23rd February 2007, 10:31 AM #1 7,000rpm (Peak Power)
My project DC2
sorry there probably wont be alot of pics if any, but i'm willing to answer any questions along the way that anyone has..
Ok I started off with a 240,000km Black DC2 integra.. thanks to ELVTEK for a nice deal on that.... The car didnt have wheels for it so i ordered a set of white 17" DTM's
Its the twin round headlight model, with a type R rear spoiler and a nice front lip that has taken more hits than mike tyson..
It came with a slightly hesistant B18C with 5spd in it..
I changed the plugs and leads and managed to get a little bit more get up and go out of it..
It had a CAI that ran into the front bumper, so I pulled that apart and returned it back into the engine bay and gained a little more power..
After a couple of weeks of driving it I struck a deal to sell my K20A race motor set-up in return I received a B18CR conversion and a few other goodies..
So I pulled the motor out of the car one day and installed the tye R set-up into the car in about 2hrs.. I guess it helps when you have the right tools.. I installed a New stage 4 clutch and flywheel kit into the motor before installing it into the car..
The rear mount was changed to a Nolathenen mount that I bought 2nd hand. the front 2 lower mounts have been urathened up to reduce any movement they have..
When plumbing the car back up I noticed a couple of small things that werent quite the same.. first the vacuum hose on the back off the intake manifold was in a different place from the type R to the B18C, so they needed to be extended.. then the throttle cable was different and was swapped across. One thing I noticed was on the fuel filter the bolt that goes through the fuel line had a bigger hole on the B18C one, so i swapped that across so I didnt have any extra fuel line resistance..
I then fitted a set of hytech style headers which I ported slightly bigger than the exhaust gasket size to allow slightly better flow.. and installed my R-Works N1 style exhaust to the car..
To avoid wiring harness issues I just plugged everything in the engine bay together and installed a Hondata s300 which has the appropriate functions to turn off sensors which cause any fault codes to occur.. I uploaded a base map into the car which made it start and run better..
Then it was the turn for the suspension.. the factory shocks were replaced with Koni adjustables and sprung with nuespeed springs, the omni-skunk-style camber arms were installed into the car on the opposite sides to give better castor for both drag and circuit benefits..
Then the car was off to the dyno at Tuning and Performance in Hamilton..
I ran the car up on the dyno using the ITR base map to get a start figure of 185whp @ 8500 and around 120whp @ 5500..
I then swaped base maps to one that had different timing and similar fueling which saw huge gains going to 190whp @ 8500 and 140whp @ 5500.
Vtec was then lowered from 5500 to 4700 and I started to tune the car.. after about 3 runs we had finished the tuning to have 200whp @ 8000, 185whp @ 7000 but still only had around 140whp @ 5500.. the main gains had been from 6000rpm onwards.. although we had also gained about 10whp from 3000-4500 which was now the new vtec point.. at 5000rpm the car had more than 20whp more than the base maps had given it..
I had also borrowed a couple of intakes from FBI performance in hamilton to test.. I found one that gave good midrange gains between 5000 & 6000 but lost power everywhere else. before settling on a 3" alloy pipe for an EK with ABS.. and running a K&N filter..
Then for abitof a laugh we thought we would chuck the silencer back into the exhaust to see the power loss, but to my suprise there wasnt any, in fact it was actually the opposite, there was small tq and power gains almost all the way through the power curve.. which maybe shows the 2 1/2" free flowing N1 Style exhuast was slightly to big, but I would say not by alot..
Since then I've booked into the NZhondas trackday which I will possibly have to look into changing classes during the day depending on my class and times..
Next week my brake upgrade is taking place thanks to EVLTEK for a huge willwood kit and to Carrerra sports for fitting them.
The brakes consist of 310mm rotors and 4pot calipers for the front, I will be looking into bias controllers once they are fitted and I see what problems I have..
the future plans for the car will depend on how much i enjoy the track day. I may end up building the car into a full blown street-circuit car for a goal of getting close to winning superlap, provided I can drive the thing.
I also have a few parts to fit.
first will be the gizzmo intake gasket I have which will be installed before the track day if all goes well. on installing it the manifold might receive a little bit of work to help it flow better and faster and to allow for future TB upgrades..
I also have a big set of cams on the shelf in my office along with 90% of the parts needed to run them.. which will hopefully go into the motor during the winter months..
overall goals for the set-up is to get close to the 11 second mark in its streetable trim and have a car I can drive more and enjoy..
23rd February 2007, 10:59 AM #2 7,000rpm (Peak Power)
Probably won't be a lot of pics?
I can't even see one.
Sounds like you planned it out nicely. Unlike my project...
Keep it up.
Some pics would be nice too.
23rd February 2007, 11:02 AM #3
23rd February 2007, 11:07 AM #4
23rd February 2007, 01:56 PM #5 7,000rpm (Peak Power)
here is the link to the dyno graph on my profile page, its the engine power.. 3 runs.. 2 base maps and the top is the final tune
23rd February 2007, 02:14 PM #6 Exclusive Member
Good stuff! You found the same differences with the swaps that I have done.
Apart from this
never bothered to check, my bolt is from a sohc D16 motor, however my car was running rich on the dyno, cld it be that this small hole puts added strain on the fuel pump tho. I guessing its not a biggy since im running a sohc fuel pump too. As i said its got more than enough fuel at 8500 and was rich anyways
One thing I noticed was on the fuel filter the bolt that goes through the fuel line had a bigger hole on the B18C one, so i swapped that across so I didnt have any extra fuel line resistance
23rd February 2007, 04:11 PM #7 7,000rpm (Peak Power)
well my car had about 20% to much fuel on the base map I had..
I pulled that out and with the factory pump, reg, filter, injectors I'm running at 94% duty..
I do have a new reg, pump and injectors to be installed before I hit the dyno again..
27th February 2007, 08:24 AM #8 7,000rpm (Peak Power)
well the brakes have been installed so i will be taking some pics tonight after I get the car and posting some up..
27th February 2007, 08:51 AM #9 7,000rpm (Peak Power)
Looking forward to seeing the brakes, any reason why you are rocking (heavy ?) DTM 17's?
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