My old 300hp 4g93 needs some lovin!

Ok, So roll racing last night, I realised I need more power, because the new $400k McLaren beat me. He cheated, but he beat me.
In fact, a lot of cars beat me, like a big block XB Falcon with a 200 shot of NOS beat me by nearly 3 car lenghts!
I logged the data and noticed no matter how much I turned the boost up on the Eboost2, it ran out of puff . Also the fuel leaned out ever so slightly.
So i bought a new fuel system with twin Bosch 044 and surge setup today, its good for about 800hp, so plenty for me.
But I also need a new turbo. Im thinking something around 5-550hp at the motor? I dont know.

Any thoughts DrB ?
 
  • Like
Reactions: DrB
Mate, you kept smashing cars the whole night. Only towards the end when the big boys came out did they start getting a bit Infront of you.

Why'd you keep getting paired up with that sleeper r31?
 
Videos please.

Is power your limiting factor or perhaps traction?

Also 4G63T + AWD conversion if you never(ish) want to lose again
 
Ok, So roll racing last night, I realised I need more power, because the new $400k McLaren beat me. He cheated, but he beat me.
In fact, a lot of cars beat me, like a big block XB Falcon with a 200 shot of NOS beat me by nearly 3 car lenghts!
I logged the data and noticed no matter how much I turned the boost up on the Eboost2, it ran out of puff . Also the fuel leaned out ever so slightly.
So i bought a new fuel system with twin Bosch 044 and surge setup today, its good for about 800hp, so plenty for me.
But I also need a new turbo. Im thinking something around 5-550hp at the motor? I dont know.

Any thoughts DrB ?
I'd say pull the turbo out and measure it up properly so you know exactly what your starting with. if it is a gt3071 then maybe just upgrade the compressor to gtx3071 58 trim should flow about 75hp more.
 
Mate, you kept smashing cars the whole night. Only towards the end when the big boys came out did they start getting a bit Infront of you.

Why'd you keep getting paired up with that sleeper r31?

I know I should be as fast as him, but I didnt know I was slowly loosing pressure from the silicone bend coming off the turbo.
That R31 I bought for my nephew as a daily about 8 years ago, he sold it for scrap about 4 years ago and this guy bought it from the scrapyard.
I couldnt believe it the first time I saw it at roll racing.
 
Videos please.

Is power your limiting factor or perhaps traction?

Also 4G63T + AWD conversion if you never(ish) want to lose again

I can get the car to hook, its not easy, but the right tyre and pressure on the day, Itll stick, in fact, its better with a passenger, as it is sketchy as hell with just the driver, it will squirm all over the lane.

Yeah, I know, but $10 to $15K later, Ill have a car thats not actually that much faster.
I have beaten Evos that make over 320kw at the wheels. An evo 5 weighs 1360kgs. Without my interior, I am under 900kgs.
It takes a fair bit of power to move another 400 odd kgs
If I want to spend $20k to $30k or so and have a stupid fast 63, then Ill just have it in an evo 5 or 6 like Koval.
And he still gets beat by a 32 GTR.....

Oh yeah, and videos, Im not real good with them myself, Ill have to get some sent to me from my passengers.
 
Took the ol girl roll racing again on Friday night. Had a blast. I must of had about 15 runs, the old girl just did its thing all night.
I beat some fast cars and got beaten by some fast cars. a couple of mates got some vids on their phone, I will endeavour to get them and put them up.
Probably the best run all night was a guy in a 2017 Camaro LS3 (6.2L) with a procharger on it, I got him by about 3 car lengths. And an AMG A45 with a lot of upgrades was quite slow too.
A heap of ridiculously fast Evo 5s and 6s this time. Good to see em out.
Turbo must be dying ever so slowly. Couldnt get much more than 26psi out of it.
 
  • Like
Reactions: DrB
Took the ol girl roll racing again on Friday night. Had a blast. I must of had about 15 runs, the old girl just did its thing all night.
I beat some fast cars and got beaten by some fast cars. a couple of mates got some vids on their phone, I will endeavour to get them and put them up.
Probably the best run all night was a guy in a 2017 Camaro LS3 (6.2L) with a procharger on it, I got him by about 3 car lengths. And an AMG A45 with a lot of upgrades was quite slow too.
A heap of ridiculously fast Evo 5s and 6s this time. Good to see em out.
Turbo must be dying ever so slowly. Couldnt get much more than 26psi out of it.
Next time you plan on going update this thread and I'll try to come out with my camera and get some good videos for you
 
OK. We're on!
I got a ticket for Friday 22nd September roll racing Sydney motorsport park.
Id love to catch up with any of the Auslancer guys.
Hope to see you there.
 
  • Like
Reactions: DrB
Michael, I would be more than happy if you wanted to get a passenger ticket and ride shotgun a few times to get vids.
 
2nd biggest fan of this car after it's owner. Possibly a very silly, stupid car but for all the right reasons. "my old 300hp" could be closer to 400 I reckon. fantastic car!
 
2nd biggest fan of this car after it's owner. Possibly a very silly, stupid car but for all the right reasons. "my old 300hp" could be closer to 400 I reckon. fantastic car!
Thanks Ads.
322.9hp at the front wheels last dyno. (240kw)
 
SO.....
Coming to work yesterday morning and the ol girl just dies. I figure no spark.
It cranks, got fuel, no zap.
Drag it to work and put it on my hoist as there is no signal from the CAS.
Roll my eyes and say well thank christ thats all it is, but its a pain to replace.
Pull the crank pulley off and the timing covers to reveal a stupid little 10mm bolt that holds the metal timing cover on the head has come out, made its way to the bottom of the housing.
It got caught between the belt and the oil pump. Destroyed them both. Got caught in the trigger plate for the CAS and destroyed it as well.
Made the belt jump, now I dont know if I have an issue with the head or not.
Watch this space.
Moral is. Always use thread lock.
 
geez thats some terrible luck.
Iv seen first hand how much damage a belt jumping around can do, keep us posted on your findings
 
Back
Top