Steeve_Civic

Running MSD box and MSD coil and would like to change to CPR on hondata.
Is it worth?
My spark plug gap is .21 at the moment.
My setup is around 750hp (best trap is 158)

Is there any back to back about this switch?

SwappedTURBOegg

my fwd car trapped 153 on 100% stock ignition(lots of stock ignitions going very fast out there) heavy ek street car on s300. why are you upgrading having problems? kiss if not surprised you got your msd box to even work.

rudebwoy

iTrader: (1)

the reason I switched to CPR was because ignition was breaking up above 7000rpm, turned out the problem was not the MSD but a faulty harness, I changed to rywire... but ever since I switched to CPR everything is perfect.

luck4rmkc

iTrader: (2)

My CPR has been working great @ 750whp

Steeve_Civic

No problem at all with my MSD box and MSD coil even at 9500rpm.
Just asked If I could keep standard gap (.027) on my plugs in order to get more ignition.
Do you think I need to change If I go over 800hp?

phantom_bcw84

i did that exact same swap. went from MSD box and coil to CPR and that was the best mod i have done to date. i was getting ton of spark blow up in high rpms changed to CPR and never had a problem again!

i was able to make my gap bigger when i swapped to CPR

Steeve_Civic

Thank you which MSD coil were you running?
How many rpm had you problems?

phantom_bcw84

i had the HVS II big blue msd coil. and i dont remember what RPMs i was having issues. i just remember i was having lots of issues with spark blow out.

i rev to 9300 RPMs and since i changed haven't had a single problem and it helped soooooo much

kcevo

I run s2000 coils on my setup with a .015 gap. NGK BKR9EIX plugs. I rev to 11,000 rpm no problem and see 45+psi of boost down the track and trap 175mph in the 1/4. Still on the same plugs for over 100 dyno pulls and 25 track passes and not one hint of break up. Love the coil on plug and the security of not having a failure of a CDI box possibly (been there at an event). I run MoTeC M800 and a 16v system too.

Steeve_Civic

You should put over .015 gap I think.

Thank you

Steeve_Civic

What is your spark plug gap?

phantom_bcw84

my spark plug gap i think is .24 now. with the MSD stuff it was like .13

Steeve_Civic

Is CPR working fine with S300 v1?

Turbokraft

CPR works fine w/V1. I have it on my daily street car now w/over 4000 miles. Starting time is increased by about one second otherwise you don't know it is there.

Steeve_Civic

Thank you, I m going to go with the deal!

Steeve_Civic

Where can I buy the Q37 transistor?

rudebwoy

iTrader: (1)

did you mean Q31 ?

Steeve_Civic

Not Q37
Coil Pack Retrofit

rudebwoy

iTrader: (1)

it should come with the CPR.

Steeve_Civic

Yeah you right, just got the answer

Steeve_Civic

Still didn t switch, any idea If it could get me some more hp past 850hp?
Rev at 9800rpm and 33psi of boost without ignition problems

Steeve_Civic

I heard it was more difficult to start up, need a better battery, is it true?

king06

iTrader: (1)

At 33 psi I'm pretty sure your going to have spark blow out, IF the igniter doesn't crap out first.

I just picked up my CPR, and it increases crank times by about a second, but at that much power I'm sure you won't be driving it on the street so I don't see why a hard start would even matter. Also, I haven't seen anything about needing a better battery anywhere. I don't see why you would.

Steeve_Civic

Thank you