I just built a car as a "you can't make a d series go 11's full interior." Platform was my red 99 hatch with a d16 eagle/vitara and stage 2 n/a cam on a .57 trim. It went an 11.76 about a month ago and needless to say he bought the car for what I had in it plus the $3500 bet we had. I took an eerily similar car and built it ground up myself in 3 months. This car got the vitara/eagle treatment with a stock head and cams(fresh tho). All on a .57 trim. I just got word after small issues that the car hit 302whp and 256wtq which is the perfect power for the streets in this fed car. This was done on a .57 trim at 20psi. I have another hatch in the 420s that is a little much for the street.

Reason for this thread is to show dyno numbers but also to see if you guys think the torque is good for this car. I think it's due to the low comp Pistons. I can't wait to pick her up tomorrow and post a dyno graph.also I was at 85% duty cycle on injectors and he wanted to push to 350whp and max them out but i wasn't too fond of that idea. I just bought a focus st and its full bolt ons stage 3 with 46 miles on her lol and I'm afraid she's gonna get smoked by this civic simply because of weight difference. Hoping for low 12 civic and high 12 st. Great for street gambling I should call it and the civic is a clone of my over 420whp high comp hatch so that allows some trickery to come into play.

 

Pics or it didn't happen. Full spec sheet and pics . Would love to see this build

 

I pick her up tomorrow from the tuner so I can show you dyno sheets then. Until then I'll give you a rundown on the build.

D16y8 block .30 over
Ycp vitara pistons
Eagle h-beam rods
Stock head/ cam specs(rebuilt)
BC stiff valve springs(the head was originally built but bcstg2 cam ate journals as well as floated a valve)
AEM adjustable cam gear
880cc injectors high impedence
Dyno Tune by absolute Proformance
Sard fuel pressure regulator
Walbro 320 fuel pump
Stant 170 thermostat
OEM b16 del sol dual core radiator
.57 trim turbonetics(custom .57ar hot side)
Spa cast top mount
Turbo back 3" rear exit exhaust, no muffler
28x12x3.5 front mount
2.5" intercooler tubing
Tial Wastegate w/ spring at 8lbs
Voodoo boost controller
Greddy bov
Stock y8 intake manifold
Gutted pcv valve mounted at bottom of black box to catch can
Stock y8 transmission gearing
Quaife lsd
Spec stage 5 4 puck clutch
9lb flywheel
P28 on hondata s300
3 bar hondata map sensor
Yonaka 60a solid motor mounts(I gambled on these mounts so we shall see)
16" wheels wrapped in advan a048 drag radials on street
Front torque arms (no name)
Innovative Wide band, boost, oil pressure, oil temp

This is what I can remember off the top of my head. To give you a rundown on my stock head situation, I had a fully built head with a stage 2 n/a cam. Needless to say the car wasn't putting down good numbers and vtrc wasn't hitting. So i pulled the valve cover to see that the cam was eating the journals so on a d16 I took my st valves out and put it in a stock head as well as stock cam) it was truly a blessing as the car truly made better power on the stock cam. I also installed bc valve springs that are made for high lift cams. This allows the car to "safely" be revved to 8k but when I see the chart tomorrow I'll set my shift point where she falls off. The car still has a little more in it but the injectors are at 83% duty cycle at 20psi so i told him I'm content where we're at with 302whp 256wtq because my other cars didn't make near that much wtq in comparison to whp. He actually detuned it from 24psi at 352whp to make the turbo happy as it in his words hit a brick wall due to injectors. Looks like I need id1200s.

I will 100% have the dyno graph posted tomorrow evening after I get the car at 6pm.

Feel free to ask any questions as I know I've left out so much on this list.

 

Here's every run starting on the 7lb gate spring and up in intervals

 

no way your maxing out the 880 only at 300. are you at 80%dc at 302whp or 350whp?

i would check the "sard" regulator,

 

i dont see how people struggle to put down 420 on the street. a decent tire and bbg and spin is gone

 

I wonder why theres no 350whp pull on the graph....

Definitely shouldnt be maxing out 880s @ 300whp

 

This car was on and off the dyno a number of times. We had issues ranging from a bc cam that ate the journals on the head, to vtec not hitting due to my ecu missing one cell(if that's the term). It was quite a process and this graph is from the final day starting over with a stock cam so everything changed tune wise. He called me when he hit 302whp when it was on the dyno and asked if i wanted him to keep bumping as he was only at 20psi in that last run. Our goal was 300whp for this car from day one and yes those injectors weren't at 82% duty cycle at 302. It was at 350 when that was an issue. Remember, I wasn't there when he tuned as I'm a sole provider for my family so this is what I was told by Jon @absolute Proformance

I have done sooooo much suspension tuning on my ej6 @420whp and I don't roll around with my tires 8" out the side of my fender so maybe it's coming down to tire size. At the track I'm good 90% of the time tho. I don't have anyone around my area with 380hp and up hatches straight hooking and booking.

 

You were pretty clear 20psi/302whp was were the injectors were @ 80+% duty, and 24psi was the "brick wall" maxed out injector

Im curious why your out on headroom on such a big injector personally, Ive seen 550's do 350whp, yours are quite a bit larger... assuming your running pump gas, didnt see any mention of E85

 

I didn't personally see the injectors duty cycle so maybe I misunderstood him as I was not there for the last set of runs. I bought these injectors to have that head room and know they should be good for atleast 420whp on pump

 

I drove around on 225 50 15 bfg drag radials and had no issues at 400~whp. That's on old F&F type 2's. Now 500+ is a different story. That's why I went to a 26" m&h's tire lol

 

Let me ask you this. How is your bbg set up? Psi wise in first, second and third and on what turbo?

 

Also, I have a limited selection on tires with 16" wheels. On this 302whp hatch I'm running a048 dr because they're the only dr that will fit my car with these wheels and I will not switch to a wheel that every civic in the world runs. Now for the track I slap on rotaslips with slicks. My suspension is dead on for the track but the street is a whole new ball game. I'm gonna work on bbg on the 426whp car and see if I can get a little better traction. My 302whp car also has a048 dr and I worked on suspension tuning all day yesterday on the street and she is on the money. Imo, the best of my cars from a dig on the street.

I'm open to tips on bbg on the 426whp car from you guys with similar power

 

I don't remember what it was back then, it made around 400 on 20lbs of boost on an hx35 (no vtec) I didn't turn it down any, it spun in first obviously but hooked fine after that. Once I fixed vtec and power jumped up to around 500 whp from that alone, I put in a ten lb spring and adjust it using boost by gear by rpm with the s300 until it was hooking decent, then got a 26" tire and spun a bearing going to get them mounted lol. You may need to install a smaller spring depending on what spring you have now, as your lowest boost setting is whatever the spring is. If you are using a Mac solenoid I believe the 3 ports are good for 2.5x spring pressure. Just another thing to keep in mind

 

Yea my spring is a tial 7lb which is 7.2 but whatever lol. I'm pretty much setup for the street on this 302whp car I'm trying to really focus on the 426whp getting to the ground on the street and bbg adjustment is my only tuning left as my suspension is dead on

 

Well do you want sticky tires for everyday driving? You won't find any "all performance" or "summer" tire that will support that kind of torque, only option is DOT R compound tires.

If you stepped down to a 15" wheel you could get all sorts of 205 to 225 tires dirt cheap. As an example, the Toyo Proxes RR DOT competition tire are only 175 a piece.

Then there's others like Maxxis, Hankook, Falken, Achilles, General Tire, Hoosier, Toyo, basically any tire brand you can think of. I'm like an R compound ninja since all of cars are basically track cars with tags lol. Tell me what you want and what your price range is and I can find it.

Just be warned, a sticky R compound DOT tire or flat out competition tire will have shitty tread life, like 3,000 miles on the high side.

 

On the 302whp car the 16" a048s are substantial but like you said on the 426whp car my real only option is to go 15". I have a 2015 st as a daily so tread life to an extent isn't imp to me. My concern is the car is red so I want black wheels and I don't want something every hatch in the world has. I'm willing to spend $2500 on a wheel/tire combo. Any new wheels I may not have come across or opinions on wheels? I also want them to tuck as I don't do the stretch look. Basically 15", black, tuck and different as well as ultimate 225 tire for hookup on the STREET. Want boost you seem to be fairly up to date in the Honda game so I'm interested in your thoughts as well

 

R888's on any rim you like with a budget like that

949racings new wheels looks sick as hell

 

Just looked them up and your right. They're a more modern version of the enkei style imo. That's something id get seeing as not many people have them..... Yet lol

 

I don't see anything about a new set of 949 wheels, only them phasing out a color?

 

Should be fine with neogens at 426whp on a D series. Cant be making that much torque.

 

Neogens are pretty useless to me now personally, a good tire to a point, loved them on low boost, Im at about 23psi right now on my d16 and cant get them to settle down and grip until 3rd, Im looking at an upgrade myself when they are gone (which will be very soon) but R comps are $$$$. Luckily my daily commute is 20 miles

 

Boost by gear? I could dead hook every gear with them properly dialed, and 450whp in 3rd.

225/45/16 R888's are great though. Or NT01's in 225/45/15

 

Why would I downgrade from a drag radial to a high performance tire? The objective isn't to slow my car down to get it to hook on a high performance street tire but to run the most boost possible on the stickiest tire possible and hook and it's not that the nephews suck cuz they're my tears on this car just far from a drag radial.

Also my 302whp car is set with a048's up front I'm looking for the stickiest dr out there for my 426whp car. Don't care about tread life or price. I drive them 5k miles a year maybe. NOT DAILiEd

 

No BBG built into TurboEdit unfortunately