Hey guys,

I am planning to buy a 5th gen Honda Prelude SH. I've done some research and I have read some things about the ATTS disabling once you go turbo and needing a piggyback ecu or something like that...I am coming from a G35 and I want to build an engine that can run against 350Z's G35's s2000's etc....I'm thinking somewhere around 300-400 whp. However, I dont know where to even start when building a motor.

I kno you need an ECU upgrade, headers, cams, intercooler, intake, an exhaust to relieve backpressure, but after that I'm clueless. Of course I'm gonna throw sways, and coilovers but aside from that I have no clue. Can you keep the tech jargon down as well, bc i read through some of the forum and didnt know what the hell they were talking about.

(***Note: I dont plan to do the work myself, probably take it to a shop, but I dont want to get jerked around at the shop when it comes to $$$ feel me?)

So to recap:

1) What is the most hp I can get with bolt-ons? (as I would probably do those those first to hold me over until I go FI)

2) Which bolt-ons would be worth keeping once I go FI

3) Without building the motor, what is the most hp that can be achieved going FI?

4) What is the difference in having ATTS and not having it?

5) What are the shortfalls of keeping the stock ECU with a piggyback vs changing the ECU altogether and losing the ATTS?

6) What upgrades to I absolutely need to go FI and reduce the risk of blowing my motor.

7) Any other tips, suggestions and/or recommendations I would greatly appreciate.

Thanks in advance.

 

I'll reply with a quoted reply I sent to another noob the other day... It doesn't exactly fit you case... but most of the info. should be usefull. Someone said it was a good post for newbies (I'm a noob myself), so here's my advice... again:

************************************************** ***********

I'm interested in doing 'stuff' to my prelude as well. Two months ago I knew nothing about cars cept how to change my oil & brakes... I've been reading LOTS since then. What you should do is... read all of the articles on the how to's in the links here for - - - -
basic prelude knowledge:

https://honda-tech.com/zerothread/689805

here for FI knowledge:

https://honda-tech.com/zerothread/1024174

here for NA knowledge:

https://honda-tech.com/zerothread/1387968

....

The more I read, the more I love my car & everything that's in it. The more I read, the more I realize there's a lot of crap I need to do to my car that I haven't ever done (i.e. maintenance, besides brake & oil...) before I even think about putting power to it.

I think in order to have a really healthy powerful car, you should know as much as you can about it.

I've got to buy my gf a ring & ***** before I turbo my '00 5th gen... but, at least that's giving me plenty of time to learn about my car & how to keep it going strong till then(it's got 140k mi).

I'll be getting my parts together for a turbo in the spring I believe. Possibly an engine rebuild...

Good luck to you. Trick is, is to read read read till you don't have to ask anymore questions... at least ones that don't sound like "GIVE IT TO MEH... THAT'S RIGHT. I SAID GIVE IT TO MEEHHHHHHH!!! COME ON NOW... I NEED IT BAAAAAAAUUUUUD!!!!"

I guess I'll give you some of my limited knowledge tho... anyone please correct me if I'm wrong here at all.

For some real quick basics tho (you need to READ lots anyhow tho)... it's going to be very tough (expensive) getting to 230 WHP w/o boosting...

3 basic boost options:

nitrous = cheap, fast, limited power, decent setup for <$1,000. not sure what the HP output is as I'm not interested in N2O.

supercharger = ~230 HP on stock engine = your goal. $3,000 for a JRSC + whatever else you get to help... exhaust, injectors, fuel pump/rail, intake, maybe header. Most definately want some type of electronic engine management. And, then get a tune... I bet w/ all this setup brand new would run ~$5-6k altogether.

turbo = ~220---->>>> don't really know... they can get crazy high WHP just depening on what all is involved. Cheap turbo setup might run you $2,000 for 230 HP.... to however insane you want to get basically.... I've seen lots of 600+ or more... MAKE SURE YOU TUNE IT, OR YOU WILL BE BUYING YOUR LOVELY CAR A NEW BLOCK.

If you decide to go naturally aspirated, I'm not sure how much you'd have to spend to get to 230...

************************************************** *************


BTW, to get to 3-400 WHP, you'll most likely to rebuild your engine with performance parts... add another $5k to your FI set up.

 

+1,000,000,000 Ok kool, thanks I appreciate it. Thats EXTREMELY helpful!!!!

 

300-400whp i dont think thats streetable.. if ur looking for speed, i think the 5th gen is too fat.

 

yea i kno the 5th gen is a bit of a porker....but i want to be able to run a lil bit and be confident in it but also be able to upgrade....my first thoughts were to go SC but then youre stuck after that...id rather build the motor than only have to upgrade the boost on a turbo setup if i wanted more speed

does anyone know what the power to the crank is?
like if you read the oem hp #s it says an 01 5th gen has 200hp but i kno there is a dropoff. how much is the dropoff? how do you calculate it?

 

im a noob too actually, 200hp is to the crank isnt it? i thought it was lower to the wheels. somewhere like 140-150 for a stock lude i believe

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Archer Troy &raquo;</TD></TR><TR><TD CLASS="quote">yea i kno the 5th gen is a bit of a porker....but i want to be able to run a lil bit and be confident in it but also be able to upgrade....my first thoughts were to go SC but then youre stuck after that...id rather build the motor than only have to upgrade the boost on a turbo setup if i wanted more speed

does anyone know what the power to the crank is?
like if you read the oem hp #s it says an 01 5th gen has 200hp but i kno there is a dropoff. how much is the dropoff? how do you calculate it?</TD></TR></TABLE>

Lol you came from a g35 and your calling a prelude a porker lol. The crank hp is exactly what Honda advertised give or take because every engine is different.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dagle &raquo;</TD></TR><TR><TD CLASS="quote">im a noob too actually, 200hp is to the crank isnt it? i thought it was lower to the wheels. somewhere like 140-150 for a stock lude i believe</TD></TR></TABLE>

About 155-165 whp is what a stock prelude will put down. That is if its a 5speed...

 

i remember there was a thread w/ dyno sheet of a stock one b4 tune 145 and after tune like 153.. guess it depends on dyno and how young the motor is...