Anybody ever run a supercharger (example ATI Procharger, Vortec) and blown through a 1050 dominator. If so, did it work good, or work bad. I have an 11.5:1 TA Stage 2 headed 455 and was thinking about using a small supercharger instead of nitrous. Any suggestions or help would be appreciated.
Hi.......... I'll be installing one this weekend (ATI D1SC). Mike Tweedy (user name on the board is Mike T) Has been making / testing the bracket for the ATI Procharger. I'd contact him for more information. I'm not sure how it would like the 1050 dominator carb tho. From what I understand, Blow through chargers like smaller carbs, and I'm not sure they make a carb hat that fits the Dominator. Mike would be able to give you more info on this. Good luck
Oh I will ........ It's been a long time coming, but it sounds like Mike finally got a bracket that he's comfortable won't fatique over the years (it does look like realy sout). He's sending me the Proto type bracket so I don't have to wait for the CNC maching process (what a guy huh :TU: ). Anyway, everything is in place and pretty much waiting for the bracket and hardware. They should show up Thursday or Friday. Once it's all on and somewhat tuned, I'll post some before and after #'s from the G-tech along with how much boost it took for the improvments. At this point, I'm expecting at least 1 full second off the quarter with 6 to 8 psi. (non intercooled / but alky injected under high boost). Should be alot of fun, and I'm really stoked it's finnaly going to happen :grin:
I believe he is. Send him a PM "Mike T" I know he was wanting to set you guys up too...... I'm just not sure where he is with it.
I'm definitely no expert... but are you sure you'd be ok adding boost to an 11.5:1 engine? I mean as far as detonation is concerned?
I was going to run a race gas mix, hopefully around 100 octane or better, I was figuring a 2 gallon pump gas to 1 gallon race gas (C116 or something simular) I have seen people run boost on 11:1 chevys with no problem, so I do not see a problem with the Buick
With higher compression with the power adder couldn't you retard timing like when used in a nitrous application to prevent lean condition and control the detonation while at higher RPM.
As long as it's intercooled, or alky injected I think some boost would be ok with 100 octane gas. I don't think I'd try and run any more than 7 or 8 psi on 100 octane and a cooled air charge with over 11.5 to 1 compression.
That's cool.... I wasn't sure what you were planning to run in it or how serious your background was, so I thought I'd better ask I've seen a lot of backyard Chevy dunkleheads try to crank too much into a pump gas high compression engine (with no extra bottom end prep work, I might add) and wonder why it blew apart.
I was also planning on forced induction, but with a powerstroke turbo on my 455. Maybe 4-5 psi, 9:1 compression with octane boosted gas and either water injection or intercooling. I'm hoping for 500 hp at the crank as I want mid to high 11's in the 1/4. I hope that's realistic.
supercharged 455 az are you using a powerstroke diesel turbo?i work with those engines everyday and i thought of turbocharging my 455 but i figure i would need 2 of them as the cfm isnt that high. the cubes is 444 and only spins to 2800 max rpm so i think you would run out of turbo long before you run out of engine anyone with a procharger with blow thru carbs .what are you doing to card so it doenst blow air and gas everywhere out of carb ,into vents,vacuum ports,back up fuellines?it has to pressureize everything in carb right?please explain thanks andyou:
Rich, please tell me that you have a GOOD camera, and are going to start a NEW THREAD with installation photos...:Brow: I would like to see a photo of the bracket also. I wanted to do this project YEARS AGO when PHR did this with a small block Mopar, but lack of money stopped me.ou: Best wishes:TU:
Yes, I do plan on taking some install pic's. The camera is so so, but I think it will do the job. As of today, the brackets still haven't arrived. Hopefully they come tomorrow so I can do the install on Saturday. If not, it won't be until late next week. I'll keep you all posted. alec296 As for your blow through questions. Gas leakage doesn't become and issue until you start pushing 11 psi or better. At that point you will need your carb built for high boost app. Under 11psi (assuming the throtle shaft is tight, all you should have to do is replace the floats with polymer floats so they don't colapse. Besides that, just lots of tunning.
Re: supercharged 455 With the blow through the carb set-up, you either need a bonnet theat fits on top of the carb, it pressurizes the bowls as well, this is the ATI style, or you need a complete carb enclosure, this is the paxton style. One of the interesting things with a blow through the carb set-up is jetting. They recommend jetting thr carb up 20%, this was a big mistake, we had to jet the carb down. Another word of advice with the blow through the carb set-up, something like a carter, quadra jet or thermo quad will not work with the top bonnet (ATI ) style unless you can find a way to seal the accelerator pump shaft, since it will be out side the bonnet , and the bowl will be pressurized, you will spray fuel everywhere. Jim Burek P.A.E. ENTERPRISES
Alec, I'm still in the planning stages and had hoped the Powerstroke could be professionally modifed to work with the 455, but with what you are saying that may not be the case I hope it can be done with out being too expensive. As for carb choice with a bonnet, I understand Demon carbs and the Holley Double Pumper with mechanical secondaries are good picks. Also, if Hugh McInnes is to be believed (and he is) the vacuum source for power brakes and such will need check valves as vacuum will be sporadic. Besides, I don't think you want boost in any of the items that should be getting vacuum.
