Bremset: 1991 CRX VT på E85

27 november 2007, 00:20

Vi Tunet denne i dag etter montering av hondata s300 og 550cc precision dyser.
Bilen går nå på E85, målet var å få så mye som mulig ut av en nesten orginal motor

den hadde gått i overkant av 170.000km

Bild

-blokken er en 100% uåpnet stock b16a1 (150hk ny "orginal",125-130whp)


-Hondata s300 mappet av AT-performance.
-Original innsugsmanifold portet til et gasspjeldhus som er 62mm
-Skunk2 stage1 kamaksler m justerbare kamdrev tunet av AT-performance
-Justerbar bensintrykkregulator
-4-2-1grenrør, original katalysator,
-2,5” egenprodusert eksos fra cat
-Integra type R ventilfjærer

Bild

Om dere ser på effektkurven er den noe krøllete, dette er grunnet resonans fra filter/røroppsettet.

det mest ideelle var å tunet rørlengde samt ført mer kald luft inn i filteret.

Effekten dere ser er 149,6whp hvilket tilsvarer ettellerannet sted rundt 175-180hk

27 november 2007, 00:47

bra svar på effekt med så små mods :thumbup:

men vridet är :crybaby:

edit: så är det på de flesta honda maskinerna förståss

27 november 2007, 06:14

Think, E85 is a good thing for us with Turbo.
Cool the engine hehe.
Torque e bra, men de ska ner i backen också.
i roligt å spinna bort allt

Mvh

27 november 2007, 06:21

hellre spinna bort vridet än att totalt sakna det oscii.. man får ju ofta fäste förr eller senare..

27 november 2007, 06:52

Jepp, lite dåligt me vrid i en N/A b16a ja.
Vrid vers effekt kan man diskussa all evighet
finns väl nån balans nånstans.
Mvh

27 november 2007, 08:50

fint!!
Hur många grader extra tändning mot "vanlig" bensin kör ni?

ska bli intressant till våren när jag mappat o bänkat min.. borde kunna få ut lite mer än så.

stock B16a1 block
S2stage2 kammar
mugen ventilfjädrar, s2 titanretainers
lätt portat AEBS insug
S2pro 68mm spjäll
3-Y longpipe grenrör
ingen kat
388 spridare
E85

27 november 2007, 19:39

In my view it is the average hp that matters, torque only describes the strength of the work the engine develope.
power is a total description of how much work the engine can do in a matter of time.

To simplify things.

take two humans for example.

-The first man can lift stones weighting only 10kg at the time, but he can nearly throw 12 stones in one second.(weak guy Lot of work but at high revs "aka" a
Honda, and can move 720 stones at 10 kg in one minute. 7200kg pr minute

-The other guy he is strong, and he can lift stones up to 100kg at the time but he`s slow only one rock in one second.(Strong guy, lot of torque but acts as a diesel engine not so much work even dough he can take one big stone at the time) he moves only 60 stones pr minute and will only be able to move 6000kg stones in one minute.

Does it matter how strong you are, if you can do more work with less strength?

Now take the gear box. what you can really call it is a torque converter. it multiplyes the torque by many times. so what you want in a racing world is a engine that can produce a lot of work in a short amount of time and as high as possible average power, and a engine that can carry the power as far as possible.
If you need torque, get yourself a better finaldrive :whistling:

In that way you will convert the work being done in to raw strenght just by multiplying the engine torque.
The b16a1 had about 680N/m axle torque in 4th gear becouse of the gearing, the turbo integra I had previusly had over 2700N/m on 3th gear. Now that is something we call torque.

The power indicates how fast your car accelerate. (The weight of your car slow the work down.)
The torque indicates the strenght of the engine, but not how fast it can use its strength to accelerate your car.

If you want more technical we have started to write in tech section on our site and describes what we think matters when it comes cars.
we have not written to much but eventually we will have a lot when I take time to write more.

<a href="http://www.at-performance.no/html/tech.html" target="_blank">http://www.at-performance.no/html/tech.html</a>

28 november 2007, 07:20

Do you got some rules about Ignition
searched but not getting any good info.
I know E85 is pretty new hype in US and international,
but it would be very interesting to know what thoughts you have
about it.
mvH

28 november 2007, 10:45

oscii skrev:Do you got some rules about Ignition
searched but not getting any good info.
I know E85 is pretty new hype in US and international,
but it would be very interesting to know what thoughts you have
about it.
mvH

Jeg har ingen generelle regler ang tenning, det er ingen generelle regler.
Tennings tidspunktet avhenger av motorens dynamiske kompressjon, oksygeninnhold i forbrenningskammer, hvilket type drivstoff, utforming av forbrenningskammer, stempeltopper, motorens fløde motorens VE etc.

det er så mange faktorer som spiller inn at om jeg skulle fortelle deg hvordan denne ble mappet blir det sannsyneligvis helt feil på en annen modell.

Du har heller ingen direkte regel på bensin heller. eneste du vet er at makstrykket skal komme litt etter ØD og man vil prøve å holde forbrenningstrykket så lenge av en forbrenningstakten som mulig.
(trykket avtar jo lengre stempelet går mot ND. )
Siden bensin har en forbrenningshastighet på ca 25m pr sekund og den bruker noen millisekuder på å antennes vil man nødvendigvis starte forbrenningen litt før ØD.

28 november 2007, 12:04

Fina siffror!

men varför har ni katalysatorn kvar? :whatever:

28 november 2007, 12:13

Micke 16v skrev:Fina siffror! men varför har ni katalysatorn kvar? :whatever:

Fordi eieren ville ha den der og den ble levert med katalysator