$15K power challenge - Page 16 - LotusTalk

kortik · 11-03-2007, 03:02 AM

he doesnt need to its purely track car

LittleRocket · 11-06-2007, 08:46 AM

Pete,

I haven't been in the thread in a while so I thought I would put this update in the thread rather than the normal e-mail.

I found interference with the plugs and the intake valves (only at full intake cam advance with lift engaged). Sigh. I was so ready to start back together with this one. I will be in contact with Wiseco today to see how much deeper I can take the valve pocket and how they recommend relieving the dome for the plug. I have what I think is a good idea and has worked well in the past but I would rather talk to them to make certain I don't cut to deep.

David

sleepless · 11-12-2007, 07:19 PM

Word from David is that the pistons are the machinist's to make for some more clearance for the valves. Looks like we'll be at 14:1 instead of the expected 15:1.

MikeW · 11-12-2007, 09:12 PM

Quote:

Originally Posted by sleepless

Word from David is that the pistons are the machinist's to make for some more clearance for the valves. Looks like we'll be at 14:1 instead of the expected 15:1.

Do you have a specific race fuel in mind?

sleepless · 11-12-2007, 09:36 PM

100 Unleaded.

kortik · 11-12-2007, 11:11 PM

where in Seattle do you get that gas?

sleepless · 11-13-2007, 09:31 AM

Quote:

Originally Posted by kortik

where in Seattle do you get that gas?

Lots of motorsports shops carry it: Cantrell Motorsports carries it.

There is a 76 station in Auburn that carries it.

Pacific Raceways carries it.

I also use Torco octane booster when I can't get race gas and just need to boost 92 to say 95/96.

LittleRocket · 11-28-2007, 09:39 PM

We have piston to valve clearance.

I have to de burr the mill work and then off to coaters on saturday!!! Woot!

GTsRasta · 12-05-2007, 08:27 AM

Any updates? I haves more questionesssss.

Why did you guys decide to create a custom race intake manifold instead of going with ITB's like Trial? I know the market for your race manifold would be greater, but the ITB's would have been b*tchin for NA!

And what are you goin to do about knock control? J&S? If knock wasn't an issue, how reliable would his engine be overall?

And what about the custom race header you guys proposed in the beginning? The Lotus PPE one should be produced and out by the beginning of next year

LittleRocket · 12-05-2007, 10:06 PM

Just plugging away.

ITB's require a map sensor. Speed density is an inferior tuning system to maf imho.

Besides the intake flows 2cfm less than a itbs and the car is wired for a maf based pfc already.

Longevity depends on how it is tuned and how it is used.

GTsRasta · 12-05-2007, 10:20 PM

Nice. I was also wondering why you didn't just go with the "plug & play" Hydra too.

choi0706 · 12-05-2007, 10:21 PM

you could use a MAF with ITBs..

but the noise may not be there..

LittleRocket · 12-06-2007, 09:24 AM

Quote:

Originally Posted by GTsRasta

Nice. I was also wondering why you didn't just go with the "plug & play" Hydra too.

4 reasons.

1. I have never seen a hydra plug and play harness. Hydra has talked a lot about things they don't have on hand as if they were.

2. The vvt-i tuning portion of the hydra is a joke. The scaling doesn't fit the rest of the maps. Tuning on the fly is just not doable with their current interface.

3. Hydras don't make the power the apexi pfc does. Probably because they are such a pita to tune.

4. I can peak power tune a pfc in less than an hour and tune a whole map in about 4 hours.....

LittleRocket · 12-06-2007, 09:26 AM

Quote:

Originally Posted by choi0706

you could use a MAF with ITBs..

but the noise may not be there..

My intake is more or less as you describe. It uses a huge t/b (for a 4 cylinder) and tuned horns.

shay2nak · 12-06-2007, 01:24 PM

when do you guys plan to have this motor in a car? Just curious...it seems like this thread has gone on forever and I haven't seen anything.

dustylax · 12-06-2007, 08:05 PM

Setting up the flow bench and doing extensive research and testing over and over to ruin heads and try different things takes a very very long time, be patient he is going to blow you guys away w/his results.

shay2nak · 12-06-2007, 10:18 PM

Quote:

Originally Posted by dustylax

Setting up the flow bench and doing extensive research and testing over and over to ruin heads and try different things takes a very very long time, be patient he is going to blow you guys away w/his results.

no rush for me.

just curious. look forward to the finished product.

iwilson · 12-09-2007, 12:21 AM

318 posts, 15 months and still no engine, sleepless you must be getting a bit sleepy by now

You should have dropped a Honda in it. I just put a new header and exhaust system on mine. Remapped it on Friday and got a bit of a surprise....

232hp at the hubs and 176lbft of torque. An improvement of 30hp over the old system.

Engine is stock btw.

Trackday tomorrow

sleepless · 12-09-2007, 07:34 PM

Nice results.

I considered a Honda transplant but I have yet to see anyone show me they can actually do it; and have no issues afterwards. So, as far as I'm concerned, it was not a viable option.

Several people suggested that I do the Honda transplant and implied they were going to do it themselves. I haven't seen any of them succeed; in the last 12 months...

dustylax · 12-09-2007, 08:09 PM

shouldnt it be all stock parts that bolt on since its optional/stock over there or something ?

or are the problems your talking about having to do w/emissions and such ?

11-03-2007, 03:02 AM	#301 (permalink)
kortik Matrix XRS 2zz-ge Join Date: Mar 2006 Location: Seattle, WA Posts: 306	he doesnt need to its purely track car __________________ 05 Toyota Matrix XRS Indigo Ink Pearl 2zz-ge Progress Rear Sway Bar TRD STB PBR Groundwires MagnaFlow Cat Back Exhaust Tein SS coilovers TWM Short Shifter Injen CAI C-one perfromance Fr. Rr. Bar C-one Underpanel

11-06-2007, 08:46 AM	#302 (permalink)
LittleRocket Registered User Join Date: Nov 2003 Location: Houston, Tx Posts: 189	Pete, I haven't been in the thread in a while so I thought I would put this update in the thread rather than the normal e-mail. I found interference with the plugs and the intake valves (only at full intake cam advance with lift engaged). Sigh. I was so ready to start back together with this one. I will be in contact with Wiseco today to see how much deeper I can take the valve pocket and how they recommend relieving the dome for the plug. I have what I think is a good idea and has worked well in the past but I would rather talk to them to make certain I don't cut to deep. David __________________ Built 2zz powered, 6 speed-lsd mr2 spyder

11-12-2007, 07:19 PM	#303 (permalink)
sleepless Elise Fanatic Join Date: Dec 2004 Location: Seattle Posts: 2,224	Word from David is that the pistons are the machinist's to make for some more clearance for the valves. Looks like we'll be at 14:1 instead of the expected 15:1. __________________ Pete 05 Lotus Elise \| 06 Porsche Boxster S \| 97 Porsche Turbo

11-12-2007, 09:36 PM	#305 (permalink)
sleepless Elise Fanatic Join Date: Dec 2004 Location: Seattle Posts: 2,224	100 Unleaded. __________________ Pete 05 Lotus Elise \| 06 Porsche Boxster S \| 97 Porsche Turbo

11-12-2007, 11:11 PM	#306 (permalink)
kortik Matrix XRS 2zz-ge Join Date: Mar 2006 Location: Seattle, WA Posts: 306	where in Seattle do you get that gas? __________________ 05 Toyota Matrix XRS Indigo Ink Pearl 2zz-ge Progress Rear Sway Bar TRD STB PBR Groundwires MagnaFlow Cat Back Exhaust Tein SS coilovers TWM Short Shifter Injen CAI C-one perfromance Fr. Rr. Bar C-one Underpanel

11-28-2007, 09:39 PM	#308 (permalink)
LittleRocket Registered User Join Date: Nov 2003 Location: Houston, Tx Posts: 189	We have piston to valve clearance. I have to de burr the mill work and then off to coaters on saturday!!! Woot! __________________ Built 2zz powered, 6 speed-lsd mr2 spyder

12-05-2007, 10:06 PM	#310 (permalink)
LittleRocket Registered User Join Date: Nov 2003 Location: Houston, Tx Posts: 189	Just plugging away. ITB's require a map sensor. Speed density is an inferior tuning system to maf imho. Besides the intake flows 2cfm less than a itbs and the car is wired for a maf based pfc already. Longevity depends on how it is tuned and how it is used. __________________ Built 2zz powered, 6 speed-lsd mr2 spyder

12-05-2007, 10:21 PM	#312 (permalink)
choi0706 Registered User Join Date: Sep 2004 Location: Houston/Austin Posts: 4,224	you could use a MAF with ITBs.. but the noise may not be there.. __________________ Jay-05' ST, HT, Touring Red Rally Ready

12-06-2007, 01:24 PM	#315 (permalink)
shay2nak I <3 chicken, I <3 liver Join Date: Dec 2003 Location: Land of da 1000 Oaks, CA Posts: 15,042	when do you guys plan to have this motor in a car? Just curious...it seems like this thread has gone on forever and I haven't seen anything. __________________ save ~10 lbs gain 1 hp EQ: Y=(190X) / (1984-X) where Y is (HP) and X is (lbs) '07 EXIGE S * MY CAR ** VIDEOS! '08 ACURA TSX 6-speed http://www.makeNYNYagain.com

12-06-2007, 08:05 PM	#316 (permalink)
dustylax 2.0-6262 Join Date: May 2007 Location: NY Posts: 437	Setting up the flow bench and doing extensive research and testing over and over to ruin heads and try different things takes a very very long time, be patient he is going to blow you guys away w/his results. __________________ Please PM if you need anything, i am working from home now.

12-09-2007, 12:21 AM	#318 (permalink)
iwilson Registered User Join Date: Jan 2004 Location: Pukekohe, New Zealand Posts: 484	318 posts, 15 months and still no engine, sleepless you must be getting a bit sleepy by now You should have dropped a Honda in it. I just put a new header and exhaust system on mine. Remapped it on Friday and got a bit of a surprise.... 232hp at the hubs and 176lbft of torque. An improvement of 30hp over the old system. Engine is stock btw. Trackday tomorrow

12-09-2007, 07:34 PM	#319 (permalink)
sleepless Elise Fanatic Join Date: Dec 2004 Location: Seattle Posts: 2,224	Nice results. I considered a Honda transplant but I have yet to see anyone show me they can actually do it; and have no issues afterwards. So, as far as I'm concerned, it was not a viable option. Several people suggested that I do the Honda transplant and implied they were going to do it themselves. I haven't seen any of them succeed; in the last 12 months... __________________ Pete 05 Lotus Elise \| 06 Porsche Boxster S \| 97 Porsche Turbo

12-09-2007, 08:09 PM	#320 (permalink)
dustylax 2.0-6262 Join Date: May 2007 Location: NY Posts: 437	shouldnt it be all stock parts that bolt on since its optional/stock over there or something ? or are the problems your talking about having to do w/emissions and such ? __________________ Please PM if you need anything, i am working from home now.

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