Jump to content
SAU Community

Recommended Posts

bonnet's finally finished, it took two bonnet's to make. Cutting the induction hood out one and grafting it to the other. Kreative in windsor did all the welding work. dan's place (also in windsor) did the prep and painting (he also seem welded the some of hood again, the welder was worried about warping). it's a little warped on the front at the sides but a little persuasion on seans part seemed to fix that.

post-38774-1282645276_thumb.jpg

post-38774-1282644600_thumb.jpg

post-38774-1282644568_thumb.jpg

post-38774-1282643846_thumb.jpg

post-38774-1282643833_thumb.jpg

post-38774-1282643786_thumb.jpg

Edited by farch
  • 5 weeks later...

these pics are what the car looks like now with bonnet complete and engine bay pretty much complete as well. only thing left are new custom front sway bar and calibrate the speedo and put a converter in the dash to get the 4 banger tachometer to display a v8 signal correctly. then engineering!

post-38774-1285218802_thumb.jpg

post-38774-1285218843_thumb.jpg

post-38774-1285218876_thumb.jpg

post-38774-1285218902_thumb.jpg

if i had my way there would be no bonnet bulge at all. one day i might put a new intake manifold on it. runs pretty quiet when part at throttle, very unassuming until you put the hammer down then every knows whats in it. The noise coming from the engine is louder then the exhaust, a lot louder. I drove it down the road to try and get a pink slip for a unrego'd vehicle temporary license, and I'm quite amazed at the result. It's not a stupid amount of acceleration, its linear. speedo looks like tacho when accelerating from about 50km/hr in fifth gear, goes up faster then it feels. guess I've gotten used to boost. Sean thinks it'll go faster with taller diff gears to make better use of the torque cause it's currently got the tomei 2 way 4.363 from the ca18, might have to drop it to about 3.9.

Edited by farch

Thanks for the kind words!

Yeah, a lot of time and effort spent on it too!

Hows Canberra going for you?

Read a bit about you project on DRN motorcars folder too, and loved how people did not have a clue what engine you had!

hey guys

I was so impressed when i first heard about this, glad to see it has come together nicely! can't wait to see it around time and i better get an invite to the track if you end up going down for a few test laps! hehe.

been doing some research on my diff ratio. which is currently the ca18det manual trans ratio of 4.363 which means, assuming that 7000 rpm is my red line and the 300zx gear ratio's are:

1st 3.214

2nd 1.925

3rd 1.302

4th 1.000

5th 0.752

this should mean each gear maxes out at:

1st 60km/hr

2nd 100km/hr

3rd 146km/hr

4th 191 km/hr

5th 254km/hr

and at 100km/hr in 5th gear the rpm should be 2750rpm. (quite high for a v8)

or the other other option is using the ca18 auto trans diff ratio of 3.9 which is:

1st 66km/hr

2nd 111km/hr

3rd 164km/hr

4th 214km/hr

5th 285km/hr

and at 100km/hr in 5th gear the rpm should be 2500rpm.

worried if i go any lower in the ratio I'll loose out on too much acceleration.

or i use a 4.11 out of an sr20 s13:

1st 63km/hr

2nd 104km/hr

3rd 156km/hr

4th 203 km/hr

5th 270km/hr

and at 100km/hr in 5th gear the rpm should be 2600rpm.

I'm thinking the 4.11's what does everyone think?

unfortunately those calculations you made dont factor in aerodynamic drag the car has to overcome.

Either way, my hat goes off to you boys. I been following this and its very very impressive!

Whats the plan for the car? What will be its duties? That will influence diff choice too.

Id be waiting till you get wider rubber then see how traction is before you go changing diffs

  • 3 weeks later...
unfortunately those calculations you made dont factor in aerodynamic drag the car has to overcome.

Either way, my hat goes off to you boys. I been following this and its very very impressive!

Whats the plan for the car? What will be its duties? That will influence diff choice too.

Id be waiting till you get wider rubber then see how traction is before you go changing diffs

drag is a factor of the power needed to overcome it, the ratio tells me with enough power what maximum speed the car is capable of. the main point of it is to calculate the cruising rpm of highway driving.

the plan for the car is mainly street performance will see the odd track day and drag strip. hence the Na con-fig and 5 speed manual. the diff ratio will probably end up as 3.9 to get the best out cruising and acceleration with out too many draw backs in either one.

by the way the custom front sway bar is fitted, same diameter as the white-line adjustable that it replaces.

Awesome build! that bonnet kind of makes it look like an old 300zx..

As far as diff ratios go..

I did something similar with the RB30DET, it didn't rev it as much so lost speed in each gear (made me slower than a stock RB20).

Going from 4.3 to 3.9 made better use of the abundance of torque and while being a bit less brutal, it was much nicer to drive.

  • 2 weeks later...

looks awesome but dont change the diff, if you are spinning the wheels just get some semi slicks and youll never look back, the lower the diff ratios the better as it = more tractive torque at the wheels at pretty much every speed.

engine noise is very loud, doesn't sound normal, my mate has a vh41 that wasn't anywhere near that loud, is it possible the valve train is all gummed up with oil?

Edited by Rolls

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • For these last 7 years of ownership, I've always had to use a small scissor jack under one of the front tow hooks to raise the front just enough so my low-profile jack fits under to reach my subframe jack point. I'm beginning to get annoyed of always having to do this. Are there any lower low-profile jacks that fit under the gtr lip on a dropped car?
    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
×
×
  • Create New...