BGTV8 VQ40HRGA Race engine build

Elmo370z · 01-18-2019, 03:45 PM

Yes updates

Rusty · 01-18-2019, 03:51 PM

Quote:

Originally Posted by Elmo370z

Yes updates

His wife might have shot him by now.

AlWakRa · 01-18-2019, 06:40 PM

I want to hear some engine noise

BGTV8 · 01-20-2019, 02:54 PM

Nope ... M150 has been running the car for a while (OEM engine but no sequential box yet though).

Car is being stripped for a cage and new engine and sequential box should be in during March.

Lots of other sh1t happening as well .... my old race car suffered a small detonation moment at Winton Festival of Sports Cars in August and broke a ring land/ring so that engine had to be re-linered and a couple of new pistons ..... and then we took the opportunity to grind a new cam and those who understand will get the rest - more lift equals more head-work and piston fly-cuts to make it all work.

I really should baseline the old race car and stop spending money on it and finish the Zed.

Rusty · 01-20-2019, 03:40 PM

Thought maybe the wifey got tired of it all. And thrown you off a bridge with the motor as a weight.

Rusty · 03-21-2019, 07:33 PM

Hey BG, is this the motor you're using?

Spooler · 03-21-2019, 09:14 PM

I want an M150 too. Would love to hear your feedback.

BGTV8 · 03-22-2019, 02:27 AM

Quote:

Originally Posted by Rusty

Hey BG, is this the motor you're using?

94mm stroke rather than 96 and I will be running E85 but same heads, cams but slightly lower CR and everything else similar apart from 1.75" primaries on the exhaust. We have the mandrels for 2" primaries though.

Cage is prety much done, needs inspection from Scrutineer and final engineering signoff before was can fix the cage certification they blow paint over the internals and it all start to come together.

1slow370 · 03-23-2019, 11:44 PM

Like the same heads? I know jwt did quite a bit to those heads beyond a port and polish. I have begun the process of working with them on a special engine for my s30.

BGTV8 · 03-27-2019, 05:23 AM

We all started with HR heads from a late model 350Z.

Sasha's new engine had significantly more machining for valve buckets that mine and Clark's airflow figures are a tad higher than mine, so I don't expect to get to >500.

We should get close to 500 and I'll be well pleased with 480-490 and over the moon is we do see 500 or 501, but we give away 2mm of stroke and 1.5 points of compression (but we are using E85).

Knowing what is known now, Clark has done done an outstanding job of work with this engine.

1slow370 · 03-30-2019, 08:38 PM

Thats what i was wondering, i didnt know if you bought the jwt big lifter race heads that they do? But arent on their website.

1slow370 · 03-30-2019, 08:42 PM

What cam are you running, c12's? Kelford?

BGTV8 · 06-15-2019, 03:57 AM

Quote:

Originally Posted by 1slow370

What cam are you running, c12's? Kelford?

I am running the C12/RZ1 combo and our own CNC porting on HR heads - remember this project actually started 4 years ago ........

I have a Quaife 69G sequential (ratios are 2.759, 2.05, 1.565, 1.268, 1.116 and 1.000 to 1) to go behind the engine with an OS Giken clutch. I have 3.9 and 4.08 FD ratio's. The MOTEC manages flat-shift on the up-change (strain gauge in the shifter) and when we get the ITB's controlled by the Jenvey DBW motors, I'll put paddles on the steering wheel and we'll go auto-blip on down-shift and rev-match on up-shift.

BGTV8 · 06-15-2019, 04:00 AM

And this just arrived yesterday .....

Rusty · 06-15-2019, 02:39 PM

Someone just bought the SPL catalog.

01-18-2019, 03:45 PM	#91 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,709 Drives: 09 nissan 370z Sp M6 Rep Power: 295378	Yes updates cv129 likes this.

01-18-2019, 06:40 PM	#93 (permalink)
AlWakRa Track Member Join Date: Oct 2010 Location: Qatar Posts: 600 Drives: 10 370Z PW 6MT Rep Power: 13450	I want to hear some engine noise __________________ 2010 370Z Touring Sport Pearl White 6MT Powered by: Fast Intentions - Motordyne - Stillen - OS Giken - CJ Motorsports - Mishimoto - MCA Suspension - SPL - SuperPRO - RJM - Z1 Motorsport - Zspeed - Volk My Humble Journals

01-20-2019, 02:54 PM	#94 (permalink)
BGTV8 A True Z Fanatic Join Date: Dec 2009 Location: 03350 Australia Posts: 1,514 Drives: 09 Nissan 370Z M6 Rep Power: 39974	Nope ... M150 has been running the car for a while (OEM engine but no sequential box yet though). Car is being stripped for a cage and new engine and sequential box should be in during March. Lots of other sh1t happening as well .... my old race car suffered a small detonation moment at Winton Festival of Sports Cars in August and broke a ring land/ring so that engine had to be re-linered and a couple of new pistons ..... and then we took the opportunity to grind a new cam and those who understand will get the rest - more lift equals more head-work and piston fly-cuts to make it all work. I really should baseline the old race car and stop spending money on it and finish the Zed. JARblue, Rusty, Hotrodz and 3 others like this.

01-20-2019, 03:40 PM	#95 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,219 Drives: 2011 Nismo GM 6M Rep Power: 2684438	Thought maybe the wifey got tired of it all. And thrown you off a bridge with the motor as a weight. BGTV8, beauz, Hotrodz and 2 others like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

03-21-2019, 07:33 PM	#96 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,219 Drives: 2011 Nismo GM 6M Rep Power: 2684438	Hey BG, is this the motor you're using? sirnixalot likes this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

03-21-2019, 09:14 PM	#97 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,834 Drives: 2013 Nismo 370z Rep Power: 2684392	I want an M150 too. Would love to hear your feedback.

03-23-2019, 11:44 PM	#99 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	Like the same heads? I know jwt did quite a bit to those heads beyond a port and polish. I have begun the process of working with them on a special engine for my s30. Elmo370z and Memphis370Z like this. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

03-27-2019, 05:23 AM	#100 (permalink)
BGTV8 A True Z Fanatic Join Date: Dec 2009 Location: 03350 Australia Posts: 1,514 Drives: 09 Nissan 370Z M6 Rep Power: 39974	We all started with HR heads from a late model 350Z. Sasha's new engine had significantly more machining for valve buckets that mine and Clark's airflow figures are a tad higher than mine, so I don't expect to get to >500. We should get close to 500 and I'll be well pleased with 480-490 and over the moon is we do see 500 or 501, but we give away 2mm of stroke and 1.5 points of compression (but we are using E85). Knowing what is known now, Clark has done done an outstanding job of work with this engine. Rusty, Elmo370z, Spooler and 2 others like this.

03-30-2019, 08:38 PM	#101 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	Thats what i was wondering, i didnt know if you bought the jwt big lifter race heads that they do? But arent on their website. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

03-30-2019, 08:42 PM	#102 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	What cam are you running, c12's? Kelford? __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

06-15-2019, 02:39 PM	#105 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,219 Drives: 2011 Nismo GM 6M Rep Power: 2684438	Someone just bought the SPL catalog. milmast likes this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

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