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Hitting 400whp

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dsmmichael

dsmmichael

10+ Year Contributor
58
0
Jan 7, 2012
Palmdale, California
Have a big 16g and noticed in the dyno thread that some dsm's have passed the 400hp mark with a 16g.


Currently I have:
Forged Pistons
Bored .020 over
272cams
evo 3 turbo w/ported exhaust housing (ported)
750cc fuel injectors
255fuel pump
Intercooler (stock supras all aluminum intercooler)
Eliminated Balance Shaft
Radiator is a 3 core aluminum radiator
Act 2100 Clutch
Crushed 1st gen BOV


The car still has not been tuned, nor dynod.

What would you recommend upgrading/doing to make help the car hit that 400hp goal.
 
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What kind of fuel will you be running? If you are planning on doing this on pump gas, look into meth/water injection. If you plan on e85, get some bigger injectors. Also, what are you using to tune? Do you even have a wideband o2? And you might want to look into a front mount intercooler instead of that supra smic i assume it is.
 
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No, no afpr. How would I find a good one? I have no clue when it comes to afpr LOL.

Also what are good engine rods to get? My rods are still stock, I heard H-beams are good but I'm not sure what a good brand is or if it doesn't matter and I can get some on eBay.
 
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Don't get eBay rods. If you look on extremepsi they sell afpr kits for 160 I think. You can adjust you fuel pressure since the Wally will over run the stock fpr. I don't think you'll need rods at this point but that's more of an opinion. People have gone far with stock block.
 
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jpmxrider489 said:
If you look on extremepsi they sell afpr kits for 160 I think.
Click to expand...

Don't guess, look it up. The cheapest AFPR kit on extremepsi is $210. EXTREME PSI : Your #1 Source for In Stock Performance Parts. However, having an AFPR won't effect you hitting 400hp. It will effect idle and cruise drivability but not WOT.

You will NEED another clutch. My ACT 2100 started slipping with a 14b somewhere around 300hp. I would recommend you look into South Bend Clutches (which is what I am using now): TMZ Performance

What pistons do you have (Brand and CR)? I have 8.3:1 Wiseco's on the stock 6 bolt rods and I would feel comfortable with 4-500hp with my setup. It is largely in the tune.

You said you are using 91 octane gas? I would get a meth injection setup or switch to E85 if it is available in your area.
 
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I'll definitely look into another clutch!
I have wiseco forged pistons 8.3:1 compression ratio as well with stock rods.
If I decide to get rods what would be decent brand?

Also what is a good brand/type of fmic? Does it make a big difference in piping size? 2.5" or 3"?
 
Upvote0
Punishment Racing's fmic setup will be good enough for your goals. You also need a wideband asap, I'm kind of stunned that you have link already but not a wideband. If you really want to build the motor (you won't need to on the stock block if you have a good tune) I would always suggest Eagle rods. They're affordable and hold good power. If you drive the car a lot I would suggest the ACT 2600 with the street disk, it will hold the power you're looking for without sacrificing drivability.
 
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VR speed factory Fmic kit will yeild yo 400+ whp easy, local made 498whp on his.

Aem or innovative wideband

Aeromotive Fpr or Aem

Pretty much should do it for you, with a good tune you should be close.
 
Upvote0
Alright Thanks!

So it looks like i need:
Punishment Racing FMIC
AFPR
ACT 2600 with street disk
meth injection setup
Eagle Rods
Wideband o2

And this should help me hit my goal.
What would you recommend would be the first thing for me to do?
1st ACT 2600
2nd wideband o2
3rd afpr
4th fmic
5th rods
6th meth injection

What would be a good starting point?
I have $1200 that i'm working with right now, so I would be doing things piece by piece as $$$ comes in.

@Doubleot Great thank you!
i'm looking at an AEM Wideband, the wideband is to monitor the air/fuel right?
 
Upvote0
dsmmichael said:
Alright Thanks!

So it looks like i need:
Punishment Racing FMIC
AFPR
ACT 2600 with street disk
meth injection setup
Eagle Rods
Wideband o2

And this should help me hit my goal.
What would you recommend would be the first thing for me to do?
1st ACT 2600
2nd wideband o2
3rd afpr
4th fmic
5th rods
6th meth injection

What would be a good starting point?
I have $1200 that i'm working with right now, so I would be doing things piece by piece as $$$ comes in.

@Doubleot Great thank you!
i'm looking at an AEM Wideband, the wideband is to monitor the air/fuel right?
Click to expand...


In my opinion you don't need meth, just run E-85, you will need bigger injectors though. And yes the wideband monitors the A/F ratio. You need to do a whole lot of research and reading before you start tuning though, unless you plan on taking the car somewhere reputable to be tuned.

Also, if it were me I would run the car on the stock block, like I said before, if it has a good tune on it it should be fine. There's a LOT of cost factors besides the cost of the rods that go into building a motor. The cost adds up quicker than you can believe.
 
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Yeah it's amazing how quick money can be spent!
I'm planning on taking it to RoadRace Engineering to be tuned, they have a great reputation when it comes to anything dsm out here in SoCal.

I drive the car once to two times a week from Palmdale-LA (50 miles one direction)
And I'm not sure how an e85 tune would be while driving that distance.
 
Upvote0
You're gonna go through a lot more gas on E-85. If you just want to hit that magical 400whp mark you can always get a race gas tune along with a pump tune for every day driving.
 
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With the amount of mods and cash you have 400hp is kind of be hard to get to.

1st ACT 2600----- or 2900 or South Bend.
2nd wideband o2 ----- This is a must.
3rd afpr---- good to have
4th fmic---- Heat soak sucks.
5th rods---- Don't bother
6th meth injection----- or 116 octane
 
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Flat out you are going to find it very hard to hit 400 whp on a 16G. There are very few people who have done it and they are guys who have had lot's of experience tuning DSMs. Not saying it can't be done but don't be upset as your car will feel damn fast with anything over 300whp.

And RRE is a great place to get tuned, I think the thing I may miss most about living in So Cal is being near RRE.

And I have my car tuned for E85 but for the amount you drive your car I would say a meth injection kit controlled by ecmlink will be your best bet. Safe and you don't have to always worry about how far from an E85 station you are.
 
Upvote0
Raymond1927 said:
With the amount of mods and cash you have 400hp is kind of be hard to get to.

1st ACT 2600----- or 2900 or South Bend.
2nd wideband o2 ----- This is a must.
3rd afpr---- good to have
4th fmic---- Heat soak sucks.
5th rods---- Don't bother
6th meth injection----- or 116 octane
Click to expand...


I just placed my order for my AEM Wideband o2, AFPR and Meth Injection kit, as for clutch I really love my ACT 2100, so i'll probably just get the ACT 2600.

I'm still looking for Intercooler kit, I'm looking on ebay but no luck so far. Many universal brands but i'm unsure on their reliability. I may just pay the extra penny to get the Punishment Racing intercooler as recommended earlier.


SOADweskey said:
Flat out you are going to find it very hard to hit 400 whp on a 16G. There are very few people who have done it and they are guys who have had lot's of experience tuning DSMs. Not saying it can't be done but don't be upset as your car will feel damn fast with anything over 300whp.

And RRE is a great place to get tuned, I think the thing I may miss most about living in So Cal is being near RRE.

And I have my car tuned for E85 but for the amount you drive your car I would say a meth injection kit controlled by ecmlink will be your best bet. Safe and you don't have to always worry about how far from an E85 station you are.
Click to expand...

Yeah I actually never knew it was possible to pass 400hp with a 16g until I read the dyno results within this forum. My original plan was to get a 20g to hit the 400hp goal.

I'll see what I'm able to do and pull out of this 16g, if it doesnt hit the 400hp mark, i'm still going to be proud of what it is pulling!

I'm assuming with what my car has right now i'm pulling close to 300hp if not a little more.

I Agree! RRE is a great place!


With the Meth Injection Kit that I ordered, will my 750cc fuel injectors be sufficient?

I know I asked this earlier and the response was 1200cc and 2150cc but I believe these responses were for an e85 tune.
 
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