H27 by Pocketrockets Racing

Please keep in mind this is an engine designed for European autocross, it is not a drag racing engine.
I have no problems making a purely drag race engine that can do +25 more WHP than this engine....I am well aware of the K and F20c series and all that Jazz. We are working on them too.
In fact I can make a 2599cc engine with a box in box Wiseco piston with a quite short(relatively speaking) 95.6mm stroke for high RPM all out effort.!!!

This is a Mustang Eddy current dyno, which is known industry wide to read 15% below the dynojet.
It is well known that a standard H22a 190-200 crank HP h22a will make ~160-163 whp on a dynojet ...and 141-144 whp on a mustang dyno.

This engine only has 12.8 : 1 static compression as this is designed to run on and limited to 100 octane fuel.
It also only has 272 degree @ 0.050" lift Crane roller cams, opting for this setup to have a broad midrange torque curve.
We have achieved 267.6 WHP and 200.7 WTQ on the Mustang dyno, Independently done and verified at KVR performance, thanks Edwin and crew!
This translates to ~ 315 WHP and 236 WTQ on a dynojet.
and translates to 361-372 HP / 269-277 ft'lbs at the Crankshaft.
Torque peak is at 5750 rpm and max HP is at 8000-8250 rpm.
Tuning is done here, inhouse.

Our goal was to have 90% of maximum torque, available from 5000-8000 rpm, which we have achieved. I am content with the results.

some Specs of the engine:

92 mm bore x 100 mm stroke
Block uses Custom Darton ductile iron sleeves done by ERL Performance and further modified by us, for this unique application. Thanks to Jeff and Sean and Crew@ ERL
12.8:1 static compression
Importpowerhouse/RMF Custom 4 into 1 header with 2 1/4" collector
TWM 52mm modified Independent Throttle bodies with full enclosed custom PRR airbox, IAC, CAI, K&N air filter, TWM FPR.
525cc @ 43.5 psi Delphi injectors running at 52 psi fuel pressure
External Peterson fluid systems oil pump, wet sump, run from in behind the OEM Honda crank Damper, inline oil filter.
Crane/Ferrea 272 degree @ 0.050" lift roller camshafts
Crower adjustable cam gears
Crower 100mm custom billet crankshaft ....Thanks Brian and crew @ Crower's.
Crower Endurance pro-billet steel rods
Rod/Stroke ratio is 1.58 : 1
Wiseco custom 92mm pistons and rings, lateral gas porting...Thanks Brian and crew@ WIseco.
Ferrea roller rocker arms, valves, springs and titanium retainers
Custom P13 cylinder head with all Porting/headwork done here inhouse
Full 3 inch Thermal Research and Development stainless exhaust system with muffler, rear exit.
Denso IK24 spark plugs with magnecor wires
AEM Engine management System using OEM distributor
Aluminum flywheel.

Dyno run : 3rd gear pull...standard h box gearing....Sunoco 110 octane fuel.... Intake Air temperature were 118F-125F..........idles happily at 1200 rpm.....coolant temps never rose more than 10F during full 3rd gear pulls.

BTW....even with the full roller cams....the car got ~ 25mpg at 75-80 mph .....pulls 5th gear happily from 3000 rpm with less than 0.75 volt knock...LOL
I think I better make a 12.5:1 vtec one of these for a street motor....yippee....lol
I already passed emissions with a 2.2L 12.5:1 stge 4 Crower cams, so the bigger motor should be no big deal......lol

Video clip: right click/save as<U></U>

vids are in divx format, requires dix codec,
http://www.divx.com/divx/download/

The Driver's Education guy some years ago said it was perfectly legal to accelerate as fast as possible on an onramp to merge into traffic!

http://www.pocketrocketsracing...1.avi

and merge again....speedo BENDS to the right somewhat!
comes out of 3rd at 108

http://www.pocketrocketsracing...2.avi

cold start up

http://www.pocketrocketsracing...t.avi








Modified by PocketRockets Racing at 12:47 AM 10/7/2005

 

VERY NICE!

 

I'm impressed to say the least. Very well done

 

Nice.

Whats the purpose of the window on the plenum? Looks like too many screws to make it quicker to get to the horns, so what were you guys watching for? Or am I way of course?

 

92mm bore is BIG.

Is that an RMF header?

 

well, how would you install the plenum on the manifold? and then install the horns after that?....I could make an aluminum plate instead......but I thought it was better with a lexan cover...no extra weight, so it doesn't slow the car down....lol

I highly doubt I will ever have an F40... but I like the minimalist designs, so i try to make a serious racer but still maintain streetability to be able to enjoy it everyday. The ITB setup shown here I use on the street.

Underneath this plenum is the Idle air control valve(IAC), the fast idle valve, the Intake Air temperature sensor(IAT), Map sensor, separate vacuum manifolds for the powerbrake system and Map Sensor all neatly tucked in underneath the airbox.



Modified by PocketRockets Racing at 12:02 PM 9/21/2005

 

thats sick.

 

RMF, yes......cool guy!
I have recently asked him to do a special header for me....Indy car quality.
I gave him total freedom of design. We will see what master piece he comes up with.

 

yes, 92 is very big, nice to be able to completely slide a hand down the bore....lol
It is an offset bore......its the only way to pull this off.


Modified by PocketRockets Racing at 7:36 PM 9/19/2005

 

i wonder who spent more,
endyns customer, or pocketrockets customer


good job guys its nice to see nice#'s out of a h22

 

Nice Work.

Now run that baby out and see what she'll really put down.

Any pics of the block before the ehad went on?

 

Crower is well known for very very strong cranks. Its a billet, so right there, its $2400 ahead of any engine using a standard honda crank.
this engine has seen 9K, numerous times...........the Mustang dyno seems to hit peak HP and stops.......the power does start falling off, but it keeps pulling very hard to 9K


Modified by PocketRockets Racing at 7:43 PM 9/19/2005

 

doublepost

 

yes, there are plenty of pictures....I am not too keen on releasing them, though.
maybe down the road.

 

scarry !!!!!
hey , why dont you just put it to the 1/4mile and let us see what it will do there..... 10 sec 4 sho

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jt-sport &raquo;</TD></TR><TR><TD CLASS="quote">scarry !!!!!
hey , why dont you just put it to the 1/4mile and let us see what it will do there..... 10 sec 4 sho </TD></TR></TABLE>

running it down the 1/4 is not part of the agreement, we can build you one though and your more than welcomed to run it.....lol.
I have another block sleeved and ready to go!!!!

Modified by PocketRockets Racing at 7:58 PM 9/19/2005


Modified by PocketRockets Racing at 8:15 PM 9/19/2005

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PocketRockets Racing &raquo;</TD></TR><TR><TD CLASS="quote">yes, there are plenty of pictures....I am not too keen on releasing them, though.
maybe down the road.</TD></TR></TABLE>

Understood. to posting your numbers.

 

wow....sweet *** set-up, and one sexy motor, especially the ITB plenum

any more pics of the motor/car? civic chassis?

 

You have the 3" exhaust as needed for that kind of displacement, but if you can get a header specifically designed for that displacement I bet another 5-10 horses are available. That 2 1/4" collector is limiting, it should be 3", which means the primaries should bump up as well to compliment it.

 

Mad props. Very original setup.

 

So is that the engine you were referring to when you said my golden eagle sleeved block was a minor setup lol! Good work Frank!

 

carfuel whatyou say about the collector , randy no fool .lol
the 2 1/4 is used to accelerate the exaust gases , im sure it steps up to 2.5 or 3"
a carfully placed and set up collector will make or break a header ,

 

Nice socks Haha, seriously though. Very nice numbers. Wish you had a pic of the cylinder walls. I know my 90mm was pretty thin. Nice work!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by shdriver99 &raquo;</TD></TR><TR><TD CLASS="quote">So is that the engine you were referring to when you said my golden eagle sleeved block was a minor setup lol! Good work Frank!

</TD></TR></TABLE>

yeah.....lol....we all have to start somewhere though!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2lude4u &raquo;</TD></TR><TR><TD CLASS="quote">You have the 3" exhaust as needed for that kind of displacement, but if you can get a header specifically designed for that displacement I bet another 5-10 horses are available. That 2 1/4" collector is limiting, it should be 3", which means the primaries should bump up as well to compliment it.</TD></TR></TABLE>

well, get me a header that makes more torque and power and I will use it!