Bills 33 Gtst Streeter/track Car

[admS15]

Have you replaced the std rubber intake pipe yet ?

Yes with 80mm stainless lobster, hectic flutters with no bov lol

Need a video of sututututu [emoji2]

Will try to get one. I'm going to have to disable my antilag/launch to do at standstill. CBF but I'll try[emoji12]

[admS15]

Update. I got sick of the hectic flutters and dose and reverted to the stock airbox. I think the final straw was when a toothless bogan in a vs commodore was hanging out the passenger window giving me the thumbs up when he saw me taking off. Not the kind of attention I'm after. Lol.

[admS15]

In other news, I have been quite busy over the last month. I have replaced my exhaust manifold gaskets and studs as a couple decided they would snap off. I also got around to replacing the upper intake manifold gasket too. None of this had any impact on my holding boost issue.

[admS15]

I managed to get to the bottom of the boost issue. It ended up being an issue with the intake snorkel not sitting properly due to the new alloy rad being too thick. The snorkel was angled up towards the bonnet and was effectively making the air entry point narrower and becoming a restriction at high boost/revs. Can't believe this was the damn problem. Shakes head. I'm going to heat it up with a heat gun and mould it so it sits properly around the new rad.

f**k you snorkel.

[admS15]

Since I thought that all my issues had been solved, I thought I'll put the car to the test and what better way to do that than a track day.

I entered the demo class for the Vic time attack yesterday. There was only 6 cars entered in this class and less than 40 cars across all classes. There was stuff all traffic and plenty of track time. The last 2 sessions it was only me and 1 other car a 370z sharing the track. I completed all of the 6 x 12 min sessions. The car didn't miss a beat. The only things I did was adjust tyre pressure and pour fuel into it. The issues I had at sandown are gone. The brakes worked quite well as this circuit is less demanding of them. The same can't be said for the driver. I was a bit hesitant as the last time I was at the island I crashed my old car. I progressively got quicker through the day. I started the day doing 2:02's and worked it down to a 159:76 on my final lap of the day. This is 1 second off (slower)my previous pb in my s15 but I'm quite happy with that for now. There was a slight mix up with the timing, my car was no.31 and was associated to the wrong car description and name. There's probably a bloke in a pos Lexus is200 boasting to his mates that he did under 2 mins at Phillip island. Lol.

[admS15]

Also weighed the car at the weigh bridge at the track. Came in at 1423kg with an almost full tank of fuel, full interior, 18 inch rims with 265's all round + half roll cage. It was a little less than I was expecting. I was surprised and happy at the same time. My s15 at the same weigh bridge was 1380 with full fuel. Maybe all the carbon fibre bits have reduced a fair bit of weight.

[Burger]

Update. I got sick of the hectic flutters and dose and reverted to the stock airbox. I think the final straw was when a toothless bogan in a vs commodore was hanging out the passenger window giving me the thumbs up when he saw me taking off. Not the kind of attention I'm after. Lol.

I'm surprised he didn't try to race you.

[Dose Pipe Sutututu]

noooooooooo need more dose

[admS15]

Some pics from the other day.

[admS15]

I'm surprised he didn't try to race you.

He did, I just didn't realise though. Lol

noooooooooo need more dose

Dosed out for now brah. If it makes you feel any better, I did run the pod at the track. Plenty of sutututu[emoji3]

[Dose Pipe Sutututu]

+10 for dose effort haha

[admS15]

A bit of an update, not much has happened over the last couple of months. Did a hill climb at haunted hills, car performed very well and had no issues. The Achilles 123s tyres have now seen better days. The rears lasted 2 track days and about 5000 street km before being on the indicators. They grip very well but longevity is poor. They where a false economy. Ive swapped them around front to back so I can get another track day out of them and i'll probably move on to some rs3's.

The car has had a few minor changes, a gfb bov for a choice of woosh, sututu (so Johnny dosepipe doesn't get upset)or silence depending on the flavour of the month, a pod filter semi housed in a stock airbox (more sututu) and a hard wired upgraded fuel pump (dw340lph) in prep for E85. This required a tweaking of the fuel maps and an extra 12rwkw where found, making a total of 260rwkw on BP98. An ethanol sensor has also found its way onto the return fuel line and I have finally got around to fitting an air temp sensor. Naughty me has been driving around for the last 10 months without one.

Flex fuel is on the horizon, everything has been setup, just waiting for the tank to be empty of 98. I'm pretty much running on fumes atm, so hoping to drain out the remainder over the weekend and dump a jerry can worth of E85 in there. Hopefully I can get the thing to start so I can try to sort out cold and hot starting and tune the light load compensation table so I can drive it around for the next week to flush all that yucky 98 out and bring the E content up to 83-85.

Hopefully everything goes well and its tuned over the next couple of weeks. A big thank you to our resident adaptronic expert, Johnny (dosepipesutututu), ive been breaking his chops with a million and 1 questions on how to set this all up and do some basic tuning on it. Thanks mate. A couple of pics for now and ill post some more later.

[admS15]

Nearly ran out of juice on the way home from work. Car was cutting out around left hand turns. Luckily a united was just around the corner. I was too scared to switch the car off, in case it wouldn't start so I put in 2 litres of e85 with the car running to get home. I got home and plugged the laptop in and was sitting on 34% ethanol. I made a couple of little tweaks to the hot start and compensation table and got my jerry cans and headed back to united. Filled 2 Jerry's and put another 4 litres in the tank. Its now on E62 and running in an acceptable manner to cruise in. Just got to hope I can get it to start in the morning. Tomorrow I'll drain what's left over and pour in 20l and hope for a reading in the 80's. So far all I can say is it smells good.

[SwapperMX]

Great thread mate. Will continue to follow !!

[admS15]

Thanks swapper[emoji106] . Car started well this morning at 7 degrees, had a slight hesitation after a few seconds. I think I need to increase the post start cranking compensation a bit. I ran the fuel down again and added 12l of e85 in the tank. It's at E76 now. I did some road tuning and its happily cruising around.

I can't believe how well the car idles now and how smooth it is compared to 98. When I come to a stop at traffic lights, I have to look at the tacho to make sure the car is still running. E85 is bloody awesome[emoji3] . Can't wait to get it on a dyno and crank the boost up.

[Dose Pipe Sutututu]

woot woot

Good stuff mate, looks like it's coming along well!

[admS15]

Yes it is Johnny. Will be dosing harder soon. I bit the bullet last night and went to united and filled the tank. Ended up on 78% ethanol according to the flex sensor. I'm gonna have to try and burn as much of it down as I can and refill before the tune. I really want to get the ethanol content to 83 or more. I may have to try a different united. What are peoples experience with united and what their flex sensors show? Is it consistently E85 or can it be as low as 78?

Here's a few more pics of things that have changed on the car.

I managed to pick up that hacked up airbox and pod filter in a couple of boxes of assorted RB junk that I won on ebay for $4. I ended up giving the guy $40 for it all. Felt sorry for him. The bloke was wrapped and so was I. Lol

[Dose Pipe Sutututu]

I find united usually varies between E82 to E87 (best I've seen)... but it's pretty consistent

[admS15]

This happened yesterday morning. Car is tuned on e85 now and responded very well to timing increases. Ended up with 312rwkw and 476nm @ just under 20psi. Yeah baby. That run was done without any additional timing below 4000rpm so the power and torque below that will be a fair bit better than what the graph shows. Was starting to run low on e85 so we stopped doing power runs after that.

VID_20160702_121358_643.mp4

[admS15]

The tune was done by Simon Phillips at Vic dyno hire in Ballarat. Simon has a very quick turbo datsun 1200 improved production racecar and has tuned quite a few other ip race cars. I decided to give him a go as he was available at short notice and im glad i did. It was a bit of a hike driving to ballarat but i figured i've driven further for track days and his hourly rate for dyno time was very attractive and offset the fuel costs. His service, thoroughness and attention to detail where excellent and i wouldn't hesitate to recommend him to anyone in his area or willing and able to travel to ballarat.  Ive covered around 300km since getting the tune and the car drives like an absolute beast when on the gas and cruises beautifully in all other situations. Gotta love E85 for that.