Turbo questions - Honda Prelude Forum

twonslude · 03-11-2007, 07:10 PM

So here's the deal, I have absolutely no idea what kind of turbo to get. I'm not a mechanic, but i know what i want, and that's horsepower. Lots of it. I'm in the process of building my H22 so that it can withstand the boost. I guess i want to be somewhere around 400-450whp by the time it's all said and done. But i seriously don't know what's too much or not enough to help me get there. Thanks.

IALuder · 03-11-2007, 09:09 PM

im running a gt35R on my h23/h22 hybrid. the turbo is good for 350-600 whp.

snotshake · 03-11-2007, 09:19 PM

You know, there is a forced induction FORUM regarding virtually any question you could have about FI.

petern101 · 03-11-2007, 11:14 PM

Quote:

Originally Posted by twonslude

I'm not a mechanic, but i know what i want, and that's horsepower. Lots of it.

Quote:

i need two bottles.......and i need them TONITE!!!

seriously, it sounds like you need to do ALOT of researching or money throwing.

actually, in the end, you will do both. search in these forums and hondatech

then come back and you could ask the wealth of knowledge PO has to offer when you ask specific questions

twonslude · 03-12-2007, 09:35 PM

Well i've done researching. I understand the basic principles of FI but i don't know specifics about turbo's. Like i said, i'm not a mechanic and when i look at specs on cetain turbo's it might as well be in a diff language. I've heard good thing about the GT35r, and one guy i work with swears by turbonetics new stuff. I know i want ball bearing because they spool faster, i just don't know which one will support my application the best without losing my daily drivability and the ability to still use pump gas.

IALuder · 03-13-2007, 10:06 AM

if your worried about gas mileage and reliablity leave it stock and go with bolts ons. if your still no matter what wanting to go boost do a junkyard set up with the parts off a dsm. just buy an manifold to fit the h22 head and turbo.

spin_r_g · 03-13-2007, 12:04 PM

In my opinion after all said and done 400-450 WHP on a prelude isn't much of a daily drivable car.

IALuder · 03-13-2007, 12:18 PM

^agreed.

twonslude · 03-13-2007, 01:12 PM

Quote:

Originally Posted by spin_r_g

In my opinion after all said and done 400-450 WHP on a prelude isn't much of a daily drivable car.

Why?

petern101 · 03-13-2007, 01:20 PM

^because you are pushing the limits of just a turn key normal car

when you modify something to the near extreme (and a 400 hp h22 is near extreme) you just can't do certain things you normally could do.

1. maintaince is always more of a pain and things wear out faster
2. normally you always have to be weary of what gas you use
3. overheating risk
4. something goes wrong and it could go really bad

i'm sure you could come up with a few examples of "but this prelude ran it daily and it was fine!!!!"

its just how it is. you are living on a thin line when it comes to something that highly modified.

McLude · 03-13-2007, 07:22 PM

I disagree with some of these statements. My car threw down 384 on a mustang dyno (loading dyno), so I'm pretty sure I'm in the 400's on the dynojet now and just a few pounds shy of solid 400s. I drive my car every day and I love it.

1. You have to keep an eye on stuff yes, but it's a small price to pay for the fun and power. Remember what uncle Ben said, "With great power comes great responsibility" but it's worth it, ask Spiderman haha.

2. The 5th gen preludes and I think pretty much all H22's demanded premium fuel from the factory, so being weary of what gas you use is really a non-issue if you were complying with factory instructions to begin with. As long as you are properly tuned, all that matters is that you run premium pump fuel, which you should be running in any serious performance car anyways.

3. On a properly built and tuned turbo car, overheating is not an issue. My car doesn't overheat at ALL. In fact while tuning it was running just as cool as stock and I have a stock radiator. IMO that's a myth.

4. Yeah something can go wrong, but if you properly build and tune, the chances of something going wrong are much much lower. The mere vague possibility of "something going wrong" shouldn't be a deterrent from your goals and dreams. A very good friend of mine has practically the same spec mods done to his Integra and he's making similar power. It's his only car so it's his daily driver and he has 14,000 miles on the car and he's upping the boost because it's running so well.

All that being said, you definitely have to take careful steps to make sure you do it right the first time or else you will end up in a world of hurt. Ask me how I know. But it is totally realistic and possible to have a 400+whp Prelude that you can drive daily. The key is quality workmanship and proper tuning.

petern101 · 03-13-2007, 09:55 PM

^not every city is blessed with premium fuel...

i run an advanced timing and while my engine works fine for 93 octane in dallas

its a different story when i head back to my hometown of amarillo. there they only have 90 octane and in the surrounding areas. so when my car bogs down and i get horrible gas mileage, i think of the nearest 91 octane gas station is 200 hundred miles away.

like i said, there are obviously going to be some guys running that much power with no issues, you said youself you learned a "lesson". obviously someone asking this question might not know the in's and outs and those are definate issues

McLude · 03-13-2007, 10:03 PM

Quote:

Originally Posted by petern101

^not every city is blessed with premium fuel...

i run an advanced timing and while my engine works fine for 93 octane in dallas

its a different story when i head back to my hometown of amarillo. there they only have 90 octane and in the surrounding areas. so when my car bogs down and i get horrible gas mileage, i think of the nearest 91 octane gas station is 200 hundred miles away.

like i said, there are obviously going to be some guys running that much power with no issues, you said youself you learned a "lesson". obviously someone asking this question might not know the in's and outs and those are definate issues

do'h, didn't know about that. It is possible, but tuning is key in that situation. There are plenty of turbo Honda guys in CA that have to run 91. My main point was to rebut the assertion that a 400whp was not daily driveable, because I know first hand that it is. It sucks, but I like to think that I learned those lessons so people like him don't have to and I'd like to help out as much as possible. That's why this board exists, so we can guide him through the ins and outs. It's definitely a serious undertaking that requires the utmost care, skill, patience and research, but it is an attainable goal that is quite satisfying.

petern101 · 03-13-2007, 10:45 PM

^of course