ClaudeMachining

There is after market needle kit for all pwk type carbs out there... Envoyé de mon SM-S908W en utilisant Tapatalk

Nope. It's in mm. A 120 jet is 1.20mm diameter. Envoyé de mon SM-S908W en utilisant Tapatalk

Start by turn in the air screw 1/4 Envoyé de mon SM-S908W en utilisant Tapatalk

Like usuall, uccr test and report back. For pump gaz, you stay in the 12ish range, with 0.045" to .050 squish Envoyé de mon SM-S908W en utilisant Tapatalk

Uccr test and report back. Envoyé de mon SM-S908W en utilisant Tapatalk

Good!!! I had a DL 421, it was a great engine. Envoyé de mon SM-S908W en utilisant Tapatalk

I got a +2 with my Clark tank. Envoyé de mon SM-S908W en utilisant Tapatalk

Welcome to the BHQ. Envoyé de mon SM-S908W en utilisant Tapatalk

With 110, you can go higher than 13:1. Start with timing at 4, .048" is ok. I'm not familiar with the alcool setup, maybe another member can guide you with that. Envoyé de mon SM-S908W en utilisant Tapatalk

Your math are good, but my question is did you remove the spark plug volume??? Usually, we fill it to the top, then remove 2,4cc (volume of the spark plug hole) That make a big difference. See the pic. Envoyé de mon SM-S908W en utilisant Tapatalk

12.5 uccr and 190 psi static comp sounds weird to me. Show me your numbers. Did you remove the cc of the spark plug from the equation??? Envoyé de mon SM-S908W en utilisant Tapatalk

Yes UnCorrected Compression Ratio. Your static compression is kind of low, you can probably use smaller domes, but without uccr test, it's kind of hard to tell. Bill should know the numbers by heart since he's doing this days in days out. Envoyé de mon SM-S908W en utilisant Tapatalk

I'm way more than a simple engineer. ;-) Envoyé de mon SM-S908W en utilisant Tapatalk

You should always run the least octane your setup can take. Do a uccr test and report back. Lower than 12, you can put smaller domes. Envoyé de mon SM-S908W en utilisant Tapatalk

Yes it can be. Envoyé de mon SM-S908W en utilisant Tapatalk

Goats ftw!!! Envoyé de mon SM-S908W en utilisant Tapatalk

I'm using Kehin pwk 39mm because I'm used to set them up. I dont have any experience with the smartcarb/lectron stuff. As far as fuel, just tell the builder what fuel you will use. Your 97-100 ron fuel is the equivalent of the premium pump gaz (92-93) here, so that make the uccr in the 12ish range Mine was set to run Avgaz (105) , so my uccr is higher. I have 2 sets of domes, the 30cc are 178 psi kick compression and the 31cc are 168psi. I guess that 12.5 uccr will have something about 140-150psi, depends of the port timing and squish. Maybe you can look for the late RD 350 tranny, they have longer gearing iirc. Mine was done by Joe Morinali, and i have all the mods in it (pro mod) Envoyé de mon SM-S908W en utilisant Tapatalk

I dont have much to say. It look like you did your homework. Redline is for sure, a great builder. You can get Driveline cases, dunno if they are cheaper than oem, price wise. Go with Crankworks billet crank. Don't be afraid to ask specific questions. Envoyé de mon SM-S908W en utilisant Tapatalk

In French it's : You gay Envoyé de mon SM-S908W en utilisant Tapatalk

Why don't you use pump 93??? Did you check the UCCR? Envoyé de mon SM-S908W en utilisant Tapatalk

^^ I'm with dummy here Envoyé de mon SM-S908W en utilisant Tapatalk

No. C-12 is useless. You should always run the least octane your setup can take, not the other way around. Octane don't make power. Use 91-93 pump gaz, ethanol free is better Envoyé de mon SM-S908W en utilisant Tapatalk

Just use the oil and buy some easy available one after. Envoyé de mon SM-S908W en utilisant Tapatalk

Any modern oil mixed in between 2% and 4% will be good. Envoyé de mon SM-S908W en utilisant Tapatalk

Knock off pwk is a bad idea. Put real pwk 28mm You need the measure port timing with a degree wheel. Show pics of the porting job. And before you ask : use tapatalk. Envoyé de mon SM-S908W en utilisant Tapatalk