Quote:
Originally Posted by 1998Z28
More maintenance, probably, but a street driven car is not going to be buzzing around at 9,000 rpm all the time. If we drove around at redline in anything, I'm sure we'd see more problems.
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My Integra Type R comes stock with a factory fuel cut of 8600 RPM, I've been running a stroked sleeved 2.2 liter with a Jun III can and peak Hp is just about 8800 RPM and I shift at 9600 RPM. The engine has been over 10,000 at least a thousand times over the last two decades. I also have the original engine, original bore with light weight rods 280,000 psi bolts, light weight 12.5 forged pistons and the same cam above peak HP was about 9400 RPM, shit at 10,000 RPM. The engine has gone 180,000 miles and I've just finished a re-ring with total seal rings (still stock bore, stock bearings, stock crank, stock bearings). Just in case my teenage son blows the current engine up, which he tries on a daily basis. So with VTEC you basically have 4 complete cam for one engine. I there is a rare two stage VTEC that would be 5 cams.... Oh HP is about 275 HP on 2400 lbs. Guys with the K20 to K24 are at 310 HP NA on 2000 lbs in hatch. My 2015 SI supercharged is at 450 ish engine HP on 3000 lbs.
I will point out that the last Vipers do at least have a true cam overlap changes that really helped (cam in a cam). No not VTEC but least it is true overlap manipulation not this pretend variable valve timing which is just simple cam phasing.
http://www.hotrod.com/articles/how-t...ts-horsepower/
I did a lot of racing back in the day with Toyota 2TC and 3TC hemi, these were OHV, with dual 45 side drafts and shimmed rockers to prevent them from walking, I'd pin the 10,000 RPM monster tac at shifts about 9500 actual RPM. bout 210 engine HP from 1.9 liters. The OHV heads could take more N20 or boost vs the DOHC Japan only 3TG heads. I can't say these were 100,000 mile engines, I'm just pointing out there was a least OHV engine in a street car that would rev.. Crazy world back then, the racing all went to Puerto Rico where they did a lot of Toy and Mitsu 2.6 liter racing. And yes my Corolla was about as quick as my 440 Dart.
Note mine but this is how crazy the OHV hemi got:
https://www.google.com/search?q=3tc+...3cMDqWSiHV_nM:
http://hmongbuy.net/video/vNIxImBJFS4
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.