Merlin's 4G Time Attack Lude

bb1boy · Post by **bb1boy** » Wed Apr 08, 2015 12:08 pm

Merlin wrote:The traction bar is the lowest part of the car now and is just less than 8cm off the ground so any form of individual of speed bump is a no-no

I drokking hate speed bumps!

Nice car

Post by **Merlin** » Fri Apr 10, 2015 11:36 am

A bit late to the party - Exedy stage 2 thick disc clutch kit.

http://www.exedyusa.com/race_clutch/exe ... clutch.php

Since there was life left in my Competition Clutch stage 5 kit we reinstalled it. IF this Exedy kit had turned up when it was supposed to

it would have been fitted then. So this will be kept in reserve.

Post by **vanzep** » Fri Apr 10, 2015 12:13 pm

A bit of rake on the suspension isnt a bad thing as long as it compresses under load
newkids old blue 4th gen had a bit of rake- if i remember correctly these were the stiffer more track focused springs that mugen made

you could also fit the big carbon wing to press things down at the back...

good pic of the exedy clutch

looks like it has three front brake pads on the friction plate

good luck with the weight/power testing session

great pic of your lude on p139

Post by **Merlin** » Sun Apr 12, 2015 9:46 pm

The car is all done (well 99% there) the weight is in, had its wheels aligned and been on the dyno & scales.

I had flattened out the roll of lead to go under the passenger seat

And it fitted in there nice

The lifting weights were bolted into the boot of the car along with a cage we made for it. We were rushing so I don't have a pic.

On the scales at power & weight testing the car (plus me) weighed 1319kg, pretty much exactly what I was aiming for. On the dyno however, the dyno (the same dyno I was made to go on mid-season last year) recorded my power lower than it did last time. It gave a figure of 198 whp.

The dyno operator said that there could be a few reasons why it read different. The best thing about it is that it has done me a huge favor. I don't really care what the dyno says as the car still feels as rapid as ever so the "loss" in power is not a major mechanical problem. But lap times will tell.

My ballast estimation was based on the last dyno of 208 whp.

198 whp & 1319 = 150.1 whp/T which is well under the 160 whp/T limit of the class. We car going to remove a chunk of ballast to get in the upper 150's whp/T

So less weight should equal faster lap times.

So am in class E where I wanted to be

[youtube]XeOSkC9nqXQ[/youtube]

SLS Team - TrackScotland AK

This year I'm in the same team for SLS. We are defending our title from last year

Adam Kindness - Subaru Impreza 321 whp/T Class A

David Long Caterham R400 386 whp/T Class A

Dave Graham Mitsubishi EVO VIII 239 whp/T Class C

Me! Honda Prelude Si VTEC with 151-156ish whp/T

Post by **Doggo** » Sun Apr 12, 2015 11:05 pm

Get in!

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Mon Apr 13, 2015 12:40 am

awesome sauce

Post by **NafemanNathan** » Mon Apr 13, 2015 8:33 am

Nice one Allister

Do you have to get randomly dyno'd throughout the season at all?

Good pics to

gb-lude · Post by **gb-lude** » Mon Apr 13, 2015 8:56 am

Great merlin! Car looks and sounds really good!
Strange it lost some HP but less weight is good!

How is the distribution per tire?

Post by **Merlin** » Mon Apr 13, 2015 9:16 am

NafemanNathan wrote:
Do you have to get randomly dyno'd throughout the season at all?

Nope

One of the reasons for SLS using only one dyno was to get away from competitors being suspicious of other dyno's. This result is non-contestable. The only way I can be petitioned again is if someone thinks I have dumbed the car down for this run and ran a higher power on the day, or am using switchable maps. None of which I am doing, just straight up as it is.

The dyno operator said that the difference in results was even across the whole rev range, not contained to either low down or high rpm. This points to the dyno reading it different. He also said that environmental factors, the fix to my downpipe gasket, the tightness of the straps on the dyno (wheel slip) could all have resulted in the minor whp loss. Also, and im not sure how much this will affect it, the car has barely moved over the last 6 months. Only over the last couple of days has it begun to stretch its legs again.

gb-lude wrote:Great merlin! Car looks and sounds really good!
Strange it lost some HP but less weight is good!

How is the distribution per tire?

Decent for a first go

This pic is with me in the car. Take off my 75kg from the drivers side and the fronts are within 10kg of each other, very livable. The rears have a bigger difference, a little more than I would have liked, but since it is on the back I am not too bothered. I am planning suspension work for later in the year. I will better balance it out then. At the moment handling feels good.

Post by **NafemanNathan** » Mon Apr 13, 2015 9:32 am

Merlin wrote: The only way I can be petitioned again is if someone thinks I have dumbed the car down for this run and ran a higher power on the day, or am using switchable maps. None of which I am doing, just straight up as it is.

Yeah, this is why I thought they might. You could accidentally "loose" some of your ballast, or upgrade anything without them knowing. So the thought of random dyno and weight checks would deter any of that kind of shenanigans.

Lude Generation

Merlin's 4G Time Attack Lude

Re: Merlin's 4G Time Attack Lude

SLS 2015 - Dyno & Team

Re: Merlin's 4G Time Attack Lude - SLS 2015