I want torque and Mid-Range Power...screw top end.

[anconover]

well if your going to run a 16g size turbo, no need to worry about having top end

Stock intake manifold is perfect, dont touch it. Pulls to 6k'ish, and outperforms most manifolds low/mid range. Put a 16g on the car, with injectors, and just leave it.

 

[rsunahar]

One reason why I was considering sticking with the smallest injectors possible is that larger injectors have a harder time metering small amounts of fuel. This car is my daily driver - I don't want the drivability/gas mileage to suffer.

On the other hand, I've also heard that running injectors up towards higher duty cycles wears them out more quickly. Is this true?

This kills the injector drivers.

 

[pickens]

I agree with all of this OVER-sizing of injectors is just ridiculous. I run 550s on my 16g at around 20ish psi on a lonely supra sidemount. Timing curves are great and I'm leaned out about 20% across the board. On race gas, I really lean the 550s out and run around 23psi. If I had 660s on race gas, I don't think I could possibly lean them out enough on the AFC to make the most power. 550s are perfect for your T28 or 16g goals

 

[rsunahar]

I agree with all of this OVER-sizing of injectors is just ridiculous. I run 550s on my 16g at around 20ish psi on a lonely supra sidemount. Timing curves are great and I'm leaned out about 20% across the board. On race gas, I really lean the 550s out and run around 23psi. If I had 660s on race gas, I don't think I could possibly lean them out enough on the AFC to make the most power. 550s are perfect for your T28 or 16g goals

You may be right, and I see your point.



Perhaps, though, if a programmed eprom with injector compensation are in place, then I don't see why 80 bucks more for larger injectors shouldn't buy you a little more insurance.
I'm just coming from a once burned standpoint of running lean on pump gas.



But point well taken.

 

[Stapl3]

Sell it get a v8 for torque and power in mid range.

ding ding ding!!!

We have a winner.

 

[herostar]

the best combo for midrange and great torque...better then a huge turbo:uts flamesuit on:: Would be a 2.3-2.4l stroker 8.5 compression, 2g head stock, 2g im stock, 1mm oversized valves, 1g tb, 264/264 cams, 18 psi on a ported t28 killer, small-decent size FMIC(good enough to cool the flow of 550cfms, i.e dejon tool street FMIC), short route piping, 2.5in o2 eliminator turbo back WITH 2.5in catalytic converter...muffler optional, 550cc, 190l, safc or dsmlink. I would say that combo would put everybit of 320-350hp to the wheels, as well as but loads of torque...Im guessing over 400.

I ran my exact setup that I have now with a BIG28 and it was pretty fun. I got 18psi at about 2200rpm, but top end was nothing to speak of, obviously. If low/mid range is what your're looking for I'd go with something like the Big28, I loved it on my old engine setup. It spooled 18psi by 2800.

 

[paul s]

I used to run 550s aith a 18g at 21psi on 94octane and the car was running low 12s all day long. I also have extrude honed 2g IM with 1mm oversize valves. If tou want low-mid power go with the bigt28 with 550s and 264/264 cams..

 

[High PSI]

Sell it get a v8 for torque and power in mid range.

I've already got a Z28...

 

[High PSI]

ding ding ding!!!

We have a winner.

Then maybe I should go ask on the F-body boards how to convert my Z28 to AWD?

Torque and mid-range power can be had out of a 4g63, and DSM's can be used for more than just drag racing.

 

[High PSI]

I ran my exact setup that I have now with a BIG28 and it was pretty fun. I got 18psi at about 2200rpm, but top end was nothing to speak of, obviously. If low/mid range is what your're looking for I'd go with something like the Big28, I loved it on my old engine setup. It spooled 18psi by 2800.

You ran the Big T28 on the stroker?

And what did you run an 8.9 in the 1/8 with? No offense, I just thought you'd be WELL below that with the mods listed in your profile. With a 14B, intake, Joe P MBC, and a downpipe (stock cat-back) I ran an 8.8.

 

[High PSI]

I used to run 550s aith a 18g at 21psi on 94octane and the car was running low 12s all day long. I also have extrude honed 2g IM with 1mm oversize valves. If tou want low-mid power go with the bigt28 with 550s and 264/264 cams..

Where did you feel the difference with the Extrude Honed 2g IM? Where do the oversize valves make their power?

 

[GPTourer]

Jesus. I remember 6-7 years ago when 550's were perfect for a 20g.

The overkilling gets worse and worse every year.

Was the average modded DSM as quick and, dare I say it, reliable 6 to 7 years ago?

 

[btracer]

mustangs are known for torque.... i dynoed mine at 380ftlbs... btw, its for sale

 

[Morphius]

Torque? Midrange power? Think turbo diesel. Need I say more......

 

[paul s]

I would say mid range..

 

[sweet97]

Jesus. I remember 6-7 years ago when 550's were perfect for a 20g.

The overkilling gets worse and worse every year.

Tuningseems to have improved.
Jesus knows all about injector sizes and such as he created the laws of physics. I had 550's with an EVO 16G and they woud be fine with a 6500RPM redline though 660's would be fine also and allow for changes down the road as has been said. I agree go with a 2.5" exhaust.
An FMIC ,even a small one like the dejon street would be nice. A Walbro 190. No need for anything special for the head or intake, perhaps a 1G intake and TB. Mark

 

[herostar]

You ran the Big T28 on the stroker?

And what did you run an 8.9 in the 1/8 with? No offense, I just thought you'd be WELL below that with the mods listed in your profile. With a 14B, intake, Joe P MBC, and a downpipe (stock cat-back) I ran an 8.8.

I ran the Big28 on the stroker for a few weeks until it was broken in and I had enough money to buy my 60-1...

In regards to the time, that is from a year and a half ago... I ran that with full exhaust, mbc, intake, uip/1gbov, 15psi. I don't think I'll get a chance to run my new setup until next summer, unless I want to drive to vegas or something...

 

[High PSI]

Tuningseems to have improved.
I agree go with a 2.5" exhaust.
An FMIC ,even a small one like the dejon street would be nice. A Walbro 190. No need for anything special for the head or intake, perhaps a 1G intake and TB. Mark

I've already got a 3" exhaust, and I don't plan on pulling it off and selling it anytime soon so I'll probably just stick with that. I also already have a Walbro 190HP. An FMIC is in the near future, but I'm going to get my upgraded turbo first....the Supra SMIC is holding up fine for now.

I've decided I'm probably just going to keep the head and intake stock, except for a 1G TB which I've got on the way (and of course port-match the stock IM).

 

[heavyD]

Go with the 550's if you are using it as a daily driver and want a factory-like idle. 660's are overkill for a T28 or EVOIII 16G. The EVO III only came with 530cc injectors so why would you need 660's? I use 660's but I have an FPgreen.

 

[Cesar]

nitrous kit, wet. V8's are fun, not a necessity.

 

[MattnGsx]

Torque and mid-range power can be had out of a 4g63, and DSM's can be used for more than just drag racing.

Wow someone else who wants to build there car for Auto X, people think im crazy when I tell them that... Your pretty much right on the money for setup. Instead of a Big t-28, I went with the t-28 killer, after having someone compare maps, and flows it just sounded better. I also debated between 550's and 650's also, and decided to go with the 650's instead. I boost 20psi and didn't know how 550's would uphold (I didn't want to max out the injectors). Plus If I decided to upgrade turbos I have the fuel to back it up.

People are going to tell you there opinion, so this ones mine. Good luck...

 

[DSMeclipse4G63]

Then maybe I should go ask on the F-body boards how to convert my Z28 to AWD?

Torque and mid-range power can be had out of a 4g63, and DSM's can be used for more than just drag racing.

EXACTLY!!! why everyone says top end is neccesary over all needs to go buy a damn honda. What people dont realize is that even on the t25 we have great top end, maybe not as good as bigger turbos but still great when compared to a n/a v8. the 4g63 can make lots of low end torque but everyone is concerned with huge turbos and 3 in exhaust hence making spool higher, throttle response laggy, and torque down.
Andrew

 

[1fast97gsx]

EXACTLY!!! why everyone says top end is neccesary over all needs to go buy a damn honda. What people dont realize is that even on the t25 we have great top end, maybe not as good as bigger turbos but still great when compared to a n/a v8. the 4g63 can make lots of low end torque but everyone is concerned with huge turbos and 3 in exhaust hence making spool higher, throttle response laggy, and torque down.
Andrew

A t25 has NO top end... Also an NA v8 ( assuming it's an ls1 or one worth modding ) will pull on a properly supported 16g'd car with just an intake and a decent driver.... You ever wonder why our cars run 13.5 @ 98 ish and a TA runs a 13.5 @ 105 or more?

 

[1fast97gsx]

nitrous kit, wet. V8's are fun, not a necessity.

I hope we're not comparing the potential of our cars and a V8 in this thread....

 

[suicidal2af]

I've already got a 3" exhaust, and I don't plan on pulling it off and selling it anytime soon so I'll probably just stick with that. I also already have a Walbro 190HP. An FMIC is in the near future, but I'm going to get my upgraded turbo first....the Supra SMIC is holding up fine for now.

I've decided I'm probably just going to keep the head and intake stock, except for a 1G TB which I've got on the way (and of course port-match the stock IM).

If torque is your goal, a 3" exhaust is directly conflicting with it. If you want to build an autox car, just find someone who has a 2.5" on their drag car and wants to upgrade, and just trade with them.

What class are you planning on running in? You might want to be careful with your turbo upgrade, as a 14b wouldn't affect your class since it was standard equipment on an earlier year, but going to a 16G would be a neat way to get knocked straight into street modified. And if you're going there anyway, you may as well spend a little bit more on a lot of bit more turbo. Something like an SBR GT-12 or fp3052 is going to produce much more power, and have better transient response due to the ball bearing cartridge