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S30 track car / HR swap


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#41 duragg

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Posted 20 September 2016 - 06:01 AM

They are McKinney Motorsport Headers and I think they are $1800ish. Makes for a tight fit.

There would be no shame in using the stock headers with adjusted outlet angle.

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1973 S30 (Gutted & caged NASA ST3) 2252lbs (dry & vacant) / VQ35HR/ 4.375 CLSD R200 / GC-Koni doubles / 275 R7s / Safety is a priority.


#42 Thanh

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Posted 10 October 2016 - 10:12 AM

They are McKinney Motorsport Headers and I think they are $1800ish. Makes for a tight fit.

There would be no shame in using the stock headers with adjusted outlet angle.

Do you feel a major difference from the stock headers or did you always run this setup from the beginning?


Edited by Thanh, 10 October 2016 - 10:13 AM.

1973 240Z resurrection in progress 60%?

#43 duragg

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Posted 16 October 2016 - 11:33 AM

One year after VQ swap I am on Pole Position.

My 1973 240Z with VQ swap is on pole for the Big Bore Race today at 1:50 Buttonwillow, CA

Watch live: https://nasachampion...com/west-event/

Datsun style!
I will lose 20 positions on the first 2 laps but I am here!!

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1973 S30 (Gutted & caged NASA ST3) 2252lbs (dry & vacant) / VQ35HR/ 4.375 CLSD R200 / GC-Koni doubles / 275 R7s / Safety is a priority.


#44 clarkspeed

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Posted 16 October 2016 - 02:24 PM

Awesome!
74 260Z Vintage Race Car - 2.8L, 12:1 Comp, SDS EFI, TWM ITB's, AZC Brakes

"If you are under control you're going too slow" - Parnelli Jones

#45 duragg

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Posted 13 November 2016 - 07:23 PM

Note for the database.

 

The G35 ECU for Vq35HR will not talk to an AIM Dash or AIM SOLODL datalogger.

You need the 350Z ECU to talk to AIM products. 

 

No biggie, unless you spend a whole day trying to convince them to work.

 

Tom


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1973 S30 (Gutted & caged NASA ST3) 2252lbs (dry & vacant) / VQ35HR/ 4.375 CLSD R200 / GC-Koni doubles / 275 R7s / Safety is a priority.


#46 duragg

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Posted 20 January 2017 - 03:36 PM

Went back to the dyno with the new ECU which now talks to the AIM Solo track data system. On a mild safe tune we got to 309 whp or so on the Dynapak at UMS Tuning.

But since my classing legal max is about 240whp we made another tune where the power is reduced as soon at 240whp is achieved (5000rpm) and then it's a flat 240hp to redline.

The next day it went to a facility with a Dynojet to get the required classing dyno check and the numbers were a direct match.

So... $500 bucks later I went from 309hp to 240hp and I was happy. Funny how the world works

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1973 S30 (Gutted & caged NASA ST3) 2252lbs (dry & vacant) / VQ35HR/ 4.375 CLSD R200 / GC-Koni doubles / 275 R7s / Safety is a priority.


#47 gnosez

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Posted 20 January 2017 - 09:37 PM

I like a track without walls, trees or Armco. Looks like a lot of fun.

 

How are you liking the 4.375 diff?

 

What I could see from the track website, it looked like the straights were long enough so that you could top out in all but 5th pretty quick.


"you're only young once, but you can stay immature indefinitely"

#48 duragg

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Posted 4 weeks ago

4.375 is fine, but I went with a taller tire to adjust the RPMs a little. I made a lockout for 1st and 2nd so I only race in 3, 4, 5 & 6th.

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1973 S30 (Gutted & caged NASA ST3) 2252lbs (dry & vacant) / VQ35HR/ 4.375 CLSD R200 / GC-Koni doubles / 275 R7s / Safety is a priority.


#49 gnosez

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Posted 4 weeks ago

The most I can run is a 23" tall tire so I swap out either the 4.44 or 4.375 which we run on short/hilly tracks to the 4.11 for longs ones like The Glen.  Engine makes power between 4000-6700rpm so I can do a major portion of the smaller tracks in third that have short straights leading into slow corners.

 

Haven't had the car on the dyno in a while but we estimating about the 220-240rwhp & similar torque numbers @2209 lbs wet, no driver.


Edited by gnosez, 4 weeks ago.

"you're only young once, but you can stay immature indefinitely"




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