Looks like it is going to be available soon: BritishV8 Forum: Willpower Intake Mainfold for Buick 300
I wouldn’t say that at all. My car with a Buick 350 and a single plane intake has perfect street manners. It’s all in the combo, 4.56 gears, 4000 stall lockup converter and overdrive and it’s fine at part throttle, or on boost.
You just basically just agreed with philbuick on his statement. Look at what you said 4.56 gears and 4000 stall, yeah I guess the single plane was made for that.
Mine does work on the street idle very good and my 60 ft did not suffer at the track. Went a tick faster but did no tuning. Actually the car starts and idles better with the single plane. I have 373 gears and 3000 stall 28" tires
Don’t fool yourself here! In the average rpm range that a street motor spends 90% of its running time in a good duel plane intake will out perform a single plane, it’s just that most guys don’t know that the duel plane needs a bigger carb then one would think to produce all the top end power that it can. so 4.56 gears on the street! No taking long interstate drives with that unless it’s on or in a trailer I guess. Really at least to me and likely many others does not fit my definition of a street vehicle! So what’s left to run at the strip, I have never seen 20” tall slicks, has anyone else?
This intake is similar to a Torker II. I just looked at a Dyno test between a Performer RPM dual plane and Torker II on a Mopar. At 3000RPM the Performer RPM made about 20HP more but at 6000RPM the Torker II made 20 HP more. If fuel injected the single plane works better.
Generalizations about single plane vs dual plane are easy to make however each combo needs to match the Rpm range. Keep in mind that for the and 350 the aftermarket dual plane intakes are little to no gain vs the factory intake. The TA single plane seems to be a gain across the board vs the TA dual plane and stock options. For the 300 the single plane will be the final piece of the puzzle for a TA rover style alum head stroker 349 cube high rpm screamer. A 10.5:1 300 with ported heads, big roller cam, and headers would likely love the single plane. A stock emgine would be a dog, it’s all in the combo. 455 guys use single planes all the time, street strip... Anytime someone is revving over 6000, or using a power adder the single plane is an advantage.
Your low end performance and fuel mileage must suck. It wont cause reliability issues, it'll run forever like that.
It's not going to stay in the idle to 3,500 RPM range very long with those gears, you'll never see bottom end torque problems with that ratio. You probably get 6 MPG, but you probably don't care. My sprint cars only see the track, I cruise in my Buicks, to each his own.
He has twin turbos sized properly so it spools up instantly. It’s a forged internal stroker setup at about 369 cubes if I remember correctly. With boost the single plane helps equalize the air fuel mixture to each cylinder. Believe me there is no issue with torque, the turbos hit immediately. He even has my old fully ported iron heads with roller rockers and oversized valves etc. Pro done heads.
Turbos change the equation. Also, if it's port injected, single plane is not a factor. Sounds like this is a purpose built performance engine. Is it driven on the public highways or just the track?
Both of our turbo cars are street driven, like he stated it’s his daily driver. You are making assumptions before you know what’s going on.... both of our cars run Holley style blow through setups.
32'' x 18.5'' tires do nothing for the 1/4 mile. tires/rims are too heavy to turn. takes a lot of hp to turn. all show and no go. you can go faster with 28 x 10.5. but i liked my s/p i built. engine loved the head porting and s/p. 7500 rpm was quick and easy to get too. be nice if they did some work on a 340 s/p intake.
I have the SP3 and 3.42 gears, no loss in low end torque, drives like fuel injection with my 850 AED carb. My 60 foot at the track remained the same @ 1.90 The 350 likes the SP3, plus the plugs color more even.
The D/P intake will make power all the way to 6200 I was still making 395 hp at 6200 falls off from there. So you can make good power with the DP intake. If you are basically stock yeah the DP intake will work just fine or if you are modified some. BUT! If you have stuffed a cam in the engine the DP intake is fine but the Single plane just does better with a cam in the 350, simple and as plain as that. I have ran both intakes on the street and the strip and the single plane did just as well as the DP intake. the 60 ft was the same and the car went a tick faster With and Without the nitrous. I gained a 10th with both and did not do any tuning at all. I can start the car up Without the choke don't have one and the car will sit there and idle without stalling, I would say that is pretty damn good with the Single plane. It starts better, and if the car sits for an hour it will start right back up WithOut and touch of the gas pedal. I have over 3 years with this intake and if you have put a cam in your 350 the Single plane intake is just better. Period!! If you aint done it you don't know... fill in the blank.
It's nice to have another choice for the 300 since there aren't that many out there now. Jim I don't recall but is he putting in the injector bosses on the runners? Jim
