Title: 12 Sec combo Post by: Garrick Clark on December 07, 2018, 18:32:16 pm Hi Racers.
I'm just wondering what would the power and weight of a beetle with a standard ratio 15oo box with 4.125 R and P on 205 tyres need to be at to get into the 12's. I'm trying to work out were I might be timewise with my bug without going to the strip. Bug is 1870lbs with me in it. 300 hp 1500 ratios with 4.125 Thanks. Feel free to post your power/weight/1/4 times. Title: Re: 12 Sec combo Post by: PPRMicke on December 09, 2018, 11:39:25 am Hi Racers. 214 hk I'm just wondering what would the power and weight of a beetle with a standard ratio 15oo box with 4.125 R and P on 205 tyres need to be at to get into the 12's. I'm trying to work out were I might be timewise with my bug without going to the strip. Bug is 1870lbs with me in it. 300 hp 1500 ratios with 4.125 Thanks. Feel free to post your power/weight/1/4 times. a link that you can calculate how much hp http://www.wallaceracing.com/et-hp-mph.php What you do is change the gearbox ( 4.125 3.80 2.05 1.45 1.05) /// Micke Title: Re: 12 Sec combo Post by: Garrick Clark on December 09, 2018, 12:43:48 pm Hey thanks Micke.
So it calculates at 214 HP to do a 12 with a 1870lb vehicle. So I should be able to go lower than a 12 with my current HP. So long as I had the above ratios. So Micke with my standard ratios what would you think my time would be. I need street ratios really but still want to have a low times street bug. Comes down to more power/less weight doesn't it. Title: Re: 12 Sec combo Post by: PPRMicke on December 09, 2018, 19:07:27 pm Hey thanks Micke. There are different ways to go if you want to use the car on the strip if you want to drive fastSo it calculates at 214 HP to do a 12 with a 1870lb vehicle. So I should be able to go lower than a 12 with my current HP. So long as I had the above ratios. So Micke with my standard ratios what would you think my time would be. I need street ratios really but still want to have a low times street bug. Comes down to more power/less weight doesn't it. To 99% it is the gearbox You can change 3an's drive so it should go faster After that you have 0.89 on gear 4 (so the peak speed is 230kmt @ 7200 rpm The cheapest way is to have different large tires Small on the strip big on the street /// Micke Title: Re: 12 Sec combo Post by: richie on December 09, 2018, 21:15:46 pm It will break 1st gear trying :o
Stock 1500 1st gear just isn't up to it, but in an imaginary world where it didn't break ;D then it should run about mid 12s, trouble with a turbo car is you cant leave with max boost & hp so using 300hp in any 1/4 mile calc like the one Micke posted[which is a really good calc :) ] wont give anywhere near accurate results, also it calcs based on 100% traction which you will not have, finally its rear wheel hp and I am guessing you are using flywheel hp? Here's a few actual 1/4 mile times from cars/engines I have built 67 beetle 195rwhp N/A 1750lbs, regular radials 12.44@103[gearing to tall] Same car with slicks and 280ish rwhp using nitrous 10.42@125mph 63 ragtop beetle 210rwhp high compression N/A 1735lbs slicks no burnout 11.56@116mph 56 oval beetle slicks 350rwhp drawthrough turbo approx. 1700lbs 10.63@128mph 850 Fiat with VW engine, just regular N/A pump gas 2276, approx 150 rwhp just under 1500lbs 11.91@109mph cheers Richie Title: Re: 12 Sec combo Post by: Garrick Clark on December 10, 2018, 18:46:57 pm Hi Richie, Yes its flywheel power. The box I now have installed is the same ratio as my old 1500 box ,I can tell when I drive it. It feels the same. But its a KCR one. I'm hoping he put a few goodies in or did some tricks to it. its got a side plate on it and a S diff.
Dub shop Micro Squirt being fitted in Jan. So no more spark blow out + injection. Hopefully that will improve things. So long as its quicker than the golf R boys I'll be happy. Title: Re: 12 Sec combo Post by: neil68 on December 10, 2018, 18:55:06 pm 204 WHP
12.5 ET 2,045 lb/930 kg stock 68 Beetle Title: Re: 12 Sec combo Post by: leec on December 10, 2018, 21:06:14 pm Hi Richie, Yes its flywheel power. The box I now have installed is the same ratio as my old 1500 box ,I can tell when I drive it. It feels the same. But its a KCR one. I'm hoping he put a few goodies in or did some tricks to it. its got a side plate on it and a S diff. Dub shop Micro Squirt being fitted in Jan. So no more spark blow out + injection. Hopefully that will improve things. So long as its quicker than the golf R boys I'll be happy. Those Golf R's are rapid. Easy 12's with a remap. It's much easier with these new turbo cars :) Title: Re: 12 Sec combo Post by: Garrick Clark on December 11, 2018, 07:47:10 am I was a passenger in one the other day. Tech wise it was good. It just didn't have a big power surge to it. So a mapped one is in the 12's.loads of air cooled v dubs will better that these days. Hopefully mine. Lol
Title: Re: 12 Sec combo Post by: PPRMicke on December 11, 2018, 14:18:08 pm Hi Richie, Yes its flywheel power. The box I now have installed is the same ratio as my old 1500 box ,I can tell when I drive it. It feels the same. But its a KCR one. I'm hoping he put a few goodies in or did some tricks to it. its got a side plate on it and a S diff. Dub shop Micro Squirt being fitted in Jan. So no more spark blow out + injection. Hopefully that will improve things. So long as its quicker than the golf R boys I'll be happy. Those Golf R's are rapid. Easy 12's with a remap. It's much easier with these new turbo cars :) Title: Re: 12 Sec combo Post by: DaveN on December 11, 2018, 14:19:30 pm The guy who used to do my machine work has a customer who owns one with a remap and hybrid turbo, it runs 10.8-9 driven there and back. He swaps tyres at the track and drives it daily. Most stock modern stuff isn?t that quick on the track, add another quarter mile and it will be a different story
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