wow if there was no ambulance in the middle it would be a sub 8 sec lap

 

Looking good so far.. Keep it up

 

The fastest I ever managed in the RX-7 was a 8:27, It went through a differential bearing set for every 2 hours on the track. I later found out it was involved in a side impact from the previous owner and the frame was just ever so slightly out of line which I think was a big part of the issues with that particular car.

Update for today:

The exhaust is done!


I had to hack and weld the cats to mount near oem Z exhaust locations so I could use any off the shelf Z exhaust by putting on V-band flanges.



I was fairly happy with myself on this considering I have not touched a welder other that to just dick around. They started out not so pretty but by then end I was happy with the welds on the mild steel... I havent quite figured out the SS welding settings yet so those are still uuuuugly.

Here is the last piece to the cooling system. I'm using an 08 Z rad which has no cap or vent so I had to plumb in this surge tank. all in all I think it worked out. I will likely change it out later when I buy a quality dual pass rad with slim line fans and a proper radiator cap.

 

looking good, what tires are those under the front bumper?

did you check for exhaust leaks?

 

The front set are pilot super sports on weds tc105N's and the others are toyo r888 275 front 285 rears mounted on my track wheels.

 

What is the inner diameter of the exhaust piping? I'm getting rid of my HKS tru dual, due to the fact that it's 2.25 and they recommend 3in for proper flow for the LS displacement.

After much research on LS1tech, I decided to go with Fueled Racing long tube headers to 3in pipes to x-pipe to 3in pipes to Borla XR1s.

 

I don't think 3 inch is necessary, 2.5-2.75 would be better.

BUT I 100% agree 2.25 is too small. My 6.4 has 2.75 under it

 

I rather have a more open exhaust and lose velocity than an exhaust that produced back pressure(N/A cars)

 

Its 2.5 inches back on each side which is the same diameter as my cat pipes. Previous to this I ran a 2.5in to 4 inch y pipe and had good power. The NA LS cars seem to like between 2.5 and 3 inch, but it all depends what your short or long tubes dump into, IE 2.5 to 2.5 or 3 inch to 3 inch.

 

updates?

 

Sorry for the lack of updates. The car is moving under its own power! even if its only in and out of the workshop. I'll catch up on the write ups tomorrow or monday.

 

op, update never came?

 

Sorry for the delay in updates, work has been hell. Like I said last time, the car is driving under its own power and sounds awesome. I'll get that video up here soon. So I decided I wasn't happy with a couple things and ripped back into the car. Since the car will be used on the track I figured I should better sort out the fuel system. So.. a surge tank is in order.

A bosch 044 pump submerged in a 1 liter catch tank fed by a DW300 in tank lifter pump. the DW pump would have likely sufficed for the 500 whp NA end goal I have, but I figured a slight overbuild here wouldn't be to bad.



Its currently installed under the rear trim.

Next, because of the speed hut gauges I chose for the main cluster, I didn't have a working gauge for water temps or oil psi. to fix that I ripped out the center console and installed them there, here is the mock up.


To do this you've got to remove and hack up the triple gauge cluster, its not a huge hassle and took all of 15 minutes.



I kept the multigauge since I liked the timer and the speed on it will work for the 30 seconds the GPS speedo takes to align.

all together..

 

Congrats on the progress, sir. Looks beastly

 

thanks for the words , although I'm at an odd cross road right now. on one hand I am always finding something I want to improve or fix but on the other, I really want this car to be on the street and track where it belongs.

 

Do you have any suspension upgrades? I would do at least Hotchkis/Whiteline sway bars before taking it out to the track since the body roll will already be pretty substantial with the added weight and stock suspension

 

its got the factory Nismo setup, The 2 motors are only about 45 lbs apart (includes all accesories and intakes/ Cats) with the LS sitting a full 3 inches or more lower than the VQ. The motor is also further aft than the VQ so I am willing to bet its will be very close wieght wise to a low rear mount TT kitted Z.

I do have plans to do a complete suspension overhaul over the winter, for now its was mostly bushings replaced with whiteline bushings.

 

Then take it out!!!

 

I tried getting a quick video at night so you can see the gauges but it came out a little too small. I'll try to get a better one, Also the sound did not come out so good.

https://www.youtube.com/watch?v=ieBz...ature=youtu.be

 

sounds nicccee