FI with continous high speed driving 130MPH+

LafitteZ

fellas I know its not optimal for me to start in 6th at 80 mph and go all the way up. Iv had my car for 2 years and iv tried things just because I can. If I were trying to get to 160 faster id start in a lower gear. I just wanted to see how it would start to pull and not stop pulling until I let off the gas. I chose to stop at 160 when i did it. With that being said I think i could redline this car in 6th gear with enuff room. Im at 540 whp on a gtm twin turbo. all stock aero besides a vented hood. the car did 160 before the turbos. I now have 200 more horses.

conmam

Overall, It is good to know that even a stock factory engine with about 500whp can speed up to 190 mph and won't get burn out that easily if the entire engine temperature ( including oil ) stays cool enough and as long as the engine does not knock at that load.

The VVEL is very robust as long as we keep the rpm at 7500 rpm max and make sure that it does not have any moments of oil deprivation. If the VVEL mechanism is oil starved at all, there is a very highly likely chance that it will crash sooner or later. One of the things that I must do for my car is to add the Greddy oil pan in there.

This oil pan not only adds in about 2 additional quarts of oil and cools it further, it does gave some baffle plate design that will surely help to minimize if not eliminate oil starvation during 1.4 G turns at 6000+ rpm. Cheap insurance against burning out the motor, totally worth it. I will post detail of my work once I am done with that.

conmam

Does anyone know a better oil pan for this VQ37 engine in the market than the Greddy one ?? All of us, please let me know if you do .......

I found AM Performance oil pan. The baffle plate design looks pretty killer and awesome but costs 1 grand. Worst than that, these AM performance people NEVER replied to my emails at all. Their telephone number in Scotts Valley, Ca is disconnected as well ......

Rusty

AM Perf. is out of business. There are a few of their oil pans floating around. But nobody is giving them up. One person in another thread said that they MIGHT make a couple of them. But that dead ended. I'm using a oil pan spacer right now. Might go to the Greddy later.

__________________

浪人 - 殺し屋
"The Difficult Anytime, The Impossible By Appointment Only"
http://www.the370z.com/members-370z-...o-journal.html

Mitco39

According to my spreadsheet.

640hp - 210 mph Rev Limter Governed
500hp - 210 mph Rev Limiter Governed
450hp - 208 mph
400hp - 199 mph
350hp - 188 mph
300hp - 176 mph
280hp - 170 mph

Based on the math anyways.

__________________
2007 Chevy Duramax - EFILive Tuned By Me
2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me
The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her
My Build --> http://www.the370z.com/members-370z-...39s-build.html

FPenvy

wouldnt weight also be a factor in this or are you just setting one weight in the equation?

i mean with higher HP youre typically adding weight with engine parts, turbos, coolers, etc...

i know it may not matter since its just a simple equation for fun purposes but just a thought lol

__________________
324whp/258wtq AAM Tuned |F.I. NonRes CF CBE/NonRes TestPipes #373|UpRev Tuner|Akuma Motorsports Intakes|Z1 34 Row Oil Cooler

Mitco39

Take a look at the spreadsheet I put up in my thread.

These values are calculated taking into account weight (I had it set at 3300 lbs), wind resistance (assuming 0.30 CD) and the torque curve of our cars. What I did was took a stock dyno chart and then scaled it up to get the desired peak hp's. Again not entirely correct but I believe is a valid assumption as typically the TQ curves are just magnified when adding boost.


To add to my other post.

Time from 0-160
640hp = 12 s
550hp = 14.3 s
500hp = 15.85 s
450hp = 17.9 s
400hp = 20.5 s
350hp = 24.2 s
300hp = 29.7 s


Again just based on the math.

At speeds such as those weight really plays very little in determining power to overcome resistance at those speeds.

__________________
2007 Chevy Duramax - EFILive Tuned By Me
2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me
The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her
My Build --> http://www.the370z.com/members-370z-...39s-build.html

FPenvy

ok thats cool. i cant look at it since i'm at work and dropbox is blocked due to it being a online storage type and possible viruses etc...

__________________
324whp/258wtq AAM Tuned |F.I. NonRes CF CBE/NonRes TestPipes #373|UpRev Tuner|Akuma Motorsports Intakes|Z1 34 Row Oil Cooler

conmam

I think the best to do is to try it out and see the real result. Like I said before on my previous post: I paid a professional driver to test out my GT3 RS MK2 for absolute top speed. The car was bone stock and had only 450 hp at the engine. Indeed, the guy topped out at ~194 mph. Now, that GT3 weighed only 3022 lbs. However, I think, but I am not 100% positive, that my GT3 had a much better aerodynamic over this stock 370Z and that's why not much hp needed in order to get up there..... and it got up there pretty strong with not much struggle.

FPenvy

i think the GT3 is also .30 drag coefficient as well. and to be honest .30 isnt bad at all considering the GT-R is .26 and thats really good. the new lambo aventador is .33 DC so the Z is better than a lambo yea i said it lol

__________________
324whp/258wtq AAM Tuned |F.I. NonRes CF CBE/NonRes TestPipes #373|UpRev Tuner|Akuma Motorsports Intakes|Z1 34 Row Oil Cooler

Mitco39

The lambo is so bad because look at all that surface that the air brushes up against, haha.

__________________
2007 Chevy Duramax - EFILive Tuned By Me
2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me
The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her
My Build --> http://www.the370z.com/members-370z-...39s-build.html

Mitco39

A rough estimate (using the 370z gearing) shows it would top out right in the ballpark of 198-205 mph. This is assuming it has the same 0.30Cd.

__________________
2007 Chevy Duramax - EFILive Tuned By Me
2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me
The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her
My Build --> http://www.the370z.com/members-370z-...39s-build.html

theDreamer

Now can you do the math based on those power outputs & speeds and add distance to speed?

__________________
theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN
theDreamer's Silvia // URAS // GREDDY
Houston Zs // Facebook // Twitter // Instagram

Mitco39

** Mitco's Acceleration and Gearing Spreadsheet

__________________
2007 Chevy Duramax - EFILive Tuned By Me
2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me
The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her
My Build --> http://www.the370z.com/members-370z-...39s-build.html

conmam

Yes, But has anyone ever officially and practically tested any of these numbers ? I love to know.

Also, I assume that these are rear wheel horsepower that you are stating. I am looking for about 480 - 500 reliable whp for my future FI . I can only hope to get up to 193 mph for my Z at 500whp, then I will be so much happy.