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Search: Posts Made By: Tapio@FTTRacing
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Forum: C4 Tech/Performance
06-08-2015, 04:07 AM
Replies: 14
Views: 1,904
Posted By Tapio@FTTRacing

Thanks for the tips guys! I tried lowering the...

Thanks for the tips guys!
I tried lowering the tyre pressure a little, adjusted the shocks as soft as possible and tried to be more careful with the throttle.

Here's a video from my launches,...
Forum: C4 Tech/Performance
05-13-2015, 04:56 AM
Replies: 14
Views: 1,904
Posted By Tapio@FTTRacing

Tips on launching the car with poor traction?

Hi all!

I've done around hundred passes with my -96 lt4 6-speed so it's safe to say I know the concept. But I would like to know how you guys launch when there isn't much traction.

There's...
Forum: C4 Tech/Performance
04-15-2015, 04:11 AM
Replies: 59
Views: 6,890
Posted By Tapio@FTTRacing

Factory harness will handle the current just...

Factory harness will handle the current just fine. Power loss due resistance is a real thing, but has anyone measured the resistance of the factory wiring?
Forum: C4 Tech/Performance
02-19-2015, 02:02 AM
Replies: 3
Views: 5,849
Posted By Tapio@FTTRacing

Are we talking about used scrapyard roller block,...

Are we talking about used scrapyard roller block, new gm block or new aftermarket block? I personally would go with world products motown iron block since they can take some serious beating
Forum: C4 Tech/Performance
02-15-2015, 11:12 PM
Replies: 48
Views: 5,263
Posted By Tapio@FTTRacing

Cam, heads, ported intake, long tube headers and...

Cam, heads, ported intake, long tube headers and 1.6 rockers should be a nice start :)
Forum: C4 Tech/Performance
02-15-2015, 06:21 AM
Replies: 68
Views: 22,365
Posted By Tapio@FTTRacing

So you guys who have these conversations, how...

So you guys who have these conversations, how does the car drive compared to fully working stock opti+single coil system?

I haven't driven LTCC converted car so I have no idea how it compares,...
Forum: C4 Tech/Performance
02-08-2015, 12:19 AM
Replies: 3
Views: 506
Posted By Tapio@FTTRacing

Cold air intakes are waste of money and time with...

Cold air intakes are waste of money and time with these cars. Swapping the cam would make a big difference and wont cost too much. and while you're at it you can port the intake to match the heads,...
Forum: C4 Tech/Performance
12-12-2014, 09:45 AM
Replies: 7
Views: 1,601
Posted By Tapio@FTTRacing

Just like Orr89rocz said, they both have their...

Just like Orr89rocz said, they both have their own pro's and con's.

I prefer the x-pipe for it's better flow and cleaner sound
Forum: C4 Tech/Performance
10-28-2014, 09:08 AM
Replies: 16
Views: 8,564
Posted By Tapio@FTTRacing

That's something I find awesome and odd, shouldnt...

That's something I find awesome and odd, shouldnt be possible. And you are making 600hp with those?
Forum: C4 Tech/Performance
10-28-2014, 08:14 AM
Replies: 16
Views: 8,564
Posted By Tapio@FTTRacing

With patch you fire each injector twice per cam...

With patch you fire each injector twice per cam rotation

With sequential you fire each injector once per cam rotation.

Because on batch mode you have to fire your injectors more often, they...
Forum: C4 Tech/Performance
10-28-2014, 07:30 AM
Replies: 16
Views: 8,564
Posted By Tapio@FTTRacing

Would you care to elaborate on that? I dont see...

Would you care to elaborate on that? I dont see why would batch setup has anything to do with fuel injector sizing
Forum: C4 Tech/Performance
10-21-2014, 11:26 PM
Replies: 39
Views: 6,810
Posted By Tapio@FTTRacing

Sorry, I was in a bit of hurry yesterday, just...

Sorry, I was in a bit of hurry yesterday, just posted the videos and went to sleep.



1: first two runs were with cold air, last two were with stock cover
2: there was aprox. 1 hour between the...
Forum: C4 Tech/Performance
10-21-2014, 04:21 PM
Replies: 39
Views: 6,810
Posted By Tapio@FTTRacing

Here's one video I made. It starts from 100kmh...

Here's one video I made. It starts from 100kmh (62mph). Left one is stock license plate cover and right one is ram air version.

http://www.youtube.com/watch?v=HK6c27Ixno8

I will post pics from...
Forum: C4 Tech/Performance
10-20-2014, 02:53 PM
Replies: 39
Views: 6,810
Posted By Tapio@FTTRacing

Hello again. Did some testing again, this time on...

Hello again. Did some testing again, this time on standing mile.

Two passes with diy ram air = cut license plate cover with dut to direct air to filter and two passes with stock license plate...
Forum: C4 Tech/Performance
09-09-2014, 08:17 AM
Replies: 8
Views: 3,088
Posted By Tapio@FTTRacing

Is your motor stock? If it is, how it's going to...

Is your motor stock? If it is, how it's going to draw more air by removing the screens? Only thing that screen removal is going to do is inaccurate maf reading. Those screens are there to make the...
Forum: C4 Tech/Performance
09-03-2014, 09:24 AM
Replies: 15
Views: 2,644
Posted By Tapio@FTTRacing

Why is the OP trying to boost octane in the first...

Why is the OP trying to boost octane in the first place?
Forum: C4 Tech/Performance
08-30-2014, 11:32 AM
Replies: 19
Views: 2,946
Posted By Tapio@FTTRacing

mine are not, only horsepower, number of...

mine are not, only horsepower, number of injectors and injector duty cycle, and some use B.S.F.C.

You fill in your all those I mentioned and the calc gives you sufficient flow rate. We can use the...
Forum: C4 Tech/Performance
08-30-2014, 10:37 AM
Replies: 19
Views: 2,946
Posted By Tapio@FTTRacing

Neither did I! All my calcs say that even with...

Neither did I! All my calcs say that even with 100% duty cycle they can feed for only 400hp at the crank
Forum: C4 Tech/Performance
08-29-2014, 06:58 AM
Replies: 19
Views: 2,946
Posted By Tapio@FTTRacing

Im running very similiar setup than you, and they...

Im running very similiar setup than you, and they havent maxed out
383, ported lt4 heads, ported lt4 intake, cc503 cam, 58mm tb, long tubes etc. 400hp on wheels, 120mph trap speed on 1/4 mile.
...
Forum: C4 Tech/Performance
08-29-2014, 06:13 AM
Replies: 19
Views: 2,946
Posted By Tapio@FTTRacing

look no further, I'm more than happy with these...

look no further, I'm more than happy with these :thumbs:

http://fuelinjectorconnection.com/shop/viewitem.php?productid=102
Forum: C4 Tech/Performance
08-23-2014, 11:45 AM
Replies: 9
Views: 4,448
Posted By Tapio@FTTRacing

It's mildly modified lt4, making somewhere around...

It's mildly modified lt4, making somewhere around 420whp. Not enough power to go really fast, just trying to get best out from what I have. I'm not trying to be the fastest guy there, it's more like...
Forum: C4 Tech/Performance
08-22-2014, 04:45 AM
Replies: 9
Views: 4,448
Posted By Tapio@FTTRacing

c4 aerodynamics for less drag

So I'm tweaking my street driven -96 for standing mile events and I would like to know what there is to do for less drag.

I already have rear diffuser that smooths out the area after rear diff,...
Forum: C4 Tech/Performance
08-21-2014, 11:19 AM
Replies: 39
Views: 6,810
Posted By Tapio@FTTRacing

I like theory and since so do you, let's have...

I like theory and since so do you, let's have some more. I personally don't believe that the bernoulli effect would be noticeable in this case.

with my 383 spinning 6500 with 0.8 VE, it takes in...
Forum: C4 Tech/Performance
08-21-2014, 09:56 AM
Replies: 39
Views: 6,810
Posted By Tapio@FTTRacing

Sorry to burst your bubbles but I actually did...

Sorry to burst your bubbles but I actually did some testing on this few weeks ago. -96 with cut lid and k&n filter. No additional ducts or holes.

90F day outside, I took a digital cooking...
Forum: C4 Tech/Performance
08-19-2014, 12:25 AM
Replies: 7
Views: 610
Posted By Tapio@FTTRacing

... And why are blocking that square port exhaust...

... And why are blocking that square port exhaust flow with oval port headers?
Showing results 1 to 25 of 92
 
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