HPDE/time trial build questions
Thread Starter
2nd Gear
Joined: Apr 2015
Posts: 2
Likes: 0
HPDE/time trial build questions
Building a HPDE/time trial car (Rx7) and am curious on a few items before I buy stuff.
Car is around 2600 pounds, getting an 04 pullout with a T56, 110k miles.
Plan on the below
improved racing oil pan baffle
melling high flow/pressure oil pump
comp cams 11-428-54, 228/230 .571/.573. 112+4
Trunion kit
PSI 1512 springs
Comp cams 875-16 short travel roller lifters
new lifter guides, drilled
new pushrods, need to check for length
1 3/4 long tube headers, largest I can fit in my car that isn't custom.
Coyles timing set
3qt accusump
Possibly new clutch and lightweight flywheel, open to recommendations on these as well but no carbon stuff since I can't afford it...
Leaving everything else stock, heads and bottom end. Rev limiter set to 6800 unless the car drops in power before that, dyno tune.
This seem like a decent plan from a matching perspective? Any glaring issues?
Thanks
Car is around 2600 pounds, getting an 04 pullout with a T56, 110k miles.
Plan on the below
improved racing oil pan baffle
melling high flow/pressure oil pump
comp cams 11-428-54, 228/230 .571/.573. 112+4
Trunion kit
PSI 1512 springs
Comp cams 875-16 short travel roller lifters
new lifter guides, drilled
new pushrods, need to check for length
1 3/4 long tube headers, largest I can fit in my car that isn't custom.
Coyles timing set
3qt accusump
Possibly new clutch and lightweight flywheel, open to recommendations on these as well but no carbon stuff since I can't afford it...
Leaving everything else stock, heads and bottom end. Rev limiter set to 6800 unless the car drops in power before that, dyno tune.
This seem like a decent plan from a matching perspective? Any glaring issues?
Thanks
"AlohaC5" Senior Member
Joined: Jun 2003
Posts: 3,562
Likes: 44
From: Madison, AL
You didn't mention your brake system, e.g., cooling ducts, brake pad compounds, rotors, stainless steel brake lines, DOT 4 fluid. Also didn't mention cooling, e.g., performance radiator (larger capacity), oil cooler, power steering cooler, etc. How about your suspension? Shocks and struts vs. coilovers with sway bars, alignment specs, tires, etc. What safety features are you adding: fire extinguisher, harness bar, race seats, 5 or 6 point harnesses, etc.
Last edited by Gray Ghost GS; May 2, 2015 at 10:53 PM.
Thread Starter
2nd Gear
Joined: Apr 2015
Posts: 2
Likes: 0
Sorry about that, I have the rest pretty well covered, just not familiar with the engine side.
Dual oil coolers, larger radiator. No power steering or AC
AP racing brakes, coilovers, roll bar, 5pt harness, sparco Evo seats, toyo RA1's for the moment. Eventually I am sure the car will see Hoosiers but probably not this year. I drove the car last year with the above items. Will be getting a HANS before my first event this year.
Was thinking about a diff cooler as well.
Dual oil coolers, larger radiator. No power steering or AC
AP racing brakes, coilovers, roll bar, 5pt harness, sparco Evo seats, toyo RA1's for the moment. Eventually I am sure the car will see Hoosiers but probably not this year. I drove the car last year with the above items. Will be getting a HANS before my first event this year.
Was thinking about a diff cooler as well.
Last edited by Arutha; May 3, 2015 at 09:38 AM.
