Many mods done..what next?..Help!!

[wolfemantony]

I have a 98 gsx 5sp. Here is a list of mods on car.

Engine:
-Magnecor 8.5mm wires
-DSMLink version 2
-Prothane motor mounts on roll stops
-Fidanza Aluminum flywheel
-Scatter Shield for flywheel
-ACT 2600 Clutch
-1G Head - ported and polished with:
-Crower springs and ti retainers
-SI Stainless Steel 1mm oversize Valves
-New OEM lifters & rockers
-Crower Stage II cams
-Fidanza Adj cam gears
-Mitsu metal head gasket (4-layer)

Exhaust:
-3" turbo to tip RSR exhaust
-3" high flow cat
-Ported Exhaust Manifold
-2.5" tubular O2 Housing

Intake:
-Forced Performance Big28 turbo - ported
-Manual Boost Controller
-HKS Super Mega Flow Air Filter
-1G Dejon leak-stop BOV
-Greddy UIC pipes
-Supra SMIC
-RRE Larger Turbo Inlet Pipe
-1G throttle body
-1G intake manifold - ported

Interior:
-Westach Turbo Gauge -30-0-30
-Westach EGT Gauge
-Westach Fuel Pressure Gauge
-AEM wideband O2
-HKS Turbo Timer
-White gauge overlay kit

Suspension & Brakes:
-Brembo Cross-drilled rotors
-Ceramic pads - new
-Front and Rear strut tower bars (rear not currently connected)
-RRE lower strut bar
-RMDSM front and rear sway bars (all bushing were upgraded with this install)
-Tokico struts on all 4 corners

Fuel:
-Walbro 255lph
-Charged Air 2G FPR
-SteveTek Fuel setup
-Jaz High flow Fuel Filter
-6 AN Fuel rail adapter
-Nippon Denso 660's injectors

Not sure what to do next? Drive shaft? short shifter? Any and all advice is greatly appreciated. Also, if one has similar mods..what are you 1/4 mi times. I havent ran my car yet. Thanks!!

 

[fran_drivertsi]

Pics

 

[Joe Cool]

You've done all of these mods and you don't know what you should do next? That doesn't really make much sense to me.

Get FIC 1150cc injectors, turn the boost up to 25 and tune yourself on E85, enjoy your life more than you have ever before.

 

[tehehodi]

What are your goals? We can answer your question better.

 

[bNasty]

built motor?i didnt see any internal work besides the head?

 

[wolfemantony]

Im currently deployed to iraq; i bought the car since i have been over here. I was not the one who tuned the car. The modifications were done by the previous owner. The car has 87k with all the mods listed installed at 55k. I want a whicked fast daily driver. I want the exhaust to sound like that of an STI..the throaty sound. i want 400-450hp and high end tq. Accelerate from 60-120 quickly.

 

[tehehodi]

You want the sound of an STi? Get an STi. That won't happen in a DSM. Build a 2.3 stroker and get a hta68. I'm sure you'll be happy with the insta boost and torque. Also get a fmic and get on e85 asap.

 

[wolfemantony]

The guy i bought it from said his friend had similar mods and was in the 320-350hp range. What do i need to do to get into the higher hp/tq range?

 

[jazzfoxx123]

Get bigger fuel injectors, and start building rebuilding the block pistons,connecting rods, and crankshaft so you can have a reliable daily driver.

 

[tehehodi]

Go get a tune and some dyno time.

 

[the_mork]

The stock block can probably handle 400hp on a good tune, 450hp would make me nervous if I relied on it on a daily basis. That turbo however will never make 400hp. You'll need to move to something larger. An evo3 16g will make that horsepower once it is completely maxed out potentially so shoot for something larger than that even. Do some searching on a different turbo but you're going to largely see recommendations for an HX35, FP green. or 18g-6sl2 IMO.

Honestly it sounds like that car has had more money than know how thrown at it so you'll need some other bits as well. In order to make use of the extra airflow of one of these larger turbos you'll also need to looking into a different intercooler, pay attention to piping as well as cores because as much as it is very nice to have the sleeper intercooler (trust me I know) the convoluted mess of piping involved can cause a lot of performance loss. You'll also need larger injectors to take advantage of the increased airflow. Your 660s will handle about 40lbs/min reasonably on pumpgas which is plenty for the t28 but would be close to the edge even on a 16g and a switch to e85 would put you back to near stock boost levels. Consider 1000cc or larger injectors if you want to make real power.

Finally, get a quality tune dsmlink v2 is a great system and there are people all over the country that can tune it quite well so find one of those people, buy them a burger, let them tune your car and teach you what they are doing, and then buy them a beer afterward. On a car with a lot of boltons the difference between a shitty tune and a quality tune can be 40+hp and an incredible increase in motor longevity. This step is the most often ignored step out there. If you really want things done right then after you're done road tuning it take it to a respectable dyno-tuning shop and let them dial it in the rest of the way.