Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

max rpm of a d15b7

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Old May 20, 2007 | 08:25 PM
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Default max rpm of a d15b7

if i got a chip for my engine and up the rev limit would i blow the engine and how high could i rev it. also is it worth putting a d16z6 tranny on my engine. i cant rev to 7200. help cant afford b series right now
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Old May 20, 2007 | 08:29 PM
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Default Re: max rpm of a d15b7 (little dx that could)

There's a reason your rev limiter is there.

So you wont blow your engine.
As proof it doesn't make power past that.

And it probably doesn't make power anyways 500-1000 rpms before the rev limiter.

Rev limiters are there for a reason, to save motors from drivers Like you who think High rpms = power.

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Old May 20, 2007 | 08:43 PM
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Default Re: max rpm of a d15b7 (ek forever guy)

i no more then you think. my engine doesnt create power after 5900 or 6000. ive heard of people putting a cam in and a chip and runing higher rpms. is the stock head strong enough. what makes the d16 head head sronger besides vtec.
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Old May 20, 2007 | 08:44 PM
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Default Re: max rpm of a d15b7 (little dx that could)

i think an 11k rev limiter will suit your motor nicely
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Old May 20, 2007 | 08:48 PM
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Default Re: max rpm of a d15b7 (nicko360)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nicko360 &raquo;</TD></TR><TR><TD CLASS="quote">i think an 11k rev limiter will suit your motor nicely</TD></TR></TABLE>

At least a 12..

No, you can't just cam and chip any motor and expect it to rev higher.

You need to sleeve, get new rods, pistons, springs, retainers, valves, cams, and headstuds to have a motor that won't blow up. And even then you could only rev it maybe 1-2k higher than stock.

There's nothing paerticularly strong about any of the motors vs each other. The cranks all handle about 600hp.
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Old May 20, 2007 | 08:50 PM
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Default Re: max rpm of a d15b7 (ek forever guy)

well just wanted some input. new to the site. i'll get my b series soon. would the transmission make any difference with the shorter gears?
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Old May 20, 2007 | 08:55 PM
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Default Re: max rpm of a d15b7 (little dx that could)

With a b series you'll want a b16, gsr, or ITR tranny.

In order from best to worst by best gearing it's

ITR &lt; good final drive and LSD in some models
b16 &lt; shorter gears (gearing similar to ITR)
gsr &lt; relatively short gears but good daily setup.
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Old May 20, 2007 | 09:01 PM
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Default Re: max rpm of a d15b7 (ek forever guy)

what i ment was would the d16z6 tranny help out my d15b7 or is it pointless. anything to help the 40 roll.
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Old May 20, 2007 | 09:02 PM
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Default Re: max rpm of a d15b7 (little dx that could)

Yeah, an si tranny will be a good improvement over any other 92-95 tranny.
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Old May 20, 2007 | 09:02 PM
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Default Re: max rpm of a d15b7 (ek forever guy)

rpm does not equal power, the usdm type r is a b16a transmisson not simialr gearing its exaclty the same flase info there again
you cannot just sleeve and build a motor to expect it to hit 11-12k rpm, motors


rpm doesnt make power anyways, your power band stock actually loses power in the higer rpm the reason why you see some motors creep way up is the power band on a turbo widens it


you really need to blueprint and balance and lighten internal parts to get a high revving motor
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Old May 20, 2007 | 09:05 PM
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Default Re: max rpm of a d15b7 (Team RS2)

Do you even know what a troll is?

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Old May 20, 2007 | 09:06 PM
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Default Re: max rpm of a d15b7 (ek forever guy)

ok cause by tranny sometimes grinds into 2nd so if it does go out or if i come across one i'll pick it up.
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Old May 20, 2007 | 09:06 PM
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Default Re: max rpm of a d15b7 (ek forever guy)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek forever guy &raquo;</TD></TR><TR><TD CLASS="quote">Do you even know what a troll is?

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

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Old May 20, 2007 | 09:14 PM
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Default Re: max rpm of a d15b7 (Team RS2)

Actually the ITR had a different final drive and optional LSD.

So no, ITR transmissions aren't indentical to b16s, thus why ITR tranny's go for 200-300 more than b16 trannys

Not to mention 98+ spec ITRs has 36 mm axles instead of 32mm.



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Old May 20, 2007 | 10:04 PM
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Default Re: max rpm of a d15b7 (ek forever guy)

LSD aside, in your oppinion is the ITR trannybetter? Is the ITR final drive better to have than the B16 tranny and its final drive? Is it quicker off the line or faster for top speed?
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Old May 20, 2007 | 10:23 PM
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Default

Your stock B7 sucks and is slow as *****, get over it.

Save up until you can afford a better engine, or charge it - either way, quit bitching. It's a D series motor, it's not made to produce lots of power - it's made for economy.

The Z6 gearing is lower, shorter, but not ridiculously short, so yeah, if you want a cheap upgrade, put a Z6 trans on there. As for upping the rev limiter, you can chip a P28 ECU and remove (or change) the rev limiter. Though there's no use in this since your engine won't make any power above ~6700 RPM (if that).

Any other power, just wait until you get more money and drop a better motor in there or turbo that bitch. D series motors are made for economy.

EDIT:
Not to mention it's funny that you want to "squeeze more out of it" by upping the rev limiter - like a B7 can actually beat anything that doesn't have a **** driver behind the wheel....
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Old May 20, 2007 | 10:49 PM
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Default Re: max rpm of a d15b7 (little dx that could)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by little dx that could &raquo;</TD></TR><TR><TD CLASS="quote">if i got a chip for my engine and up the rev limit would i blow the engine and how high could i rev it. also is it worth putting a d16z6 tranny on my engine. i cant rev to 7200. help cant afford b series right now</TD></TR></TABLE> i would say that the best place for you to start is to take your car to a parking lot and put in reverse turn the steering wheel full left and to brodies until it explodes then ride your bike until you can afford to die on a gsx1300r. your car grinds going into second gear becuase you drive like life is a fast and the furious movie and everybody is driving a 9 second eagle talon on the street. changing your tranny will never change this and upping or removing your rev limmiter will make it worse.
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Old May 21, 2007 | 05:35 AM
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Default Re: max rpm of a d15b7 (solbrothers)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by solbrothers &raquo;</TD></TR><TR><TD CLASS="quote">wtf </TD></TR></TABLE>

Damnit, first team rs2 now him.

Syndacate put it well, the only way to get power out of the b7 is to boost it. And even then it's not a particularly good boost candidate because it's got 8 valves instead of 16.

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Old May 21, 2007 | 05:52 AM
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isnt the itr tranny a 4.4 final drive?
isnt the b16 tranny a 4.4 final drive?

with the exception of the jdm itr 4.7 final drive tranny right?

And the obvious that all ITR tranny's come with a helicol limited slip.

BTW i have a 97 USDM ITR tranny in my car.
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Old May 21, 2007 | 05:26 PM
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Default Re: (92redhatch)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92redhatch &raquo;</TD></TR><TR><TD CLASS="quote">isnt the itr tranny a 4.4 final drive?
isnt the b16 tranny a 4.4 final drive?

with the exception of the jdm itr 4.7 final drive tranny right?

And the obvious that all ITR tranny's come with a helicol limited slip.

BTW i have a 97 USDM ITR tranny in my car.</TD></TR></TABLE>

correct. only the 98+ jdm itr's had the 4.7fd and longer 4-5 gears
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Old May 21, 2007 | 05:29 PM
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Default Re: (doood)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by doood &raquo;</TD></TR><TR><TD CLASS="quote">

correct. only the 98+ jdm itr's had the 4.7fd and longer 4-5 gears</TD></TR></TABLE>

Correct
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Old May 21, 2007 | 05:51 PM
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Default Re: (ek forever guy)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek forever guy &raquo;</TD></TR><TR><TD CLASS="quote">

Damnit, first team rs2 now him.

Syndacate put it well, the only way to get power out of the b7 is to boost it. And even then it's not a particularly good boost candidate because it's got 8 valves instead of 16.

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


my d15b7 had 16 valves of single cam fury
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Old May 21, 2007 | 06:37 PM
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i hate my d15b7 i cant wait to get my b18c1 in a couple months.. if i were u id just blow ur engine up so u can get atleast a b16 witch still isnt a big improvement
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Old May 21, 2007 | 07:32 PM
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Default Re: (95dsol)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crispy93 &raquo;</TD></TR><TR><TD CLASS="quote"> my d15b7 had 16 valves of single cam fury </TD></TR></TABLE>

You must have a jdm d15b. The usdm has 8 valves. Like the op has.
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Old May 21, 2007 | 08:35 PM
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Default Re: (ek forever guy)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek forever guy &raquo;</TD></TR><TR><TD CLASS="quote">

You must have a jdm d15b. The usdm has 8 valves. Like the op has.</TD></TR></TABLE>

Naw, he's right, the only D15 I know of with 8 valves is the D15B8 - '92-'95 CX hatchbacks. The rest of the D15/D16/B16 in '92-'95 USDM motors had 16 valves. Iono much about the D13's though.

The b7 was the DX/LX motor USDM in '92-'95, 16 valve 1.5L non-VTEC.
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