Just wondering but i got a 2001 stock Type R and i am going to start doing some stuff under the hood to it so here goes....

Stuff I'm doing sooner....
1. 205 Yokohama AVS ES100's
2. Injen CAI
3. DC 4-1 Header
4. Carsound Hi-Flo Cat on stock exhaust
5. ATC or Exedy Stage 1 racing clutch

Stuff Im doing possibly later....
1. Toda Spec A Cams
2. Lightened 8 lbs Flywheel, no sure which company yet....suggestions?
3. Cam Gears
4. VAFC

 

Sounds pretty good to me. I would get the DC "JDM" 4-1 header instead of the regualr DC 4-1 header. I would mate that up to a 2.5" cat then have a muffler shop make a piece of pipe to go from the 2.5" cat to your stock exhaust (if you are for sure keeping the stock exhaust).

Suggestions on the flywheel: Comptech.

 

Yeah i ment the JDM style DC 4-1 , I think i will keep my stock exhaust because it seems to not gain much power to switch it and its free flowing as it is, the flywheel sounds good , anyways i heard on here that you can get a cat with a 2.5 inch from the header then a 2.25 to the exhaust so it fits on stock, is this true? Also from those mods what do you think id gain in horse power? 1/4 mile times? Then again i guess 1/4 mile depends on driver alot too, but im a good driver so the times should be pretty good, any kind of info is appreicated....thx


[Modified by 2001TypeR, 9:06 PM 9/2/2002]

 

Just get the JDM ITR header. I made 7 whp more vs. my friend who had the DC JDM header...Oh, I've never heard of an ATC clutch. Do you mean ACT or possible APC

 

Oh i ment ACT sorry, lol, anyways why on the great header test the JDM header did the worst then? That scared me into not getting it lol, so what was your hp on that dyno and what mods did you have done and what was your base stock run?


[Modified by 2001TypeR, 7:28 AM 9/3/2002]

 

Need a catback with all those mods

 

Really, the stock one isn't good enought for that stuff? I thought it was really Hi-flowing.....its not like im upping the rpms redline or upping compression, oh well we will see i guess....

 

A catback will improve flow, but it's not "necessary".

 

If your plan is to get cams in the future you might wanna consider a more free flowing exhaust. You can make power with the Toda Spec A's with the stock exhaust but not nearly as much with say a SMS 2.5 inch exhaust.

For my setup, i dont have cams. I added the DC JDM Header mated with a Carsound high flow cat. I then purchased from SMS Products a B pipe adapter which is bolted to the muffler side of the cat and welded to the B pipe to rid the nasty bottleneck. The only other bottleneck in the system is the muffler but i know that changing mufflers will only make the car louder. I could also go to a bigger piping system but without cams i dont see the gains there. Hope this helps.

mike

 

forget the cai just get a short ram or spoon drop in filter... i would get any jdm 2.5" collector header like spoon,jun,mugen,oem jdm...get a test pipe made and use a act xtreme pressure plate with high perf. full face disc. i would get a more aggressive cams, a jun flywheel... get vafc,cam sprockets, and a fuel pressure regulator for sure...and of course dyno tuning.

 

Well i heard awhile ago that the Juns aren't to great, dunno why tho i don't remember, and im getting the cold air for sure....it's good cuz our cars run crazy hot in the engine bay so its gotta be good for it....

 

Don't understand this advice at all. A CAI can make 5-7 whp on a Type-R. Filter alone is only 1-2 whp. And why would you advise him to put a hot air intake on his car?

 

we have dyno'd numerous cars and a cai makes no more power then a regular short ram intake...

 

also, when on the road, wouldnt there be enough air swirlin up in the motor bay to help a short ram out? thats my justification at least

 

instead of cai, spend money on better header, and use foam filter with factory box. - which draws air outside the engine bay


[Modified by vtec.dc2, 8:37 PM 9/2/2002]

 

Contrary to every comparison I have ever seen here. You have dynos showing 6-7 whp gains from a hot air intake on a Type-R?

 

Lordy - a CAI (Icebox, say) will give about the same gains as a header for a fraction of the cost. The stock Type-R intake does take air from outside the engine bay but it goes through a resonator to do it. As I said before, a filter will give 1-2 whp, an intake more like 6-7 whp. Header will probably five 5 whp.

 

My Suggestions

Stuff I'm doing sooner....
1. Try the Bridgestone Potenza S-03 or Dunlop SP9000
2. Injen CAI - Not bad but your just getting a power spike around 3500 (If you just use a Comptech Foam Filter on the Stock Intake Arm you'll have about the same gains just without the spike. If you have extra money to spend try the Mugen Intake I've seen 8-9 Peak hp gains and close to 10-15 in the mid with a Nice Spike at 3000-4000
3. JDM ITR 4-1 or If you have a bit more Cash the Type One 4-2-1
4. Carsound Hi-Flo Cat on stock exhaust
5. ACT HD/Street Clutch Combo with a Toda Flywheel (save on Labor charges and do them at the same time, Also if you plan on a Final Drive It would also be a good time)

Stuff Im doing possibly later....
1. Toda Spec A Cams
2. Mugen or Spoon .45mm Gasket to Bump up the Compression to 10.9:1
3. Cam Gears
4. VAFC

 

JDM ITR header... ....i went with comptech though...and as for the rest.. ..sounds good to me...

 

ohhyea...and btw....i got 7.4 whp...on the dyno from my AEM intake...so im a CAI fan....latz

 

how many miles did you have on factory paper fitler prior to dyno? what were peak numbers before/after?

 

bought my car with 8k...used ..i put the AEM just after 10k...so it was broken in already

 

THe shortram might make close to the same hp on dyno but when air is coming in faster and faster as you drive, which doesn't happen on dyno, it will make a much bigger difference....Also how much is the mugen intake you guys are talkin about....US...


[Modified by 2001TypeR, 5:44 PM 9/3/2002]