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Engine & Performance Modifications
Discuss Engine and performance modifications from intake to suspension to rotors to etc. :) |
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#1 (permalink) |
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Get sucked in...
Join Date: Jan 2002
Location: CA
Posts: 4,736
Car 1: 91' 3.5lt Extreme DV8ED Hybrid 6spd Car 2: 03' G35c Blk on Blk Car 3: 92'Yukon/06'Trailer iTrader: (11)
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Dv8's Legend (Chronicles and Articles)
Ok first off, we will start with the order i discovered it all myself.
-Ordered up a pair of RL HG's. They matched to the legends perfectly. Bought a Chiltons manual, readily avalible at any auto store. In the manual it speced out every acura engine since 94-01. in the spec sheets i did the classic compare and contrast. Obviously the RL block was stroked 300cc's bigger with no bore size increase. the HG's told me that and the manual confirmed. Also the compression depending on the manual publisher said both Legend and RL Use the same compression ratio 9.6:1. To me that confirmed the piston would be a flat dish and they changed crank shaft geometry and rod length. The PART ive been holding my tounge on for all of you guys Always bring up Fuel management is the fact that the RL's Heads are completley detuned and slightly different than the Legends. -Legend has 3 intake cam lobe heights Primary Middle & Secondary -RL has 1 intake cam lobe heights Primary It didnt take a genius to figure that that ment the rl had less topend, even if i didnt understand what it all ment at the time. It seems that the RL physically is missing cam lobes on its cam shafts, that also means that there alre less rockerarms. Lastly for all you FUEL nuts, the Valve diameters. The TYPE I Legend Intake valve is 1mm smaller than the TYPE TWO, however the RL is about 4-5mm smaller. Smae goes for the Exhaust valve. Right there i knew that i wasent going to have Lack of fuel problems. Next i located a RL block at my local junk yard which was convinent. It was still in a 98 RL special edition, heads and everything. The heads however were damaged. i struck up a deal and got to dissasemble the whole engine myself after the cut it out of the car. I had a blast, i got to see the whole thing and i got to take everything apart myself so i knew everything was done right. First thing i saw what that although the topend lookedsimilar to the legends, parts were either changed around or gone completely. -fast idle tube was gone(big black tube on the Left side of the engine) -Fast idle valve was relocated from the back of the intake manifold to the top of the Intake manifold were the TB connects too -Coolant sensors were swaped around in the intake manifold water passage - intake air sensor was relocate to the back of the i. manifold -fuel rail looked different, smae layout but square not round. -injectors had different wire harness connections Thats about it. I pulled everything apart and got the block home. I ran the VIN off the RL and it came back as a wreck in may 02 were the engine had 32,8**. That made me happy. The block sat a while while i took it further apart checking teeth on the timming belt,cam sproket, and crank sproket. Matched it up to the legends and it all came out the same, except the timming belt it was 1 tooth longer. under further investigation it appers honda increased the deck height of the block to compensate for the added 300cc's of stroke. I made no other thought about this othe than the fact i need to to use the rl timming belt, which i was right, but later i still got bit in the A$$. ******* I waited on my Level 10 PTS kit to arrive before i dissassembled my car. I was assured by SAM at level 10 that the PTS kit would greatly improve shifting ability and be even more powerful with they're high stall Torque converter. I bought both but the T-C was a retrofit of my own, so i had to tear apart my tranny to get it . The PTS kit arrived and i took the engine out of my car. taking out the engine took me 4 hours, easy since i did it before. Everything went smoothly, i took out the T-C and sent it off. I called up 13 tranny shops to install the PTS kit and went to 1 with a friend that was buds with him. I got the same answer everywere. NO. The main reason was liability, who's to say that if in case of failure it wasnt the parts or the labor? Nobody wanted to take the chance-not even a liability waiver. I did have 3 guys say they'd do it, but id have to pay for 10-14 hours of rebuild time as specified by thier rehaul book on Legend trannys. That equals about 1300+ over here in labor. The main question i posed SAM at Level ten was the cost for install on a loose tranny, he said no more than 6 hours install; around 500 bucks. I also found out the PTS kit is a soft overhaul kit not a full overhaul, so that means that all the real mecanical parts arew not replaced only the ones that are in constant use. what good would that do my 160+k tranny? exactly so i scraped the idea of wasting money on the install or buying a younger tranny etc. Sold the PTS kit on ebay and lost 100. oh well at least i had the T-C on the way. I prepped the block and during my prep work i was swaping all nessasary part over the the new 3.5. Starter,Diff, etc. When i came to the front engine mounts i bolted up the drivers side and then the pass, when i started to turn red with nerves, i couldnt belive what i was staring at, the mount engine bolt pattern on the pass side was different. i swore i made sure both were the same as the Legend, looks as though i was wrong. i didnt know what to make of it i started to think about the cash i already spent on the block and what i would need to overhaul one of my other 3.2's. I said F it went back to the junk yard and picked up the rl mount. as they looked kinda similar i traced out a pattern that would cut the leg off the 3.2 mount and the same for the 3.5. using the engine bolt pattern of the 3.5 and the leg of the 3.2 i devised a totally one off custom mount to fit the engine and mount. As soon as the T-C came i got ready to drop the block in with the tranny attached and put the heads on later. Although i discovered this before, it worth metioning that out of the six bolts that bolt the tranny to the engine block only 5 line up, it wasnet a a big deal since the one bolt wasent in the end or top of the pattend i thought, but because of the added balance shaft the block is a full half circle rather than the 3.2 blocks half circle with a downward slope on one side. The install was a little more nerve racking than the unistall. mid mounts and tranny mount didnt want to line up so i had to take many trys until they did. trust me it was no fun AT ALL. after the block and tranny were seated i bolted the heads, everything was going smoothly and quickly now, i could feel the start of the car within a couple hours, untill i layed the intake manifold on the heads and it DIDN'T FIT. continued next post ~True Hybrid
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AEM EMS Powered. 9 yrs and counting. Results, Where are yours? 12.953@107.865MPH 95 deg. Jun. 07' 3.5 6spd-#55 jet Nitrous 316WHP@5500RPM 345Lb-ft@4100RPM NOS 06-07'N/A 234WHP@5700RPM 229lb-ft@4600RPM 06-07' 13.782@99.135MPH N/A 95 deg. Jun 07' 03' G35c Auto Vortech Supercharged pshhhh 14.3@96MPH-Stock 8 page spread Honda Tuning September 06' issue No Phone or Instant message, PM or Email only. Respect that! My Legends Website www.2slik4u.com Last edited by Dv8 : 09-23-03 at 04:35 AM. |
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#2 (permalink) |
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Get sucked in...
Join Date: Jan 2002
Location: CA
Posts: 4,736
Car 1: 91' 3.5lt Extreme DV8ED Hybrid 6spd Car 2: 03' G35c Blk on Blk Car 3: 92'Yukon/06'Trailer iTrader: (11)
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So the manifold would bolt to the pass head studs but not the right, it looked as though it was further apart. first thought was that the RLs i manifold was wider, so i went to the j yard and picked it up. i quickly noted the sensor differences, fast idlevalve relocation and the biggest one of all were the radius hole-to channel in the upper inner portion of the i manifold. they looked like individual TB's rather than regular channels like the TYPE I and II. A lot better intake manifold design in my opinion. i took it home layed it on and it didnt fit either, thats when it hit me, the deck height was taller and so it must mean the Legend heads are taller than the RL's heads, and that folks it were this whole project gets real custom.
I opt for the RL's imanifold even though mine is ported and polished, i love the relocation of the fast idle valve, no fast idle tube and the real cool radius cut channels, beside i would get some money back from my p&ped type II to pay for the custom work about to be done to the rl manifold. im Sorry for all you true legend fans out there but i had another type two stock i manifold and i sacrificed it to the hack saw gods in order to figure out how i was going to make the rl i. manifold fit. It came down to lacking 3/8 in from left to right. so what i did was split the difference 3/16 each side(centered it by sloting all 8 bolt holes on the i. manifold. the end of each runner was bearly covering the intake ports on the head, so i had 3/8 weld added to the end of each runner, added weld on the inside back of the runner and lastly shaved diagonally so that it basically lengthened the runners. granted the injectors are poping out more torwards the center of the head intake ports it wa the best that could be done on a budget. Next up was extending the water passage that accomanies the I.manifold. i layed it accross the heads and made marks, i cut them on eithr side od the part that plugs into the thermostat housing. bolted each side down and used plumers strap with self tapping screws to create the spacing needed to be welded. once welded i had to gring a lot of the i. manifold and the passage to make the passage bolt holes line up. i ended up having to drill out the water passage bolt holes bigger to give me more bolt range. it was a shame when i was pouring coolant and it started to leak out one side of the passage. the passage obioislywasent wlded perfectly flat and so it was creating a gap. first solution was to grind some more. didn work. final solution after trying others was to buy gasket material and make another gasket to offset the gap. At that moment everything finally came together, i started her up and listend to it pur. Not a tick was heard. again like most of the rebuilds ive done to this legend i never trip a check engine light and it started on the first try. however i was leaking some oil from the front og the engine behind the ac compressor. I completed the rest of the car in drivable form and took her out on her maiden voyage. car felt the same driving normal-gentle for about 15 minutes i slowly gave it gas(Stock ECU) and let go to feel any differnces, little but i noticed some extra -small punch. granted i was giving it very little throttle. later that night after putting on the hood and establishing the car was leaking nothing other than some oil, i took her out again with a friend. Normal cruise again until he hit a stop light. i tell my friend to watch the throttle % on the apexi SAFC, when it turned grean i mashed it only 47% and to my astonishment i light up the tires like i was droping the clutch in 1st on a manual. amazed by my new found torque i got a little more risky and did it again at 58% throttle, once again i lite them up. not getting to carried away right before arriving home i floored it for a breif moment, the high stal torque converter live up to expectations and riped through all of 1st half of 2nd and squealed 3rd. Yes life is good with a 3.5 lt Legend Hybrid. Further driving proves this whole swap was a huge sucess, although it involves lot of customization it can be done. price breakdown I got a deal on pratically all of this stuff 600 short block 100 I manifold 25 RL mount 250 clean out inspection and lifter check and replace on my existing TYPE II heads(this was nessasary since i had lots of previous lifter ticks due to the compound used for the previous copper HG's) 50 acura RL HG's 50-100 (free for me- machine shop hook up)custom mount merge 250 i manifold weld,resurface radius and gasket match ports only 175 fluids-paint atf-engine oil coolant,ps 600 Level 10 high stall TC cost 401 sold 300 lost 100 Level 10 PTS kit 50 misc drill bits taps etc around 2300 total More driving establishes the fact this car has huge balls now off the line i can stall at 2300 and totally rip the tries through 1& 2 or i can just punch it while at a stand still or at 40 mph- the end result is the RPM's hit between high 3k-mid 5k depending on engine speed and totally take off. mid 14 second car or faster N/A for sure. here come 12's post anything now. ~True Hybrid
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AEM EMS Powered. 9 yrs and counting. Results, Where are yours? 12.953@107.865MPH 95 deg. Jun. 07' 3.5 6spd-#55 jet Nitrous 316WHP@5500RPM 345Lb-ft@4100RPM NOS 06-07'N/A 234WHP@5700RPM 229lb-ft@4600RPM 06-07' 13.782@99.135MPH N/A 95 deg. Jun 07' 03' G35c Auto Vortech Supercharged pshhhh 14.3@96MPH-Stock 8 page spread Honda Tuning September 06' issue No Phone or Instant message, PM or Email only. Respect that! My Legends Website www.2slik4u.com |
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#4 (permalink) |
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OLD SKOOL P*MP
Join Date: Feb 2002
Location: Edmonton
Posts: 234
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daaammmnnn ... and just when i thought my wish list of mods was getting too long ...
great job dude ... props on ur great accomplishment
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<br> http://members.roadfly.org/blingless...rumsavatar.jpg <b>1995 Acura Legend LS Coupe *SOLD*</b> <b>Mods:</b> Euro Clear Bumpers Compustar Keyless Entry/Remote Trunk/Remote Starter/Alarm JDM One-Piece Headlights w/H4H Hyperwhite Bulbs H&R Springs Koni Adjustables Debadged Acura Emblems On Trunk Shaved Antenna/Mouldings/Keyholes/Rear Side Markers Moulded Factory Lips to Body All Round w/ Custom Body Line Blacked Out Custom Grills Repainted Entire Car Pearl White 18x7.5 +45 Nakayama 6 Speeds in Hyperblack <b>Mods to Come:</b> JDM One-Piece Headlights w/HIDs Blackout Bezels in JDM Headlights Powdercoat Custom Grills Foglights MLS Bar Bayou Stage II Chip Ground Wire Upgrade <b>Mods to Purchase:</b> JIC Magic SF-1 Coilover Suspension DV8 CAI DV8 Exhaust/Header Upgrade w/Hi-Flo Cat Remus Exhaust Brembo Crossed Drilled/Slotted EBC Green Stuff Brake Pads AEM Big Brake Upgrade 75 Shot NOS Full I.C.E upgrade with TV/DVD, custom trunk http://www.imagestation.com/picture/...c/fb5f0e40.jpg |
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#5 (permalink) |
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*r**h *eller
Join Date: Jan 2002
Location: Rockville Md
Posts: 1,943
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Legend has 3 intake cam lobe heights? Send me some of that dope your smoking.
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Started rebuilding IC engines in 1968 at the US Merchant Marine Academy. Don't think you know more than me about auto/IC/control systems unless you can document your education. |
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#6 (permalink) |
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"the Don"
Join Date: Jan 2002
Location: Toronto, ON, CANADA
Posts: 989
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All I gotta say is WOW! So what's next? :cough: HEADERS! :cough: ![]() G
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1995 Legend Coupe 6-speed Carbon Black Metallic 208 WHP @ 6250 RPM 189 FT/LB @ 5250 RPM MUSTANG Dyno 260,000mi and counting WeaponR Secret Weapon Intake - Cold Air Box - Custom 2.5" stainless exhaust system - Remus Rev3 Universal muffler -SPEC Stage II clutch - 5speed flywheel - SR5GUY Chip - APEXi S-AFC - Pullies - MLS copy strut bar - Short Shifter -18" ICON W65 Wheels - KONI reds/Ground Controls - Slotted Brembo Rotors - SS Brake lines - Walbro 255 -ICE |
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#7 (permalink) |
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legendary!
Join Date: Jul 2003
Location: Rheinland Pfalz- kaiserslautern, GERMANY
Posts: 1,046
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ur one badass kid dv8! this is some serious ish..... we need to make an award for this kid. it can be dipped in chrome and be a lil legend modle car bolted to a piece of wood lol maaad probs man....u got my respect
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http://www.imagestation.com/picture/...c/f98053bf.jpg Proudly serving in your military you only live once, live it up! Vehicle & Vehicular Equipment Mechanic Apprentance legendcoupe93@yahoo.com 15% black tint koni/Ground Control SPC ball joint Enkei LM1 18" x-drilled slotted rotors kenwood 7inch touch flip alpine type R 10" sub no name amp 300w mcCulloch 5000K H.I.D. bayou chip new type II type S door speakers pioneer 4 way 6x9 Im broke! |
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#8 (permalink) |
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ALPHA *O*R*NG
Join Date: Feb 2002
Location: South FLA. O-Town (SKOOL) Ft. Lauderdale (HOME)
Posts: 764
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I dont wanna sound rice or anything, but these 3 lobes on the intake... wouldnt that be like V-Tech?
but it is like 3 stages instead of 2. How does the engine make the change from Primary~>Seconday~>Third one? Like V-tec? with oil pressure building up to push a Pin to move to the next lobe. The theory its the same Idea. Its KINDA like V-Tec? Or its even better than V-Tec. Also hurry up and run that beast at the track, off the line power has me all giddy. Last edited by LegendTypeRKon : 09-23-03 at 03:47 PM. |
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#10 (permalink) | |
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88 sleeper
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Quote:
But what you've done to your car is simply amazing.
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http://img326.imageshack.us/img326/8836/sig7yg.jpg |
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#11 (permalink) | |
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WHAAAAAH!
Join Date: Jan 2002
Location: N Canton, Ohio
Posts: 10,983
Car 1: 3.5L 1991 LS Coupe 5 Spd Blk/Blk Car 2: 1994 Civic EG Hatch Car 3: 03 Honda TRX400EX iTrader: (2)
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Quote:
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#12 (permalink) |
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ALPHA *O*R*NG
Join Date: Feb 2002
Location: South FLA. O-Town (SKOOL) Ft. Lauderdale (HOME)
Posts: 764
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CAM LOBES...
Like on the CAM SHAFT Im not saying we have V-Tec.. Duh, honda would have postered it all over the engine! Someone needs to comment and figure out why we have these 3 lobes at different heights and compare it to honda v-tec lobes and cams |
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#13 (permalink) | |
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*r**h *eller
Join Date: Jan 2002
Location: Rockville Md
Posts: 1,943
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Quote:
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__________________
Started rebuilding IC engines in 1968 at the US Merchant Marine Academy. Don't think you know more than me about auto/IC/control systems unless you can document your education. |
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#14 (permalink) |
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Registered User
Join Date: Jan 2003
Location: California
Posts: 2,201
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great job, which year RL engine did you use by the way?
you should let an acura dealer know about this, they'd probably flip. i know they would at the one next to me. any pics?
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http://www.safetygears.net |
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#15 (permalink) | ||
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Get sucked in...
Join Date: Jan 2002
Location: CA
Posts: 4,736
Car 1: 91' 3.5lt Extreme DV8ED Hybrid 6spd Car 2: 03' G35c Blk on Blk Car 3: 92'Yukon/06'Trailer iTrader: (11)
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Sorry DAVE Ive never done drugs and never will. Legendtyper stop posting in my thread about your Vtec rants, i dont want to read it. The Legend doesnt have it, PERIOD. And no i dont confuse one thing with another. Give me some freakin credit i think i know what im talkin about. ~True Hybrid
__________________
AEM EMS Powered. 9 yrs and counting. Results, Where are yours? 12.953@107.865MPH 95 deg. Jun. 07' 3.5 6spd-#55 jet Nitrous 316WHP@5500RPM 345Lb-ft@4100RPM NOS 06-07'N/A 234WHP@5700RPM 229lb-ft@4600RPM 06-07' 13.782@99.135MPH N/A 95 deg. Jun 07' 03' G35c Auto Vortech Supercharged pshhhh 14.3@96MPH-Stock 8 page spread Honda Tuning September 06' issue No Phone or Instant message, PM or Email only. Respect that! My Legends Website www.2slik4u.com |
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