The 900hp Question

[Faid]

Ok dudes, im gettin ready for my nex step in preformance. I want a full drag setup, and im building a new block with a HKS 2.8 stroker etc. Im putting in a autronic ecu with a HKS T51 SPL turbocharger wich i think can make the 1000HP with supporting mods. ill run 3 bosch 044 pumps with a 2l swirl system and a tomei stnd GTR pump for lifting. 1000cc injectors with a FPR. my question is what cams i should use for this setup. its going to be a outrageous drag build. ill be using the PPG 6spd gearbox, and a Exedy tripple plate clutch. the cams must be for top preformance, they need to hold the engine till 11k rpm. and also what kind of ignition setup do i need, cuz now i am running splitfires with a HKS ign amplifier. do i need better coils. the head ill be putting on the engine will have 1mm oversize valves, a port polish job and all the valve train needed to support the engine. when i am talking about cams i mean duration and lift. if you guys can give me some input it would be geatly appreciated, cuz i dont have anyone in my country that can help me with advice on my sky GTR.

[T04GTR]

280 or 290 11.5 lift procams from tomie.

[T04GTR]

or some hks pro-L type. pretty much anything bigger that 280 and bigger han 10.5 mm lift

[CruiseLiner]

280 11.35mm jun cams (head needs machining for clearance), heavy duty valve springs and titanium retainers and with autronics ecu u will need the autronics cdi unit and best coils are the msd ones.

Edited March 4, 2007 by CruiseLiner

[blk180]

Would people go billet cams aswell?

[Adriano]

talk to NXTIME, hes got some of this stuff for sale, and can point you in the right direction. I think he's gt some 310deg cams 4 sale.

[Swiper the Fox]

280 or 290 11.5 lift procams from tomie.

yes these would do the job

[Swiper the Fox]

280 11.35mm jun cams (head needs machining for clearance), heavy duty valve springs and titanium retainers

but i would use this set-up with the 1mm oversize valves

[CruiseLiner]

but i would use this set-up with the 1mm oversize valves

Hey Paul what sort of hp will stock sized valves create a restriction? do u use 1mm oversized on inlet and exhuast when u upgrade? how much are the oversized valves exactly and how much machine work is required for these to fit in the place of stock valves?

just enquiring as i run the setup i mentioned

Edited March 4, 2007 by CruiseLiner

[Swiper the Fox]

Hey Paul what sort of hp will stock sized valves create a restriction? do u use 1mm oversized on inlet and exhuast when u upgrade? how much are the oversized valves exactly and how much machine work is required for these to fit in the place of stock valves?

just enquiring as i run the setup i mentioned

We have noticed a significant improvement in running oversized valves with this sized turbine and camshaft selection. Both in overall power and engine response.

i can get you a definate price on valves for you tomm. if you like, they are not as expensive as you may think

clearly recutting of the valve seats is required and guide clearance checked

[Shibby]

We have noticed a significant improvement in running oversized valves with this sized turbine and camshaft selection. Both in overall power and engine response.

i can get you a definate price on valves for you tomm. if you like, they are not as expensive as you may think

clearly recutting of the valve seats is required and guide clearance checked

Didn't you post a while back that you used poncams? Oversized cams with poncams is a overkill imo

or when you say we are you including yourself in the experience CRD has?

[Swiper the Fox]

Didn't you post a while back that you used poncams? Oversized cams with poncams is a overkill imo

or when you say we are you including yourself in the experience CRD has?

i haven't used a poncam in nearly 12 months, and yes oversized valves would be overkill for that application.

yes as major sponsor of our racecar CRD includes us in the development and research of OUR engines as well as using/sharing research gained from other cars.

[Shibby]

i haven't used a poncam in nearly 12 months, and yes oversized valves would be overkill for that application.

yes as major sponsor of our racecar CRD includes us in the development and research of OUR engines as well as using/sharing research on other cars.

Oh shlt sorry about that I thought you built your own engines and hadn't raced for nearly 12 months, whats the latest times your running?

Edited March 4, 2007 by Shibby

[Swiper the Fox]

Oh shlt sorry about that I thought you built your own engines and hadn't raced for near 12 months, whats the latest times your running?

yes you are correct, until recently i had engineered the car all on my own...engine building, modification, research and development. With CRD tuning the combinations i put together (with great success too i might add).

The last 12 months has seen our relationship with CRD expand to the point where they have included their knowledge in our engineering decisions, including engine builds and development, they have just completed building our next engine in house at CRD. Currently we are attempting to get our car finalised with new combo trackside next weekend. But due to component delivery delays we will be aiming for the WSID bracket meet on the 17th. If you are interested keep in touch via pm and ill let you know what day we are running, so you can come and check out the new set-up.

anyway im here trying to assist Faid with his set-up so.....

back on topic please.

[CruiseLiner]

cheers for the reply Paul

[Faid]

Thanks for the input guys. i think ill go the Jun 280 with 11.35 mm lift way. the head is being assembled by AEBS california, i only have to mail them with the specs and they set it up for me. eeumh another question if i run 10.49 with 600-625 awhp, what kinda times am i looking at with 900hp, full slick tires and a PPG gearbox. If its not to much of a hassle, you guys are invited to come to the race weekend (6-8 april) and watch compettitors from all over the carribean compete. Im defending my national title, can you believe that 10.49s is the best time we've clocked in this country

[discopotato03]

The story I get is +2mm on the exhaust valves and +1 on the inlets . Obviously the trick is to not let them get too close to each other on the overlap phase .

Cheers .

[Full-Race Geoff]

if you want to do the turbo setup right, dont use an off-the-shelf undivided T51R.

make sure the turbine inlet and turbo manifold is divided/twinscroll and try to use two wastegates (one on each division). it makes a big difference!!

[Faid]

does a twin wastegate setup on a single turbo realy make that big a difference, i allready have a split pulse entry manifold, it was for my T04Z but i am using the adaptor plate for the T51. i use a 60m HKS race gate wastegate, wich will stay atmo with a screamer and i will make a shorty exhaust from 4.5" tubing exiting behind the front wheel. the block was taken apart today, getting prepped to bore out and fit the HKS step III stroker, Trust enlarged sump, ATi balancer, and all the bits and pieces, the head will be done tomorrow, and i will be incorporating the Jun 280 @ 11.35 mm camshafts. so i think by this time next week the engine can be hung, and the painfull process of running wires and tuning the ECU can start. the gearbox is ready to go in, it has been prepped and filled with oil, the uprated driveshafts are allready bolted tight, so i hope to finish the build next week or so, cuz next weak my leave ends at work, and i have to work my arse off again

[Pauly33GTS-t]

What fuel will you be running/ tuning to run in this car?