Jump to content

Build Diary: Westfield SEiynergy - how much power is too much power?


gee_fin
 Share

Recommended Posts

I can't wait for this....!

  • Like 2
Link to comment
Share on other sites

Starting with the most important thing - the steering wheel! I don't know, I just have such a fetish for the intricacy of these, always chasing that practical F1 wheel...

Anyways, I built my last few, but time to face facts - I completely suck at wiring. I'm just rubbish at it, totally dyslexic at making it look right and work consistently reliably. So, as this build is going all-out, I got in contact with the guys over at Fi Tech, they make some truly gorgeous wheels. Some discussion later, settled on a Momo Mod 11, 280mm, using the Rapfix boss with the Rapfix electrical quick-release (needed 12 channels for this wheel, so couldn't go with the Freewheel :'().

We'll be going with the AP clutch release cylinder wired into the ECU so time to get some funky clutch paddles on the wheel ala the one below -

wheel_design_2.thumb.jpg.cb114c2ca52ce7c957271caa9e8b09de.jpg

Then the usual steering wheel buttons for launch/traction, line lock, dash control and up/down paddles. Great company to deal with, they Skype'd/TeamViewer'd me into a live design session to ensure the housing and positions of buttons were all correct and as desired!

wheel_design_1.thumb.jpg.66f83a56e9dee5580d90a085b1b8f657.jpg

  • Like 1
Link to comment
Share on other sites

following with interest

For drag racing I would like an LS9 with torque tube mated to a transaxle.  Basically ZR1 running gear in a Westfield

  • Like 1
Link to comment
Share on other sites

Funnily enough, looked into the yank V8 route, even towards Indycar engines (various 2nd hand ones for sale for reasonable money) but just couldn't bring myself to do it. not my cup of (insani)tea :d

Snagged the gearbox last week. Was looking to Sadev, Drenth or Tractive, particularly keen on the Tractive but a nice fresh Quaife 69G came up. It's their heavy duty straight-cut sequential dog box (6 speed), should be able to handle the power. Handily comes with the Motec/Hollinger paddle mechanism so that saves a bit. Have to think about where to mount the oil cooler for it now...

464176.thumb.jpg.f3843ffda92fa8fcaac2c5165279844a.jpg

Link to comment
Share on other sites

How much of the BHP do you think will be useable on such a lightweight car? I'm building a 1400cc Supercharged Hayabusa at the moment (well Luke at Playskool is finishing it off for me) but I've had been told on a few occasions now and read on various forums also that 350-400bhp is too much for such a light car and that it's wasted money. Personally, I just want something to scare me and hopefully not try to kill me when I drive it.  750bhp will be nuts!

  • Like 1
Link to comment
Share on other sites

4 minutes ago, Deanspoors said:

How much of the BHP do you think will be useable on such a lightweight car? I'm building a 1400cc Supercharged Hayabusa at the moment (well Luke at Playskool is finishing it off for me) but I've had been told on a few occasions now and read on various forums also that 350-400bhp is too much for such a light car and that it's wasted money. Personally, I just want something to scare me and hopefully not try to kill me when I drive it.  750bhp will be nuts!

My original turbo Busa with 350bhp is near unusable on the roads out here - gets wheelspin in 4th with the traction off (the roads here are very slippy though). So as a road car, anything over about 300bhp/tonne is completely pointless from the point of view of exploiting it on the road. Always nice to have what feels like a nuclear weapon under your right foot even if you don't get to exploit it...

On track, the quickest cars to me are still a proper Duratec with a decent Sadev all setup solidly with good suspension - 500-600bhp/tonne on slicks. However, we're going for drag and complete insanity, don't really care about getting to use it all out on the road.

The MegaWatt is ~1200bhp/tonne, with better rubber it's putting nearly a second on my 700bhp/tonne in the 1/8th alone. It however is losing another 0.4s to the leading Evos (all be it they are killing us out of the hole currently). But, the fastest drag cars in the world are all 2WD, not 4WD... so just a case of getting that formula right...

Part of the fun of this project will be finding a way to get the chassis to take the power, but also figuring out the mapping/tuning to make as much of the power usable as possible. Will be doing fancy things with boost by gear, traction and G sensors and likely going to 12" drag slicks on the back for drag. Will be F3 slicks all round for track work. On the road, likely a map to give 1/2 or a 1/3rd of the power!

  • Like 1
Link to comment
Share on other sites

What a great project, looking forward to reading this as you progress. I have 400bhp/400lb-ft in mine, and it is far from unusable. Traction limited for sure, but that will be the fun part to improve that over time.

Very keen to hear what you will do diff wise. The big torque diffs all look like a packaging nightmare to me.

Martin. 

Ps: very envious of your 69g. Love a  it of gearbox porn. 

  • Like 1
Link to comment
Share on other sites

Now stop being coy, whats the engine?

  • Like 1
Link to comment
Share on other sites

Cool, looking forward to this...How about 4WD? Electric power on the front, petrol for the rears....Hybrid Westie!

  • Like 1
Link to comment
Share on other sites

On 5/9/2017 at 05:45, Martin#30 said:

Very keen to hear what you will do diff wise. The big torque diffs all look like a packaging nightmare to me.

 

Still in discussion somewhat and likely going under the guidance of Plays-Kool 100% for this one. The Sierra 7" diff with the Quaife ATB internals in the MegaWatt have held up very well so far, even with the big launches on drag slicks and immense torque, however, that's just one gear. Luke seems keen on the Subaru rear end route, BMW is another potential option. Either way, it needs something to handle north of 700bhp through all the gears...

In discussion with Siltech about a beefed up micro-adjustable rear end as well, as would like larger rose joints/mountings on the wishbones.

Link to comment
Share on other sites

V8 (2 x busa's a la atom v8)? Or as the name seiynergy maybe suggests petrol/electric hybrid and you've got your mad electric mate building in some motors?

Must be something lightish to get the pwr to weight?

  • Like 1
Link to comment
Share on other sites

3 minutes ago, David_Thame said:

Cool, looking forward to this...How about 4WD? Electric power on the front, petrol for the rears....Hybrid Westie!

Won't be any room up front ;)

But also nah, although yes it makes more sense, the idea is I want to beat electric with this one, not join it! :d

Link to comment
Share on other sites

  • Dave Eastwood (Gadgetman) - Club Chairman locked this topic
  • Dave Eastwood (Gadgetman) - Club Chairman unlocked this topic
Guest
This topic is now closed to further replies.
 Share

×
×
  • Create New...

Important Information

Please review our Terms of Use, Guidelines and Privacy Policy. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.