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Forum: Forced Induction
03-28-2016, 07:34 AM
Replies: 1
Views: 1,413
Posted By mrx

D16Z2 head compare

Hi,

i'am looking for some experiences concerning the D16Z2 head compared to other D-Series head's.
Of course a Vtec head should give better flow, but how much is it?
and how does the Z2 head...
Forum: Honda CRX / EF Civic (1988 - 1991)
05-28-2015, 08:32 AM
Replies: 7
Views: 692
Posted By mrx

Re: SULEV catalyst

Did a quick research on emission legislations... seems there was not very much pre-LEV1 in 1994... just found some NOx limits on an EPA website.

Can someone tell me which emission limits a 1991...
Forum: Honda CRX / EF Civic (1988 - 1991)
05-26-2015, 09:21 AM
Replies: 7
Views: 692
Posted By mrx

Re: SULEV catalyst

Of course i did a search, but as you mentioned, SULEV is not the correct term... but thanks for the hint, i think that is what i need.
Forum: Honda CRX / EF Civic (1988 - 1991)
05-26-2015, 09:01 AM
Replies: 7
Views: 692
Posted By mrx

Re: SULEV catalyst

yes, exactly... i just need the catalyst. Either as a good quality aftermarket or as a OEM partnumber which i can order from honda directly.
But is has to be a form-factor which could be modified to...
Forum: Honda CRX / EF Civic (1988 - 1991)
05-25-2015, 12:06 PM
Replies: 7
Views: 692
Posted By mrx

SULEV catalyst

Hallo,
can someone please tell me where i can buy a SULEV catalyst (from any model, must not be a honda or a CRX) which could fit in the stock location of a honda CRX from a size perspective?
...
Forum: Engine Management and Tuning
05-16-2015, 10:19 AM
Replies: 0
Views: 1,274
Posted By mrx

Problems with NB simulation on P30 ECU

Hallo,

i have a strange problem and i hope someone can help me out.
Normaly i tune my car's open loop, but this time i have to tune a car closed-loop because it has to pass very strict emission's...
Forum: Forced Induction
11-04-2014, 08:21 AM
Replies: 5,058
Views: 820,079
Posted By mrx

re: ***The Official Nitrous Thread***

Hi,
Spark Plug heat rang does not effect your ignition timing. It determine how much heat the spark plug can transfer to the cylinder head and therefor only effect plug tip temperature and this will...
Forum: Forced Induction
11-02-2014, 11:50 AM
Replies: 9
Views: 509
Posted By mrx

Re: Clutch selection (Tq-capacity vs. material, surface-are and pressure)

Thanks, i will.
Can someone explain how the companies come up with their Tq-Ratings?
For example the ACT XTSS which is rated to 320lb/ft and it saies in the spec's that it can handle 72% over OEM,...
Forum: Forced Induction
11-02-2014, 11:00 AM
Replies: 9
Views: 509
Posted By mrx

Re: Clutch selection (Tq-capacity vs. material, surface-are and pressure)

Thanks so far, this are some options a also came across.
Just took a look for my last dyno numbers and recalc'ed them for you:

it's 321whp and 231lb/ft but as saied, there will be some more boost...
Forum: Forced Induction
11-02-2014, 09:52 AM
Replies: 9
Views: 509
Posted By mrx

Re: Clutch selection (Tq-capacity vs. material, surface-are and pressure)

The Power/Tq numbers in my other thread are BHP, not WHP... just forgot to mention it because they are much more common in europe other then in the states.

My current state is 370bhp but thats not...
Forum: Forced Induction
11-02-2014, 07:01 AM
Replies: 9
Views: 509
Posted By mrx

Clutch selection (Tq-capacity vs. material, surface-are and pressure)

Hallo,

even if not a 100% FI related topic, but i hope here are some ppl around which have experience.

I'am currently in the process of a new clutch selection. Currently i have a 6-puck Sprung...
Forum: Engine Management and Tuning
08-14-2014, 08:39 AM
Replies: 0
Views: 722
Posted By mrx

spec's of a stock B-Series ignition coil

Hi,

not exactly ECU related, but hope it's near enough to be posted here.
As the title sais, i'am looking for the spec's of a stock honda B-Series ignition coil.
Most preferable a B16A2 engine,...
Forum: Drag Racing
07-10-2014, 12:22 PM
Replies: 13
Views: 1,594
Posted By mrx

Re: Need help for a low budget daily driven drag setup

11s would be nice for the beginning...
Forum: Drag Racing
07-10-2014, 10:05 AM
Replies: 13
Views: 1,594
Posted By mrx

Re: Need help for a low budget daily driven drag setup

Thanks,
hope you are not getting me right, even if i have a low budget approach and i would not change the complete design of the car will not mean i don't want to change anything or not willing to...
Forum: Drag Racing
07-10-2014, 09:44 AM
Replies: 13
Views: 1,594
Posted By mrx

Need help for a low budget daily driven drag setup

Hallo,

i need your guy's help.
I have a '91 CRX EF9 with a build B16 GTX2860 turbo.
Making aprox. 350whp at the moment with conservative tune and around 16psi boost
The car is full street legal...
Forum: Honda CRX / EF Civic (1988 - 1991)
07-10-2014, 07:23 AM
Replies: 9
Views: 12,510
Posted By mrx

Re: Increasing alternator voltage by sensing diode?

I'am just looking for a solution to increase the alternator output voltage by aprox. 1volt
Forum: Honda CRX / EF Civic (1988 - 1991)
07-10-2014, 05:12 AM
Replies: 9
Views: 12,510
Posted By mrx

Re: Increasing alternator voltage by sensing diode?

From what i know, the european Model of the CRX Si with B16A1 engine has no ELD?!
I'am aware of the fact that increased voltage will stress Lightbulbs and the Battery.
But i have a special...
Forum: Honda CRX / EF Civic (1988 - 1991)
07-09-2014, 08:10 AM
Replies: 9
Views: 12,510
Posted By mrx

Increasing alternator voltage by sensing diode?

Hallo,

i've read that some alternators can be tricked by inserting a diode in the sensing line of the voltage regulator.

Does someone know or have a tutorial for a '91 honda alternator? Or if...
Forum: Honda CRX / EF Civic (1988 - 1991)
07-13-2013, 07:23 AM
Replies: 0
Views: 690
Posted By mrx

Bolts with Darco Coating

Hallo,

there are some bolds on the CRX which have the addon "(Darco coating)" in the descrition in the EPC, can someone tell me or show me a picture of where's the difference to a normal bolt?
Forum: Forced Induction
06-16-2013, 02:09 AM
Replies: 14
Views: 3,023
Posted By mrx

Re: Improving wastegate response time

Sorry to bring that old topic up again, but i have the same issue, never the less use a much better WG/Manifold design then the Drag/Revhard manifold.

Was there anything which helped?
Forum: Honda CRX / EF Civic (1988 - 1991)
04-23-2013, 06:50 AM
Replies: 2
Views: 612
Posted By mrx

Re: Question concerning Alternator connection

Yes, thats clear, thanks very much... but didn't answered my question exactly.
What will happen if i use one wire from the battery and split it up right before the alternator and connect it to the...
Forum: Honda CRX / EF Civic (1988 - 1991)
04-22-2013, 07:57 AM
Replies: 2
Views: 612
Posted By mrx

Question concerning Alternator connection

Hi,

i'am redoing my wiring harness and have an understanding question.

The wiring diagramm of the honda manual sais the following connection:

- Wht: Alternator to battery before fusebox
-...
Forum: Honda CRX / EF Civic (1988 - 1991)
01-28-2013, 06:38 AM
Replies: 2
Views: 2,039
Posted By mrx

Pins for OBD0 Engine harness connectors - where to get

Hallo,

i hope this is the right place for this.
I'am about to rebuild a new Engine wire harness for my 91 CRX EF9 from scratch.

Can somebody tell me if there is a source for the PINS of the...
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