12-15-2010, 02:33 PM

Quote:

Originally Posted by kevin1985912

not yet bro, I'm waiting for your used one

I already ordered up your TT kit.

12-14-2010, 10:06 PM	#106 (permalink)
Kastley85891 A True Z Fanatic Join Date: Nov 2009 Location: ATX 370 - Sold Posts: 1,149 Drives: 2003 Wagon Rep Power: 18	11:8.1 on FI... these motors love the leaner side, wonder how they would look in SC or TT with E85 12:5.1 few more degrees of timing across the board, the extra TRQ would beery nice on top of an already great graph for both offerings. __________________ Boosted V8 hunter 2850 lbs and 375WHP Last edited by Kastley85891; 12-15-2010 at 03:41 AM.

12-15-2010, 08:32 AM	#115 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 45 Posts: 6,288 Drives: your sister Rep Power: 237	weeeeee hehehehehehehehe I got to get me that BOV ASAP. Sam e-mail sent with the pick up info for the trans. Man theses number look good. A lot of stuff i need to buy now. Cannot wait to get my LTH back on rebuilt trans and the 8 psi pulley and then maybe some VVEL upgrades. man i like toys. weeeeeeeeeeeeeeeeeeeeeeeehehehehehe __________________ 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

12-15-2010, 08:56 AM	#116 (permalink)
Z eliminator A True Z Fanatic Join Date: Jul 2009 Location: Ontario Canada Posts: 1,660 Drives: 370 Z 7AT Sports Rep Power: 20	Things are looking good for next year. GTM's stage 2, up rev tuned by Sam and a VVL stand alone. VB. torque convter and a built 7 AT. on 94 0ctane. Could be big rwhp #'s coming the Z's car in Canada. Its been a long wait for my stage 2 but hopefully it should be here early next year. 11.7's herewe come in the 1/4 mile. The waiting is killing me. It is taking for ever, but with 4 to 5 ft of snow up here the car is put away for the winter. " Shumby my Canadian cousin your car will be slow compared to mine " you got the first one but i will be geting the faster one . Canadian dollar almost at par = more GTM toys for the 370z. __________________ 12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015. Last edited by Z eliminator; 12-15-2010 at 08:59 AM.

12-15-2010, 12:21 PM	#118 (permalink)
#452-LE Base Member Join Date: Dec 2009 Location: Behind Dulles AP Posts: 117 Drives: '09 370Z 7AT-Stg2 TT Rep Power: 16	Field Trip to GTM for tours!!! __________________ '06 R6 track,'06 R1-LE track,'09 848 street, '11Duc Multistrada 1200ST, '07 STi T-back '09 GTM stg2 TT-370Z-7AT (470whp/ 422wtq @10PSI)

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12-15-2010, 11:10 AM	#117 (permalink)
sinceday1 Track Member Join Date: Oct 2009 Location: Canada Posts: 514 Drives: 09 Nissan 370Z M6 Rep Power: 17	Sam, did you check my PM? Another possible stg2 SC in Canada!