600 hp 400 r + 500 hp 300r

**Chaz** · 06-11-2019, 10:35 PM

Here's the place to post your dyno sheets , and the steps you took to make those dyno numbers possible !

Don't be left behind ... The future is now !

**Chaz** · 06-13-2019, 11:22 AM

**davemvegas** · 06-13-2019, 11:58 AM

We are all waiting for you to post your numbers up. After you set the bar i am sure the Dyno sheets will start posting on here.

**Chaz** · 06-13-2019, 07:30 PM

Originally Posted by davemvegas

We are all waiting for you to post your numbers up. After you set the bar i am sure the Dyno sheets will start posting on here.

Davie , you know all I gotz is some old azz ring-dings. On my pension check from Burger King, I can barely afford my Flannigans bill .. let alone a couple of these new motors and all the goodies they gots out there fer em ...

**PRE-Z06** · 06-13-2019, 01:01 PM

Chaz, why do you think there hasn’t been any built yet? Is it warranty, cost, weight or the demand just isn’t there? Have any actual hardware changes been made to a 400R or is Whipple the only one who has modified the software?
https://www.speedonthewater.com/in-t...flash-business

**AZMIDLYF** · 06-13-2019, 08:38 PM

https://www.facebook.com/USPMarineTu...ref=nf&__xts__[0]=68.ARBNzj-5d3mvRHnKeDWbTwcqh2nvQOCcYKBx37KDCDPuDxBWPMqTMSvzw9DRn9B3fMedeKuMt5zu22rnukoosvctoL-8a9TIqLlPTLiYDPWG3eQg7Ll5HR77Ye3tv6eCzf9Q70cDD2092bWjbxoOdZX1mnLMmmhHgBL5hqz2x-gpAk80hDZWgPR57HOsO3IdrSAVfk5hpTk5kIrNlEbbVD_luG2mS2c27M-Vu-Mg_w63pGAExtp97NTU8nDhL-9I_blSGqCUleJPZh-PNdgj6BMWofxdG4MH6Jwuzou-xoNJKESnGqe4AJS22KELw_rigPhmOIRJBmGnJ9sZCZXsfCk1RKcqnZnqoJvkkMQYmfGImnGXtifiCwyyc_Mv7dglNSfkdhFZNmz8 QzjMyHoKiCo6YtbKnc6dExmI5PzZOeWi9QYdUgbwb8MRU5ix9iR7TN_HHxxK_z_TyMvjr4j1fosvH2V3w47y2J239191Mbx2yYP0 KJ8QiIRyt03af_8ay9ar

**RSWORDS** · 06-13-2019, 09:27 PM

I know for a fact that merc racing was making over 600 on a I6 verado in the lab. Wasnt reliable at all though

**PRE-Z06** · 06-13-2019, 10:57 PM

Originally Posted by RSWORDS

I know for a fact that merc racing was making over 600 on a I6 verado in the lab. Wasnt reliable at all though

Any details you can share? Post from 10 years ago by Rock says a member who was an intern claimed they made over 500hp reliably...
https://www.screamandfly.com/archive.../t-201820.html

**RSWORDS** · 06-14-2019, 01:50 PM

Originally Posted by PRE-Z06

Any details you can share? Post from 10 years ago by Rock says a member who was an intern claimed they made over 500hp reliably...
https://www.screamandfly.com/archive.../t-201820.html

No details. This was from one the merc racing enginerds. it was a "let's see what we can do before it eats itself" type deal. It lived for a bit, but nothing you'd bet your life on. He said dont ever expect to see a 600+ hp verado because its anything but reliable but they were making well over 400 reliably.

Was also 3 years ago so maybe they have figured out how to make it live.

**PRE-Z06** · 06-14-2019, 07:12 PM

Originally Posted by RSWORDS

No details. This was from one the merc racing enginerds. it was a "let's see what we can do before it eats itself" type deal. It lived for a bit, but nothing you'd bet your life on. He said dont ever expect to see a 600+ hp verado because its anything but reliable but they were making well over 400 reliably.

Was also 3 years ago so maybe they have figured out how to make it live.

I was curious at what Rpm and fuel? The pistons are atleast forged on 400R and you can get up to 5 years warranty on either the 300R or 400R, so these engines are obviously more reliable than past 2-strokes that came out of the Racing department with no warranty and required race fuel. Wonder if heat was the problem on the wicked up supercharged I6?

**RSWORDS** · 06-15-2019, 10:45 AM

Originally Posted by PRE-Z06

I was curious at what Rpm and fuel? The pistons are atleast forged on 400R and you can get up to 5 years warranty on either the 300R or 400R, so these engines are obviously more reliable than past 2-strokes that came out of the Racing department with no warranty and required race fuel. Wonder if heat was the problem on the wicked up supercharged I6?

Really dont know. He didnt go into much detail. He was specific in say that that power level was not any kind a goal for a production motor. Just a fun project to learn from to improve on the production line.

**powerabout** · 06-19-2019, 08:36 AM

Originally Posted by RSWORDS

I know for a fact that merc racing was making over 600 on a I6 verado in the lab. Wasnt reliable at all though

didnt BMW make 1000hp on a 1500cc 4 years ago?

**PRE-Z06** · 06-19-2019, 07:39 PM

Originally Posted by powerabout

didnt BMW make 1000hp on a 1500cc 4 years ago?

You talking about this laggy 80psi screamer?
https://jalopnik.com/watch-bmw-build...-of-1791442165
https://www.bmwblog.com/2017/04/14/3...ormula-1-cars/

**Chaz** · 06-19-2019, 08:03 PM

Originally Posted by powerabout

didnt BMW make 1000hp on a 1500cc 4 years ago?

Next , you'll expect me to know who Hans Stuck is ...

Maybe you can help me .. I'm havin a hard time figgerin out where this last piece goes ...

davemvegas

I am thinking no on the north of 400HP. I am thinking several pistons in the scrap barrel trying to tune the from scratch to 370HP. If you can tune to 425HP. That would be great. You will only need 1 on your boat. And i will trade you 2 lil'Jims pork sammiches for the extra motor.

Just so we have our terminology straight . 401 is north of 400 ...

EGT , O2 , old age , and some pretty smart fellas around me have kept the scraps to a minimum. They made 375 with early model stuff .015 over , 20 years ago ...

I should be able to get there with a stroker crank and .220 over ..

Tell ya the truth, the .220 overs with a std crank are more than enough to make you pay attention . But I've had the parts for a while and I'm not getting any younger ...

Throw in some hot boiled peanuts ... and mannn I'll lose sleep thinkin about that deal