700ish hp Build?

[07GrandTouring]

I'm being honest, I have a buddy that owns an ls1 camaro that is pushing around 500hp. I know what he plans to do in the near future with his car and it's going to be putting down more Hp. Anyways, I'm trying to keep up with him in his Hp gains but the only way that will seem possible would be with boost. So I'm wondering what I would be looking at to rereliably put down around 700ish hp with a blower. The blower I'm looking at is from the Department Of Boost, I have reason to believe it will be enough for what I'm doing, but what else am I looking at? Forged bottom end, ect? (I don't know much about the modular engine, as I'm fairly new to the mustang biz, so I don't quite know the strong and weak points of these motors). And the reason I prefer blower over turbo would be less lag, I already have a full exhaust, and I like the sound. Lol. Also, how much is this going to dig into my pocket, I've got a big budget but just wondering how much the engine would cost and how much I would have left for traction mods.

 

[1fastTbird]

Since you mention DOB, fully read the wonderful tech articles on the website. They do a nice job of outlining everything needed to hit your number. You are on the right track as you will need a built motor, fuel system, TVS blower with 8-rib and good IC cooling system, suspension and tires.

What is your end game: just looking to be faster than him? You may be able to outrun him from a dig with less power and big traction. Or do you need to see that big dyno number as well. What about his car: is it a street car with big wheels and a heavy stereo system, or stripped out track car?

At that power level you really have to love your current car because you are going to spend $20k+ to hit your number reliably. And things still will break. So is this "that" car? Or have you always wanted a GT500 or 5.0?

At that power level you will experience roller coasters of emotion: extreme rushes of adrenaline leading to happiness, and bouts of cursing and anger when things go wrong. Make sure you want to play this game because the bigger wallet will always win.

 

[mrt2you]

i have a 08 bullitt mustang. i make 650 rwhp on pump 93 with a DOB gt450 intake, ported 1st design tvs with the smallest pulley DOB makes, 10% overdrive IW dampener making 20lbs boost, 72mm L&M tb, 123 mm cold air intake with stock MAF, detroit rocker cams, stage 1 FRPP ported heads, AR long tube headers with 2 1/2" off road X pipe and stock exhaust. i have a AFCO 3X pass heat exchanger with a 2013 pump and alloy under hood expansion tank that you can add ice to. i have a complete GT500 fuel system with a boost a pump for the pump. this is about the max hp you can make with a DOB intake on pump gas.
if i added a few ci, larger cams, or better ported heads it would lower my boost a bit but wouldn't really add more power. my supercharger is maxed out, it won't flow more air. others have used newer designed superchargers and gotten a more power than i have. my tune is somewhat conservative, i could add more timing for more power. i am 1/2 deaf so i can't hear detonation so less timing it is. if i used race gas i could add more timing for more power also.
this much power will break your trans so figure upgrading yours with good internals and clutch or upgrade to a 6060 from a GT500 along with a clutch and flywheel.
you will probably have to upgrade the center section of your rear end at this power level. you should also upgrade the rear control arms to help with wheel hop.
TVS is now making a 2650 supercharger, if you get one of them it can add another 100 or more hp over the TVS gen 2 superchargers. i don't think they are for sale yet. i did see a ad in last months hot rod for one to go on hellcats.
also at this power lever you might consider upgrading your brakes. $$ for $$ the cheapest upgrade would be buying takeoff GT500 4 piston 14" rotors and the larger GT500 rear rotors and brackets.

now if i had a big $$$ to spend i would bore and stroke my motor to a 5.3 with good forged internals, get a really good port job on the heads, get larger cams, bigger headers, 3" X-pipe. then a DOB R spec intake with a Whipple 4.0 or larger supercharger, probably put a in the trunk ice expansion tank, and a return style fuel system. with this motor build you should get about a 1000 rwhp and will set you back at least 30K. you will also need to upgrade the trans to a magnum XL too handle the power, new they cost around $3500. now you will need to upgrade the rear end with axles and center section so figure about $1000- $3500 for that depending on how you go. also upgrade the control arms with adjustable ones to help put the power to the ground. you will also need something done to your hood to allow more air thru the radiator and other coolers. by the time you are done you will probably have spent 100K on the car and mod parts.

honestly a HP war is unwinnable. there will always be someone with more power or goes faster. in my opinion and a few others here anything over 650 rwhp is useless on the street. you will just smoke the tires. 650hp can get you into the 9's at the track. to pass tech at the track you will need a 6 point roll bar. this can be made livable on the street. faster than 9's require a cage to crawl over to get in and out of the car.

hope this info helps you with your decision.

 

[BruceH]

The 4.6 mod motor is very well designed. As you noted forced induction will be necessary to achieve the numbers you seek.

IMO 700rwhp is too much for the street and it's exponentially more expensive than say, 600rwhp due to all of the supporting mods and risks.

I've had some experience with built mod motors and forced induction, imo more than about 525-550rwhp isn't going to make any difference for a S197 street car except to make it require more attention when driving in traffic.

I'd say rebuild the block with h beam rods and forged pistons of your choice. That's it. Add forced induction and let it rip. The stock crank is strong, the block is exceptionally strong. It was designed so well that there are side bolts on the main caps. This eliminates crank walk.

Search the site for ideas. We all have different ideas on what it takes to handle power. There are plenty of builds already on the forum, many have been successful.

 

[KatoS197]

Well, I'm going to say it if no one else is -

Your first post is you asking what it takes to make 700hp, and not introducing yourself. Bruce was polite, but also correct in telling you to search the site.

There's TONS of different build threads, detailed with Do's and Don'ts. I get it that you're new to Mustangs, but the car you're wanting to build is 10 years old. Plenty of time to see what people have done that works and doesn't work.

Why are you so caught up on power #'s? I know of an LS1-swapped Miata that makes 4xxwhp but I promise you if you made 450-wheel, it still wouldn't be a close race.

More importantly, is your car stock minus the exhaust? How many miles are on it? Are you prepared to build that motor or build a new one?

What is the ultimate goal of the car? To provide you with Dyno sheets to post on FB? Trap a certain speed at the track?

DOB has a TREMENDOUS amount of information on this forum and tell you exactly how much each kit runs and what's needed to complete it.

Try the "Search" button more and the "Post" button a little less.


#welcome

 

[07 Boss]

Build from the ground up. Tires, wheels, suspension and drive train first. You need a good foundation otherwise having all of that power is useless. You could have 1000 hp but if you can't get it to the ground....

 

[Mr. Q]

Well, I'm going to say it if no one else is -

Your first post is you asking what it takes to make 700hp, and not introducing yourself. Bruce was polite, but also correct in telling you to search the site.

There's TONS of different build threads, detailed with Do's and Don'ts. I get it that you're new to Mustangs, but the car you're wanting to build is 10 years old. Plenty of time to see what people have done that works and doesn't work.

Why are you so caught up on power #'s? I know of an LS1-swapped Miata that makes 4xxwhp but I promise you if you made 450-wheel, it still wouldn't be a close race.

More importantly, is your car stock minus the exhaust? How many miles are on it? Are you prepared to build that motor or build a new one?

What is the ultimate goal of the car? To provide you with Dyno sheets to post on FB? Trap a certain speed at the track?

DOB has a TREMENDOUS amount of information on this forum and tell you exactly how much each kit runs and what's needed to complete it.

Try the "Search" button more and the "Post" button a little less.


#welcome

geezus we're so much nicer than when I first joined.

 

[BruceH]

geezus we're so much nicer than when I first joined.

Well, I'm going to say it if no one else is -

Your first post is you asking what it takes to make 700hp, and not introducing yourself. Bruce was polite, but also correct in telling you to search the site.

There's TONS of different build threads, detailed with Do's and Don'ts. I get it that you're new to Mustangs, but the car you're wanting to build is 10 years old. Plenty of time to see what people have done that works and doesn't work.

Why are you so caught up on power #'s? I know of an LS1-swapped Miata that makes 4xxwhp but I promise you if you made 450-wheel, it still wouldn't be a close race.

More importantly, is your car stock minus the exhaust? How many miles are on it? Are you prepared to build that motor or build a new one?

What is the ultimate goal of the car? To provide you with Dyno sheets to post on FB? Trap a certain speed at the track?

DOB has a TREMENDOUS amount of information on this forum and tell you exactly how much each kit runs and what's needed to complete it.

Try the "Search" button more and the "Post" button a little less.


#welcome

FWIW I'm not a big fan of the "introduce yourself" thing. That's something that for some reason is a big deal on YB, I've never understood it other than to realize it's a reason for otherwise nice people to pile on someone new.

This isn't Yellow Bullet. It's a forum with a whole lot of knowledge and experience with the 3v mod motor. IMO the OP came to the right place to ask his question. Hopefully he realizes how much power 700rwhp is. Numbers are thrown around alot on forums like it's no big deal but it's fairly difficult to build a 700rwhp car that will behave in traffic, be able to use the power, and survive anything more than dyno sessions.

When we think about it a 281 cubic inch motor making over 820 fwhp (700rwhp) is astounding. It's close to 3 hp per ci. However, it's possible and has been done with success more than a few times.

Luckily our members have documented their success and failure pursuing big power builds.

A search will answer most of the OPs questions. Take the time, read it all, and make a decision. Ask any questions you need to but do a search first.