Frankacura

Hi
This is not so fast, but from a B20Z thats it

-B20 84mm stock, Decked by .030 so pistons are 0 to deck
- Hasting rings, cylinder honed
-B20 rods new berings
-Sandwich Vtec oil cooler
-B20Z notched pistons for P8R 33mm valves (about 10.2:1CR)
-AEM cams gears
-Crower 404 III cams Dialed In
-Crower Springs/retainers
-62mm JDM type R throttle
-Type R IM mods to fit NonVtec head
-P8R head shaved .020 Ported/flowed at:
https://honda-tech.com/all-motor-nat...esult-2709206/

- Race Big tube Tri-Y headers, 2 1/2" - 3" Staged exhaust
-J4D-LSD 2001
-New Exedy stage I clutch kit
- we tune it on Crome Gold


Cut Off 9000rpm 23' slick
Hit Cut Off 8800 22' slick

h2.4

What's the chassis weighing in at? Pretty impressive! That 60' is great also! Do you have any dyno #'s

unknown4now

Very nice for a non-vtec setup !

evo_lucian

One of my favorite builds on ht. Lightweight chassis > everything.

Frankacura

I Cant tell the weight cuz i did not weight it yet LOL
I guess 1850 pounds driver in
We had a 3 runs dyno test to see the HP from this motor in my street car full exhaust
it made 212Whp 157TQ 12.7:1AFR
so we installed race exhaust and the AFR went lean side 13.4:1
so we add fuel till 12.9:1 again
But i dont know wats happen with the HP...
I Guess around 218Whp and 160Tq
We only street tuned it from my Integra that ran 12.8@108.9mph on Radial tires

Frankacura

https://honda-tech.com/drag-racing-3...rojet-3207140/

https://honda-tech.com/all-motor-nat...r-iii-3148502/

Frankacura

3 runs Dyno test from that B20Z but Full exhaust on it
In reality we add 1 degree timing after 1st pass and lower AFR from 12.5 to 12.7:1 at the last run
there is the 1st run from street tune and the 3rd one

AllMtrRex

Congrats Frank!

This is basically a stock shortblock B20Z with cams and bolt ons that runs mid 11's. Lightweight all motor FTW! I think you will be surprised but my guess is it weighs 17xx lbs with driver.

0Innes

iTrader: (3)

nice, solid #'s and pass

blackeg

definitely impressive! i like how it did not need super high compression to make the power. that light chassis and 60ft are the key.

just curious, when tuning were you finding power in the ignition timing advance? the few b20's ive done have responded to changes in air fuel moreso than timing to increase power

Frankacura

we tune the timing by usual and ears. at fisrt make it ping around 3000 4000rpm then youll got your pink point at 4000rpm. now folow rules for each 1000RPM added and torque curve,
the timing is on guess now. noting very precise yet. you can listen your motor with tools that increase the ping detonation noise.

Project_EK

iTrader: (1)

Props on the ETs. That thing is flying for the power it makes.

Frankacura

When running 12:1CR you already make the mixture hot by compressing it by a lot.
Running 10:1CR keep the mixture cold and may need more timing to light in proper time.

At 10:1CR you can be Over by 2 degree and you wont even lose power or start to ping.
Some time at 12:1CR your timing would like to be at 31 degree but you get already so hot that 29 degree is your best power, you just dont know that the motor want 31..

Then if you are at 13:1AFR you may try to get mixture rich so colder and then you may be able to add the 2 last degree desired by the motor...
it dos'nt meen that the motor make more HP at 12.5:1AFR then at 13:1
but cuz put the right timing degree give more HP than be at perfect AFR, you may be able to get more hp running richer in this case.
But if you can get the right timing and the perfect AFR of 13:1 you will make more HP.
the Crower 402-403-404 and 405 Cams wont make lot more of power running 13:1CR than 11:1CR unless you are using E85 or Race fuel
On E85 my motor built at 13:1CR could have done around 230Whp against 218
5Whp by increasing point.

I want to built a Vtec motor and use Toda B cams... There at 250 degree duration at .050 you will need 13:1CR

And never forget... cylinder filling is better that CR increasing.. in other words... Head flow and air velocity is everything

Frankacura

Hi and thanks for the coment

when i do the calculation it work perfect with the MPH of my integra Street car
2400 pounds 108mph 235HP
but at 1780 pounds 116MPH leave me very low in HP... 20 less than the 1st combo

Horsepower Design Equation Formula Calculator - Engine Horsepower Trap Speed Method

Car still have stock Front suspenssion + brake, table, LCA, Cross member, Front floor, Hood, fenders, front frame for light, Integra seat, 5/16 lexan not 1/4. 4G fuel cell in trunk and a separator Aluminium Firewall betwen me and fuel cell
I will get a 1G full cell in the front bumper, and remove the Aluminium firewall,
try to find aluminium tables, a front cross member, Fiber Hood...

AllMtrRex

While those calculators are great for ballpark figures. The information they give shouldn't be taken for granted.

Although, I assumed you were making 212 whp from the Dyno. If you are making 230+ and the driver weighs in under 200 pounds then I agree, 18xx lbs territory sounds about right.

aeros

iTrader: (1)

just curious, whats your cam setting at now?

Frankacura

Iv forgot with time. but ill take a look and come back with it.
And you can't compare my position on another motor. My bloc been decked by 30 tow ad the head by 20 so 50 tow in total will moove the gear by about 4 degree backwards

Throwdown

iTrader: (2)

maybe did not catch it but what tires did you make that pass on??? And congrats thats awesome

Frankacura

I did 212Whp but till i changed the exhaust line and AFR went from 12.7 to 13.4:1 so i bring it back to 12.9:1 but i guess the new exhaust increase the HP by 4-6Whp so maybe now 218Whp

Frankacura

M&H 23\8\13

bauergold

Great 60ft!

Keep up the good work!

aeros

iTrader: (1)

Nice I'm doing a similar build like yours and hopefully my numbers will b up there as well. Kudos to you.

Black R

So much good info in this post.

Loving this build.

blackeg

you using knocksense? ive been procrastinating buying it till i build my 11:1 lsvtec

Danger

Sick! not something you see all the time.