"Bolt-on" 400awhp ...Is it Unrealistic?

[blcknspo0ln]

The 350whp range is not really out of the question. I hit 298whp by close to 2800rpm on 14lbs and I continued to pull power (on stock cams) until 5700rpm. Give or take a few on the rpms stated.

So I imagine a little more tuning and boost, I can see hitting 350.
This was on the EVO3, I love the turbo. It's the perfect set up for me.

Please post a dyno chart..

 

[GPTourer]

Please post a dyno chart..

Yeah, man please do. How are you getting that much power with only 14lbs of boost?

 

[pianoman]

If your really worried about lag, why not just use nitrous to help spool it?

 

[psychlow]

If your really worried about lag, why not just use nitrous to help spool it?

Ever run nitrous on a road course? Because that's what he's after....

 

[pianoman]

missed that..

 

[Mackzero]

I sent you a pm, I have a setup that would work great for you.

 

[Nayr747]

Ever run nitrous on a road course? Because that's what he's after....

I dont think the guy that started the thread was doing road courses.

Porting heads does very little on modern pentroof designs. Money is best spent elsewhere in my opinion

Not to get off topic but this is why I dont get the whole Hemi thing coming back. People like to know that they have an outdated combustion chamber design on their cars?

 

[boostedinaz]

Not to get off topic but this is why I dont get the whole Hemi thing coming back. People like to know that they have an outdated combustion chamber design on their cars?

The Hemi design is not outdated. In fact you are driving a Hemi right now. They are very effcient when coupled with muti valve heads and with the new version of the V8 Hemi I have a feeling you will see sick numbers soon. Hell look at alot of racing classes like Show Room Stock they are going low 11's with cars setup excatly as they were when they were new. Same tires, clutches, gears sets, and on and on.

Even the might 4G63 ican considered outdated.

 

[psychlow]

I was under the impression that our heads were pentroof, not hemispherical.

I dont think the guy that started the thread was doing road courses.

You're right - I read Revolution's post thinking it was NewTT's.

 

[Nayr747]

The Hemi design is not outdated. In fact you are driving a Hemi right now. They are very effcient when coupled with muti valve heads and with the new version of the V8 Hemi I have a feeling you will see sick numbers soon. Hell look at alot of racing classes like Show Room Stock they are going low 11's with cars setup excatly as they were when they were new. Same tires, clutches, gears sets, and on and on.

Even the might 4G63 ican considered outdated.

I dont get how the 4G63 is a "hemi." It has a pentroof combustion chamber design right? Cause what makes it a Hemi is the hemespherical chamber design that was superior to the flat roof design that precedded it Decades Ago. The pentroof design in modern cars is superior to the Hemi's for many reasons. Hemi's can't have four valves per cilinder, only two. They have to have two spark plugs per cylinder. And so on.

http://auto.howstuffworks.com/hemi5.htm

 

[half-cocked]

The Hemi is the winninest engine in drag racing history, why do people still use it? It works. The 4G63 is almost 2 decades old, why is mitsubishi still building it? It works. Some designs are as perfect as we are going to see. The flat head design ford came up with is still in production today, in low ouput generator and lawn mower engines. There is no reason why to try and reinvent the wheel.

 

[Nayr747]

The Hemi is the winninest engine in drag racing history, why do people still use it? It works. The 4G63 is almost 2 decades old, why is mitsubishi still building it? It works. Some designs are as perfect as we are going to see. The flat head design ford came up with is still in production today, in low ouput generator and lawn mower engines. There is no reason why to try and reinvent the wheel.

But why is the flathead design not used in cars anymore, but only in mowers etc. Because there are better designs that came out. Yeah, it works, just not as well as other ones. The 4G63 is a great engine and I love it. When I'm forty and they start advertising a car as being like a dsm I'm sure I'll be all over it. But that's just because I love DSMs. Same thing with the Hemi. But what's going in the Evo X? Not the 4g63. A better design has been made and that's what they're gonna use.

I'm screwing up this guys thread though. Sorry about that.

 

[GPTourer]

Speaking of Hemis, (the Challenger is coming back as a Mustang fighter) Isn't the new Hemi nothing like the old design? What is different? I had been told it doesn't really have the hemisperical head design, but it called a Hemi for marketing purposes and minor techincal loophole?

 

[Revolution]

I was under the impression that our heads were pentroof, not hemispherical.

You're right - I read Revolution's post thinking it was NewTT's.

If anything us tuners should look at autocross as a means of truley modding our cars since most of our time isnt spent on highways but on city streets.

Hey I could be wrong ,but last time I checked every true sports car was tried and tested on race tracks more so then 1/4 miles.

 

[boostedinaz]

If anything us tuners should look at autocross as a means of truley modding our cars since most of our time isnt spent on highways but on city streets.

Hey I could be wrong ,but last time I checked every true sports car was tried and tested on race tracks more so then 1/4 miles.

I have never understood why so many people who road race, auto cross, or any of those have a way of "looking down" on drag racing. Sure you just go in a straight line, but there is just as much setup and tunnign involved.

My main point will be that everyone is different and with that comes different sports. Sure a car was tested on a road course, but it can still be built to go fast in a straightline. Going along with your example of driving om the street, how many times have you tried to outbreak a car into the apex of a turn on the street? Now how many times have you drag raced a car from a stoplight. To me the street is more drag race than anything.

 

[pianoman]

Boostedinaz is right. Much more stoplight racing goes on then racing sombody through a turn, unless you street race like that unmentionable movie. Although theres nothing wrong with having a well rounded car. i.e. Scott Gray. 490hp and he can pull 1.03+g's on the skidpad, wet or dry.....

 

[Revolution]

I think my post was taken the wrong way so I will elaborate. I don't look down on straight line racing, In fact I admire allot of drag racers for being able to push their cars to the absolute limit. Dialing in suspension settings for the 1320 is just as hard as dialing it in for the track, it's still racing so certain things wont change in either sanction ,but a drag car wont make a good street car while a good autocross car will make an amazing street car.

That was my point and my belief and so I will continue to stand by it. I do frown on very aggressive street driving whether it be straight or around a curve because then your playing with allot of peoples lives. But when theirs an emergency and a loved one is in need of help Id rather know I can take the corner rather then knowing I could go flying in a straight line. I mod my car for the vary same reason I keep my cell phone on while I'm working( I'm a nightclub bouncer) you never know when it will come in handy.

 

[Car Cannibal]

Look at these mods and tell me which ones do not fit.

2.3 stroker
Ported Heads
50 trim
Shep Stage 3 trans
Stock cams

This car should put down 500 hp to the wheels yet you are going run a 50 trim and stock cams

Listen to some of the guys on this board, they know whats up and how to make these cars fast on pump gas. The smallest turbo I would get would be a PTE 60 trim in the .63 housing and I would recommend the SCM61 internally gated with the 38mm flapper to save you money on getting the wastegate.

If you want it to spool faster and make more low end torque than these parts will really help.

AMS intake www.automotosports.com/index_dsm.asp ( sounds like $700 )

Stage 1 Forced Performance cams, more low end torque ( $440 )
http://linux.forcedperformance.net/...&Product_Code=FPCam1&Category_Code=DSM-Engine.

The turbo means jack at emmisions time. Its going to be idling due to it being an AWD and anyone can pass with an

Adjustable FP regulator
Maf translator, Chip and or Safc 2
Catalytic Converter
Diagnostic tools like the Scanmaster etc.

This car will kill your TA with the money you are going to dump in it so try to only buy stuff once and have fun killing everyone on the street.

 

[endlessMyk]

Now ten people will come in and say that Slowboy made 400 WHP on a 16G, but you arent Slowboy and, no offence but I doubt that number will be repated.

I've even bs-ed with the guys over at Slowboy (only redeeming quality of Indiana, PA) and they pretty much agreed with this. They were running race gas, and I beleive it took a hell of a lot to get it up there. But then again, they're Slowboy and they have everything at their fingertips to do a hell of a lot...

 

[sweet97]

I've got a Buschur stage 3 motor arriving wednesday, block and head. I have an AGP RS60T($699.) plus 4100. for the internal gate that holds rock solid. HKS 272's, Walbro255/AFPR/650cc's. Cold Air Intake. Spearco 2-221 FMIC. MAFT/wideband/EPROM ECU-DSMchip. 3"Turbo back.header. I hope to make 400AWHP, it's the pump gas that is the restriction. I have 112 readily available when I am localbut on the road I have to take what I get.