Nissan 370Z Forum  

Fast Intentions Stage 2 TT build by MA-Motorsports.

Originally Posted by Spooler The biggest reason for me using these cams was stated in the thread about them. He stated that he doesn't have to downshift to pass a

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Forced Induction


Like Tree16394Likes

Reply
 
LinkBack Thread Tools Display Modes
Old 12-15-2018, 10:18 PM   #436 (permalink)
Base Member
 
URBiN~HURMiT's Avatar
 
Join Date: Jul 2017
Location: Northern New Jersey
Posts: 156
Drives: 2009 370z 6MT
Rep Power: 4620
URBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond repute
Default

Quote:
Originally Posted by Spooler View Post
The biggest reason for me using these cams was stated in the thread about them. He stated that he doesn't have to downshift to pass a car. This to me was an eye opener. The one thing I can't stand about the power deliver of my car is it is flat between 2500 to 4000 rpm.
The N/A stock motors do go flat between 2500 and 4000 rpm ... You can definitely tune that out when you go boosted.
__________________
- -Z&I ~~~~
URBiN~HURMiT is offline   Reply With Quote
Old 12-15-2018, 10:27 PM   #437 (permalink)
A True Z Fanatic
 
Join Date: Jun 2014
Location: Ga
Posts: 13,467
Drives: 2013 Nismo 370z
Rep Power: 2684390
Spooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond repute
Default

I think the JWT C2 cams are better for us. My understanding the guy had FI 3.5 turbo's. I would have used the JWT C1 cams on that engine. You can see the torque curve in the video. It's flat and comes on hard down low. Too much for my liking. He will struggle with traction down low for sure. Looking at your graphs the 3.357 is the reason your dyno graphs read low. Doesn't matter if the car is not in the correct rpm range for the quarter mile. The less shifting is also better for 1/4 mile. A 3.5 diff would be better for you I beat. MA can fix that up for you also with a quick change diff and custom subframe. LOL
Spooler is offline   Reply With Quote
Old 12-15-2018, 10:37 PM   #438 (permalink)
A True Z Fanatic
 
Join Date: Jun 2014
Location: Ga
Posts: 13,467
Drives: 2013 Nismo 370z
Rep Power: 2684390
Spooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond repute
Default

The machine shop is working on my engine now. They were honing the cylinders Tuesday last week. Hopefully it will be done by the end of the month. I don't want to travel up that way until after New Years anyway. Way too many people on the road. I will do it if they call and want the car.
Rusty, Hotrodz, jchammond and 1 others like this.
Spooler is offline   Reply With Quote
Old 12-15-2018, 10:58 PM   #439 (permalink)
A True Z Fanatic
 
Join Date: Jun 2014
Location: Ga
Posts: 13,467
Drives: 2013 Nismo 370z
Rep Power: 2684390
Spooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond repute
Default

My worry is the weather. MA likes to drive test them on the road to double check the tune, etc. This will be a challenge in the dead of winter. Finding good days to do so will be tough.
Spooler is offline   Reply With Quote
Old 12-16-2018, 01:44 PM   #440 (permalink)
Base Member
 
URBiN~HURMiT's Avatar
 
Join Date: Jul 2017
Location: Northern New Jersey
Posts: 156
Drives: 2009 370z 6MT
Rep Power: 4620
URBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond repute
Default

Quote:
Originally Posted by Spooler View Post
I think the JWT C2 cams are better for us. My understanding the guy had FI 3.5 turbo's. I would have used the JWT C1 cams on that engine. You can see the torque curve in the video. It's flat and comes on hard down low. Too much for my liking. He will struggle with traction down low for sure. Looking at your graphs the 3.357 is the reason your dyno graphs read low. Doesn't matter if the car is not in the correct rpm range for the quarter mile. The less shifting is also better for 1/4 mile. A 3.5 diff would be better for you I beat. MA can fix that up for you also with a quick change diff and custom subframe. LOL
This build is all new territory for me and I've been making decisions these past 5 years based on research and the technology available at the time.
Tried my best, but it's still an educated guess tho'.

I did consider the 3.5 FD (from the 350z) but it was too close to the 3.692 OEM gears in the car... so I went with the 3.357.
As it was - the OEM 3.692 gears were just about useless launching the car.

I did check out that video you posted earlier - looks like Dynosty did a great job on the build and tune.
One of the things I look back on and regret a little is not going with the 10:1CR.
I had 9.5:1 in the IPP built motor that AAM managed to grenade.
Daelen talked me into going back to the OEM 11:1 CR for their build.
Right now I'm going to live with what I have - been way too long as it is.

The DynoLog Sheet does show a hump in the Torque curve at 4300 rpm, and flat spot in the neighborhood of 5000 rpm.
Will have to see how that works out in real life.
I'm sure/hopng it can be corrected if needed.
__________________
- -Z&I ~~~~
URBiN~HURMiT is offline   Reply With Quote
Old 12-16-2018, 01:50 PM   #441 (permalink)
A True Z Fanatic
 
Join Date: Jun 2014
Location: Ga
Posts: 13,467
Drives: 2013 Nismo 370z
Rep Power: 2684390
Spooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond repute
Default

11:1 is where you want to be. I wouldn't build a 10:1 engine. No need to with the tuning/fuel we have today. That is old school thinking. Your rear gears are going to move the torque curve up. If you had the 3.69 gears it would be at 4000 rpm. A flat torque curve is what you want. You also have to note the mainline dyno is going to show lower than the dynojet that was used in the video. I think you are fine. Get it on the drag strip and see how it does. That is the real proof.
Hotrodz and URBiN~HURMiT like this.

Last edited by Spooler; 12-16-2018 at 01:59 PM.
Spooler is offline   Reply With Quote
Old 12-17-2018, 01:53 PM   #442 (permalink)
Enthusiast Member
 
Join Date: Feb 2014
Location: Houston
Posts: 254
Drives: Race, Repair, Repeat
Rep Power: 4638
tonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond repute
Default

Quote:
Originally Posted by Spooler View Post
I think the JWT C2 cams are better for us. My understanding the guy had FI 3.5 turbo's. I would have used the JWT C1 cams on that engine.
From my understanding the bigger the overlap the higher the back pressure, which should cause spool to be sooner.

I would put the more aggressive cams on the bigger turbo setup - meaning I would use the C2 Cams with the 3.5 Turbos.

Small turbine = less overlap. Large turbine = more overlap.
__________________
2007 G37S [VQ37HR] Sedan 6MT - Fast Intentions Stage 3 TT - @ttv36 #tptoons
tonyHTX is offline   Reply With Quote
Old 12-17-2018, 06:56 PM   #443 (permalink)
A True Z Fanatic
 
Join Date: Jun 2014
Location: Ga
Posts: 13,467
Drives: 2013 Nismo 370z
Rep Power: 2684390
Spooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond repute
Default

Quote:
Originally Posted by tonyHTX View Post
From my understanding the bigger the overlap the higher the back pressure, which should cause spool to be sooner.

I would put the more aggressive cams on the bigger turbo setup - meaning I would use the C2 Cams with the 3.5 Turbos.

Small turbine = less overlap. Large turbine = more overlap.
It all depends on where you want to move the power under the curve.
tonyHTX and URBiN~HURMiT like this.
Spooler is offline   Reply With Quote
Old 12-17-2018, 07:41 PM   #444 (permalink)
Track Member
 
Join Date: Oct 2014
Location: Orlando, Florida
Posts: 694
Drives: 15' Nismo Black 6MT
Rep Power: 10080
solidus has a reputation beyond reputesolidus has a reputation beyond reputesolidus has a reputation beyond reputesolidus has a reputation beyond reputesolidus has a reputation beyond reputesolidus has a reputation beyond reputesolidus has a reputation beyond reputesolidus has a reputation beyond reputesolidus has a reputation beyond reputesolidus has a reputation beyond reputesolidus has a reputation beyond repute
Default

Spooler this is very interesting. You're pretty much talking about my build. I went 10:1 with the C2 cams and a bigger turbo. Still tuning it now with Seb but you're absolutely correct with the Cams helping with spool.The 6870 spools faster than the 6266 did by a long shot. Also if I WOT in 6th gear cruising 70 I'll hit 12psi before it hits 4500rpm. I had a problem with traction for 3rd gear WOT logs but switching to R888R's solved that in short order. Just moving on to E85 on Map 1 so pretty soon we'll see how it handles boost and E85. I don't think I'll be done tuning for a bit but as soon as I amI'll be throwing it on some rollers to see where it sits. I've guessed at 800rwhp but after feeling the hits ridiculous boost I'll be content with a 750 on corn and leave it where it sits.
Rusty, Hotrodz, Spooler and 1 others like this.
solidus is offline   Reply With Quote
Old 12-17-2018, 08:44 PM   #445 (permalink)
Base Member
 
URBiN~HURMiT's Avatar
 
Join Date: Jul 2017
Location: Northern New Jersey
Posts: 156
Drives: 2009 370z 6MT
Rep Power: 4620
URBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond reputeURBiN~HURMiT has a reputation beyond repute
Default

Interesting reading these last posts from you guys ...
I've test driven the car twice now on local roads - When the motor was 10:1 with no cam the torque came on real quick and was flat out to red line. With only a little goose on the throttle and into 3rd gear it wanted to spin the huge M/T's.
It would have been nice if the motor held together.

With the MA-M 11:1 and the JW2 cams it didn't seem that 'touchy' on the throttle.
Both test drives didn't go WOT or over 40mph but I felt the power want to come on.
Brian at MA-M did a short test drive before handing the key over to me.
I heard him lean on it when he got it on to the street in front of the shop.
It sounded good but I didn't get to see it accelerate.

The 71/63's did spool quickly.

Got an email from MA-M today and they are anxious to finish up the build.
Waiting on the 6 point Roll Bar from RPM Rollbars.
Still planning to winter it down there since the weather gets ugly up here in N.J.
The car would only be sitting till spring anyway.
Rusty likes this.
__________________
- -Z&I ~~~~
URBiN~HURMiT is offline   Reply With Quote
Old 12-17-2018, 10:35 PM   #446 (permalink)
A True Z Fanatic
 
Join Date: Jun 2014
Location: Ga
Posts: 13,467
Drives: 2013 Nismo 370z
Rep Power: 2684390
Spooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond repute
Default

Quote:
Originally Posted by URBiN~HURMiT View Post

Got an email from MA-M today and they are anxious to finish up the build.
Waiting on the 6 point Roll Bar from RPM Rollbars.
Still planning to winter it down there since the weather gets ugly up here in N.J.
The car would only be sitting till spring anyway.
I am sure they are wanting to have it completed. I have had cars sit at the shop for a while myself and the day they leave is a good day. I was glad to see them up and running and on their way. My understanding is they have a lot less space as they did before.
URBiN~HURMiT likes this.
Spooler is offline   Reply With Quote
Old 12-17-2018, 10:52 PM   #447 (permalink)
A True Z Fanatic
 
Join Date: Jun 2014
Location: Ga
Posts: 13,467
Drives: 2013 Nismo 370z
Rep Power: 2684390
Spooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond repute
Default

Quote:
Originally Posted by solidus View Post
Spooler this is very interesting. You're pretty much talking about my build. I went 10:1 with the C2 cams and a bigger turbo. Still tuning it now with Seb but you're absolutely correct with the Cams helping with spool.The 6870 spools faster than the 6266 did by a long shot. Also if I WOT in 6th gear cruising 70 I'll hit 12psi before it hits 4500rpm. I had a problem with traction for 3rd gear WOT logs but switching to R888R's solved that in short order. Just moving on to E85 on Map 1 so pretty soon we'll see how it handles boost and E85. I don't think I'll be done tuning for a bit but as soon as I amI'll be throwing it on some rollers to see where it sits. I've guessed at 800rwhp but after feeling the hits ridiculous boost I'll be content with a 750 on corn and leave it where it sits.
I have experience with this playing with my 04' 5.9 Cummins dually. Swapping turbo's and trialing 2 different cams for Hamilton Cams. It is a little different but still the same.
jchammond likes this.
Spooler is offline   Reply With Quote
Old 12-18-2018, 08:54 AM   #448 (permalink)
Enthusiast Member
 
Join Date: Feb 2014
Location: Houston
Posts: 254
Drives: Race, Repair, Repeat
Rep Power: 4638
tonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond repute
Default

Quote:
Originally Posted by Spooler View Post
It all depends on where you want to move the power under the curve.
True, the Z has a shorter wheel base so I can see why you're saying you'd want the spool to move.

Did you ever mention which Xonas you ended up getting?
__________________
2007 G37S [VQ37HR] Sedan 6MT - Fast Intentions Stage 3 TT - @ttv36 #tptoons

Last edited by tonyHTX; 12-18-2018 at 08:57 AM.
tonyHTX is offline   Reply With Quote
Old 12-18-2018, 09:44 AM   #449 (permalink)
A True Z Fanatic
 
Join Date: Jun 2014
Location: Ga
Posts: 13,467
Drives: 2013 Nismo 370z
Rep Power: 2684390
Spooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond repute
Default

Quote:
Originally Posted by tonyHTX View Post
True, the Z has a shorter wheel base so I can see why you're saying you'd want the spool to move.

Did you ever mention which Xonas you ended up getting?
They are the FI 2.5's. They are a GT30 frame turbo. I don't remember the Xona numbers off the top of my head. They are a custom Xona turbo.
Hotrodz and tonyHTX like this.
Spooler is offline   Reply With Quote
Old 12-18-2018, 10:07 AM   #450 (permalink)
Enthusiast Member
 
Join Date: Feb 2014
Location: Houston
Posts: 254
Drives: Race, Repair, Repeat
Rep Power: 4638
tonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond reputetonyHTX has a reputation beyond repute
Default

Quote:
Originally Posted by Spooler View Post
They are the FI 2.5's. They are a GT30 frame turbo. I don't remember the Xona numbers off the top of my head. They are a custom Xona turbo.
Always good to have a little more headroom!
__________________
2007 G37S [VQ37HR] Sedan 6MT - Fast Intentions Stage 3 TT - @ttv36 #tptoons
tonyHTX is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[FOR SALE] Fast Intentions Stage 2 Twin Turbo Kit Nik@SOHO Parts for sale (Private Classifieds) 60 10-09-2017 08:11 AM
370Z For Sale 2015 Nismo Tech with Fast Intentions Stage 2 637HP DPE G 370Z For Sale 2 06-03-2017 11:40 AM
MA Motorsports: FAST Intentions | HKS | APEXi | TANABE MAMotorsports Exhaust/Intake 46 05-23-2016 11:12 AM
My 09 NISMO Fast Intentions TT Build katjmmx Forced Induction 142 05-19-2016 02:32 PM
[FOR SALE] Fast Intentions Exhaust Build #952 Placement NismoZ70 Parts for sale (Private Classifieds) 11 03-19-2014 09:27 AM


All times are GMT -5. The time now is 12:36 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2