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[TTC]

I put one in ages ago thinking no way i would need bigger. But im wondering if i need a 255 to hit 300whp.

16v 4age, 550cc, small 16g

[92CXyD]

I put one in ages ago thinking no way i would need bigger. But im wondering if i need a 255 to hit 300whp.

16v 4age, 550cc, small 16g

I would use the 255 just for the insurance.

But I also look at cheapest route first. ;D

[jarebear667]

use an evo 8 pump.

[Robb]

use an evo 8 pump.

Those are only rated at 160, despite what the internet would have you believe.  That being said, evo's make 300+ on stock pumps all the time. 

190 is plenty for your application. Change your fuel filter, and watch your afr's.  If you are running out of fuel, you will know. 

[Teg2boo]

In the same subject, what is the rate of honda gas pump?

[TTC]

use an evo 8 pump.

Those are only rated at 160, despite what the internet would have you believe.  That being said, evo's make 300+ on stock pumps all the time. 

190 is plenty for your application. Change your fuel filter, and watch your afr's.  If you are running out of fuel, you will know. 

That is pretty much what i figured, thx Rob.  If i add fuel and it doesnt richen then i need a bigger pump.

[patsmx5]

miata people use 190HP walbro pumps all the time for 300whp. 255 is kinda overkill, and supposedly at higher pressures and lower volume rates, the 190hp is actually the better pump.

[Joseph Davis]

255 is a 650+ whp pump.  What's 74.5% of 650+?

In the same subject, what is the rate of honda gas pump?

If you run 12 gauge power and ground to the factory pump, 325 whp Mustang/375 whp Dynojet.  Honda-Tech will tell you "300 whp" or "impossible"

[patsmx5]

255 is a 650+ whp pump.  What's 74.5% of 650+?

In the same subject, what is the rate of honda gas pump?

If you run 12 gauge power and ground to the factory pump, 325 whp Mustang/375 whp Dynojet.  Honda-Tech will tell you "300 whp" or "impossible"

484.2500000000000

[Teg2boo]

255 is a 650+ whp pump.  What's 74.5% of 650+?

In the same subject, what is the rate of honda gas pump?

If you run 12 gauge power and ground to the factory pump, 325 whp Mustang/375 whp Dynojet.  Honda-Tech will tell you "300 whp" or "impossible"

Good to know. I don't think I make more than 250whp

[caged]

There are lots of CDM 190lph pumps out there which iv seen a few problems, I run a genuine 190lph walbro and im around 300rwhp.

[Robb]

There are lots of CDM 190lph pumps out there which iv seen a few problems, I run a genuine 190lph walbro and im around 300rwhp.

Seems like the CDM pumps are hit and miss.  Ive ran them in my last 3 builds with no problems.

[caged]

There are lots of CDM 190lph pumps out there which iv seen a few problems, I run a genuine 190lph walbro and im around 300rwhp.

Seems like the CDM pumps are hit and miss.  Ive ran them in my last 3 builds with no problems.

That pretty much sums up CDM parts, hit and miss lol

[patsmx5]

There are lots of CDM 190lph pumps out there which iv seen a few problems, I run a genuine 190lph walbro and im around 300rwhp.

Seems like the CDM pumps are hit and miss.  Ive ran them in my last 3 builds with no problems.

That pretty much sums up CDM parts, hit and miss lol

I was gonna say the same thing, blanket statement right there.

[Joseph Davis]

There are lots of CDM 190lph pumps out there which iv seen a few problems, I run a genuine 190lph walbro and im around 300rwhp.

I've never seen or heard of a problem with the CDM 255's.  Which are what most people who think they have Walbros actually have.

[caged]

1st one stripped the plastic gears and the second one just went dead. mabey its cause im on the other side of the equator, water swirls in the opposite direction apparantly :yes: