Bigger turbo
Senior Member
Joined: 08-28-07
Posts: 755
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From: columbus
your 12.7's on street tires.
ok... traction and a slipping clutch are not helping. I will be installing my clutch soon. i also bought a beater truck to drive so I can pick the car apart and make it a very reliable sub 12 sec car. and only drive it when its nice!!!
ok... traction and a slipping clutch are not helping. I will be installing my clutch soon. i also bought a beater truck to drive so I can pick the car apart and make it a very reliable sub 12 sec car. and only drive it when its nice!!!
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Joined: 03-31-09
Posts: 192
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From: Buffalo NY
These cars are 3000 lbs... Neon srt4's need over 380whp to run in the high 11.7-11.9 in the 1\4 area... the Cobalt SS\TC is no different except it's DI fuel system........ The wheel up grade will get get you as stated back a page, 330-340 whp... On slicks that's good for maybe 12.4's at 115-116 mph.......
AS for fuel, One of the things I've noticed people forgetting to address is the fuel pump... Anytime you take a car and pump up the hp by 70-90 whp you will need a fuel pump upgrade so you dont get fuel starvation.... a walbro 190 or 255 unit will work just fine and take some of the pressure\work load and maxing out the cycle out of the injectors so the car can run a safe 380-415 whp....... without pushing the Fuel to it's limits.....
We do this on big V8's and small 4 bangers are no different......
That's an impressive tune\hp numbers... Did trifecta come out and tune your car? No way you can get a mail order tune that good, just no way.....
The wheel upgrade from BTF ( the only company offering this) is a great idea but I'm hearing that they're saending people back a regular K04 single scroll, ours is a twin scroll..... Single scroll will cause mucho problems....
AS for fuel, One of the things I've noticed people forgetting to address is the fuel pump... Anytime you take a car and pump up the hp by 70-90 whp you will need a fuel pump upgrade so you dont get fuel starvation.... a walbro 190 or 255 unit will work just fine and take some of the pressure\work load and maxing out the cycle out of the injectors so the car can run a safe 380-415 whp....... without pushing the Fuel to it's limits.....
We do this on big V8's and small 4 bangers are no different......
That's an impressive tune\hp numbers... Did trifecta come out and tune your car? No way you can get a mail order tune that good, just no way.....
The wheel upgrade from BTF ( the only company offering this) is a great idea but I'm hearing that they're saending people back a regular K04 single scroll, ours is a twin scroll..... Single scroll will cause mucho problems....
dude...STFU!! you are by the far the biggest retard ive ever seen post on here...the walbro fuel pumps WILL NOT HELP WITH THE D/I UNTIL THE CAM DRIVEN FUEL PUMP CAN HAVE MORE PRESSURE OR WE GET AN AFTERMARKET PUMP THAT CAN FLOW BETTER! all your gonna do is get more fuel from the tank to the cam driven fuel pump and then its not gonna be able to be sprayed effectively because there isnt enough pressure!! this is my 2nd D/I car ive owned in the past 2 years and they are all the same with the fueling issues, not enough fuel pressure = no more power... you honestly need to stop posting stupid irrelavant **** on here and misinforming everyone...go find a tall building, step to the edge of the roof and jump
Thread Starter
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Joined: 08-15-08
Posts: 2,878
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From: Lee's Summit MO
FAIL
dude...STFU!! you are by the far the biggest retard ive ever seen post on here...the walbro fuel pumps WILL NOT HELP WITH THE D/I UNTIL THE CAM DRIVEN FUEL PUMP CAN HAVE MORE PRESSURE OR WE GET AN AFTERMARKET PUMP THAT CAN FLOW BETTER! all your gonna do is get more fuel from the tank to the cam driven fuel pump and then its not gonna be able to be sprayed effectively because there isnt enough pressure!! this is my 2nd D/I car ive owned in the past 2 years and they are all the same with the fueling issues, not enough fuel pressure = no more power... you honestly need to stop posting stupid irrelavant **** on here and misinforming everyone...go find a tall building, step to the edge of the roof and jump
dude...STFU!! you are by the far the biggest retard ive ever seen post on here...the walbro fuel pumps WILL NOT HELP WITH THE D/I UNTIL THE CAM DRIVEN FUEL PUMP CAN HAVE MORE PRESSURE OR WE GET AN AFTERMARKET PUMP THAT CAN FLOW BETTER! all your gonna do is get more fuel from the tank to the cam driven fuel pump and then its not gonna be able to be sprayed effectively because there isnt enough pressure!! this is my 2nd D/I car ive owned in the past 2 years and they are all the same with the fueling issues, not enough fuel pressure = no more power... you honestly need to stop posting stupid irrelavant **** on here and misinforming everyone...go find a tall building, step to the edge of the roof and jump
Last edited by revhigh18; May 6, 2009 at 03:58 PM. Reason: Automerged Doublepost
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Joined: 06-25-07
Posts: 6,003
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From: Kissimmee, Fl
Uhmm... 
just happened??
I'm interested to see how the fuel issue is adressed. What's the problem with running a bigger turbo at higher RPM? Are the injectors maxing out or is it the fuel pump not being able to keep up with the demand needed?
just happened??I'm interested to see how the fuel issue is adressed. What's the problem with running a bigger turbo at higher RPM? Are the injectors maxing out or is it the fuel pump not being able to keep up with the demand needed?
New Member
Joined: 03-31-09
Posts: 192
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From: Buffalo NY
im honestly not that hateful of a person i swear lol i just dont have the patience for morons or people that act like douche nozzles...revhigh is just pissed off because i told him why everyone was hating in his "my car is the fastest car ever thread!" or w/e its called...i wasnt hating on him i just simply stated why he was getting flammed so much
Both kind of...we need one of 2 things...a better flowing fuel pump (Possibly similar to the one for the DI motor on the Speed3) or further fuel table control from an engine management software like HPTuners...or both.
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Joined: 03-31-09
Posts: 192
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From: Buffalo NY
Senior Member
Joined: 08-11-08
Posts: 3,888
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From: San Diego
Interesting....... so yesterday I emailed HP tuners with some questions and how we would be able to help them out in order to solve current problems. If I wasn't as sea I would have just called them. Anyways, they email me saying they would get back to me in a day or two. I hope to hear from them.
Member
Joined: 09-05-08
Posts: 371
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From: bfe
AS for fuel, One of the things I've noticed people forgetting to address is the fuel pump... Anytime you take a car and pump up the hp by 70-90 whp you will need a fuel pump upgrade so you dont get fuel starvation.... a walbro 190 or 255 unit will work just fine and take some of the pressure\work load and maxing out the cycle out of the injectors so the car can run a safe 380-415 whp....... without pushing the Fuel to it's limits.....
....
Senior Member
Joined: 08-20-08
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From: El Paso Texas
well, there is a guy ON HERE running a GT30,,,, no issues.. dont know numbers, but i seen in car videos of this car doin som CRAZY pulls... flat out amazing.. stupid fast.. AT LEAST,,, 400whp...
i'm just waiting on bill to get his S20G installed and everything tuned on his car so i can get that same tune... he is very very tedious about it, so i know that soon, i am going to have MY 400whp, as well as bill. he knows what he's doin.
i'm just waiting on bill to get his S20G installed and everything tuned on his car so i can get that same tune... he is very very tedious about it, so i know that soon, i am going to have MY 400whp, as well as bill. he knows what he's doin.
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Joined: 06-25-07
Posts: 6,003
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From: Kissimmee, Fl
Interesting. I know it is direct injection and tuned your idc's are at like 40something % right? It's still a newer motor and I bet given some time we will see someone on a gt35 or some bigger turbo revving to 7500 and taking names with it. Interesting info guys. 
Member
Joined: 07-04-08
Posts: 317
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From: Ashburn, Virginia
i agree with time this car will be a true beast
Senior Member
Joined: 08-11-08
Posts: 3,888
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From: San Diego
Please, just comtribute to the subject, not bitch about it alright!!! This thread was made to reasearch together and talk about current challeges, so man the **** up.
For the 2 people argueing, please stop! All i could say about you 2 when fighting on here is " You articulate pretty well for having a dick in your mouth" NOW BACK TO THE SHOW, ****!!!!
For the 2 people argueing, please stop! All i could say about you 2 when fighting on here is " You articulate pretty well for having a dick in your mouth" NOW BACK TO THE SHOW, ****!!!!
Senior Member
Joined: 07-25-08
Posts: 12,450
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From: Florida
FAIL
dude...STFU!! you are by the far the biggest retard ive ever seen post on here...the walbro fuel pumps WILL NOT HELP WITH THE D/I UNTIL THE CAM DRIVEN FUEL PUMP CAN HAVE MORE PRESSURE OR WE GET AN AFTERMARKET PUMP THAT CAN FLOW BETTER! all your gonna do is get more fuel from the tank to the cam driven fuel pump and then its not gonna be able to be sprayed effectively because there isnt enough pressure!! this is my 2nd D/I car ive owned in the past 2 years and they are all the same with the fueling issues, not enough fuel pressure = no more power... you honestly need to stop posting stupid irrelavant **** on here and misinforming everyone...go find a tall building, step to the edge of the roof and jump
dude...STFU!! you are by the far the biggest retard ive ever seen post on here...the walbro fuel pumps WILL NOT HELP WITH THE D/I UNTIL THE CAM DRIVEN FUEL PUMP CAN HAVE MORE PRESSURE OR WE GET AN AFTERMARKET PUMP THAT CAN FLOW BETTER! all your gonna do is get more fuel from the tank to the cam driven fuel pump and then its not gonna be able to be sprayed effectively because there isnt enough pressure!! this is my 2nd D/I car ive owned in the past 2 years and they are all the same with the fueling issues, not enough fuel pressure = no more power... you honestly need to stop posting stupid irrelavant **** on here and misinforming everyone...go find a tall building, step to the edge of the roof and jump
Senior Member
Joined: 07-25-08
Posts: 12,450
Likes: 6
From: Florida
