I sold my 400rwhp twin turbo z last week because someone out of state paid well for it plus insurance will be too high while in college for me to pay for it and still eat daily. I was stuck for weeks between ls/gs turbo or gsr, but considering $ to power ratio and insurance, I think i'm going to build a 2001 5spd 4dr, either white/silver/blue/or black. I've worked on a lot of b18's and a few friends own them so I know the ropes, and I owned a 96 hatch as my first car, but have some q's although I've searched for a while I don't get consistent answers so bare with me.
Thanks for the help if you know anything useful!

Approx. fwhp stock b18 can handle reliably? I plan to tune it well.
Most popular/reliable/cost efficient turbo kits for around 260/300fwhp mark?
What axles/driveshaft/diff. problems might I encounter at that fwhp range and any aftermarket support I can put in to make it stronger?
How do the ls tranny's handle those hp levels long term [friend's heavily raced stock ls's grind at 100k in high rpms], and what clutch/flywheel do you guys reccomend that is strong enough but won't 'eat' my tranny?
Any coolant system problems/upgrades besides radiator I should consider?
Are ARP head bolts/thicker headgasket or something like that recommended?


Again, thanks!

 

Everyone's gonna tell you to search, but I'm bored on a Saturday night, so I'll help ya out.

In fact, there will probably be people saying that even before I finish typing this post. EDIT: Guess not....

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Approx. fwhp stock b18 can handle reliably? I plan to tune it well.
About 8-12psi on a stock block tuned pretty well. Tuning is everything, as I'm sure you know. With bad tuning, you can blow your motor with 1psi. EDIT: I read your question wrong. You were asking how much power a stock motor can take. Well, it's hard to say. The amount of tuning will determine that. You can maybe get 250whp out of 10psi, or you can get 200whp out of 10psi, it's all about the tuning.

Most popular/reliable/cost efficient turbo kits for around 260/300fwhp mark?
Most people here either get custom setups, or the Drag 3 kit, which is good for that power.

What axles/driveshaft/diff. problems might I encounter at that fwhp range and any aftermarket support I can put in to make it stronger?
I'd try to at least get some sort of LSD in there for that power. You'd be known as the one wheel wonder if you were pulling that power without a LSD. They are kinda pricey for the piece and the install (unless you install it yourself). The stock ITR LSD can hold up to about 300hp, but you need to modify your tranny a bit. I can help you with that if you need help. The ITR LSD can take the power, but you can't load and unload it too much. As for axles, try checking out http://www.driveshaftshop.com.

How do the ls tranny's handle those hp levels long term [friend's heavily raced stock ls's grind at 100k in high rpms], and what clutch/flywheel do you guys reccomend that is strong enough but won't 'eat' my tranny?
My LS tranny exploded Well, actually the ITR LSD exploded. The tranny was fine, I think. But I'm not sure. It held up for a long time. I'm sure you'll be fine. LS trannies aren't expensive anyway. I was using an ACT heavy duty pressure plate mated with their 4 puck unsprung hub. It was a bit harsh for the street, but boy was it fun. Once you get used to it, it grabs like nobody's business. If you don't want to go with an unsprung pucked disc, try ACT's extreme pressure plate with their street disc. Most all pucked clutches will eat up your flywheel pretty good. After about 3K miles, my flywheel had a 1mm groove in it, while the clutch disc looked brand new.

Any coolant system problems/upgrades besides radiator I should consider?
The stock Integra radiator usually goes around 100K miles anyway. They have plastic endtanks, which kinda get sketchy after a while. I got a C&R one with their included slim fan. It's kinda pricey, buy mommy and daddy paid for that one as a gift. Lots of peeps just run Fluidyne ones and their slim fans.

Are ARP head bolts/thicker headgasket or something like that recommended?
I'd run at least ARP head studs and a stock headgasket. Your LS compression is fine for pretty high boost anyway. Even the GSR is fine.

Again, thanks!
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Hope I helped a bit. This is all pretty much with a stock motor. If you want to know more, try searching the Forced Induction forum. You can go a long way.

 

I figured I'd have to build the motor somewhat, hopefully the block will be strong enough for my goal. Any recommendations on that also helpful, I'll search FI forum ofcourse though. The only alt. to the ITR LSD I'm familiar with are the Quaife(sp) ones, but those are $$$, I'll be installing everything myself, I don't trust anyone else after owning a couple japanese turbocars [many stories]. I want everything to be overkill/as reliable as possible if you know what I mean, I don't want ANY weak links in the drivetrain if. I don't mind how the clutches feel/pressure as long as they grab and don't rip everything up. Good site on ds's by the way. If I need to open up the motor I'll just buy higher miles and use the money saved on internals. Thanks man, big help!